Documentation wiki:v3

wiki:v3:action_menu

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Action Menu This menu lists all of the “actions” that have been queried and are available on your Pixy. * Run/Stop: This is the same as pressing the Run/Stop button in the main window of PixyMon. Selecting this stops the video that's being rendered in the video window. This is useful when

wiki:v3:arduino_api

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Arduino Library and API Installing the Arduino Library Download the latest Arduino library “arduino_pixy-x.y.z.zip” here. Bring up the Arduino IDE and import the Pixy library by selecting Sketch➜Import Library in the Arduino IDE, and then browse to the Arduino zip file that you just downloaded.

wiki:v3:assembling_pantilt_mechanism

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Assembling the pan/tilt Mechanism When combined with Pixy, the pan/tilt mechanism makes a fun demo — a good “hello world” for Pixy (no Arduino required). The pan/tilt mechanism comes in a kit and requires some assembly. You will need the following (in addition to a Pixy2 and a pan/tilt kit):

wiki:v3:barcode_labels_pane

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Barcode Labels tab The Barcode Labels tab allows you to label barcodes that are detected by Pixy2. To bring up this tab, you must be running the line_tracking program by selecting it in the Program menu, and then bringing up the Configure Dialog (click on the gear icon or select

wiki:v3:blocks_pane

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Blocks Tab Pixy can detect/track literally hundreds of objects at the same time. Each detected object is reported as a “block,” with a specific signature number, location within the image, and size (width and height). The blocks are reported through one of its serial ports (UART, SPI, I2C, USB, analog and digital output) for each frame (every 20 milliseconds) . This tab contains some parameters for controlling the number of blocks Pixy will report for each frame. To bring up the Block Tab, firs…

wiki:v3:building_a_libpixyusb_python_module_-28linux__mac_os_x-29

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Building a libpixyusb Python module on Linux Introduction The libpixyusb library provides a software application programming interface (API) for communicating with Pixy over USB. The following procedure will outline the steps to build libpixyusb as a Python module.

wiki:v3:building_a_libpixyusb_python_module_on_linux

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

wiki:v3:building_libpixyusb_as_a_python_module_on_linux

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Using the Python API on Linux 1.0. Introduction Pixy2 now has a Python wrapper for libpixyusb2. For now, this is only available for Linux-based controllers (e.g. Raspberry Pi, BeagleBone). The libpixyusb2 library provides a software application programming interface (

wiki:v3:building_libpixyusb_as_a_python_module_on_linux2

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Introduction Pixy now has a Python wrapper for libpixyusb. For now, this is only available for Linux-based controllers (e.g. Raspberry Pi, BeagleBone). The libpixyusb library provides a software application programming interface (API) for communicating with Pixy over USB. The following procedure will outline the steps to build libpixyusb as a Python module.

wiki:v3:building_pixy_firmware

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Building Pixy Firmware Pixy currently uses Keil MDK-ARM version 5. Keil is basically free for university users, but requires a paid license normally. To compile the firmware with Keil, you just point the IDE to the “workspace.uvmpw” workspace file in ~src/device/main__________

wiki:v3:building_pixymon

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Building PixyMon PixyMon, like all of Pixy, is fully open source. You can obtain the latest source through git and github. The default master branch contains the latest stable source code. Building in Windows To build PixyMon for Windows, you need to first install the Qt development environment. Probably the easiest way to get there is to install the Qt Open Source distribution with the mingw compiler. (We use the mingw compiler to create the Windows binaries.) Go here:

wiki:v3:building_the_libpixyusb_example_on_linux

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

1.0. Introduction The libpixyusb2 library provides a software application programming interface (API) for communicating with Pixy2 over USB. This allows you to write software that interfaces with Pixy2 like the PixyMon application. The following procedure will outline the steps required for building the libpixyusb2 library and some example projects using the library. This procedure assumes the following:______

wiki:v3:building_the_libpixyusb_example_on_linux2

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

1. Introduction The libpixyusb2 library provides a software application programming interface (API) for communicating with Pixy2 over USB. This allows you to write software that interfaces with Pixy2 like the PixyMon application. The following procedure will outline the steps required for building the libpixyusb2 library and some example projects using the library. This procedure assumes the following:

wiki:v3:building_the_pan_tilt_1

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Assembling the pan/tilt Mechanism When combined with Pixy, the pan/tilt mechanism makes a fun demo — a good “hello world” for Pixy (no Arduino required). The pan/tilt mechanism comes in a kit and requires some assembly. Tools You will need the following (in addition to a Pixy and a pan/tilt kit):

wiki:v3:building_the_pan_tilt_2

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Assembling the pan/tilt Mechanism When combined with Pixy, the pan/tilt mechanism makes a fun demo — a good “hello world” for Pixy (no Arduino required). The pan/tilt mechanism comes in a kit and requires some assembly. Note: the servos in the pictures will look different than the ones in your kit. They are functionally identical, so please don't worry!

wiki:v3:button_program_selection

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Button program selection When Pixy2 powers up, it will always run the Default program, which is the program you specify with the Default program parameter, which can be found in the Expert tab in the Configure dialog. But you might want to tell Pixy to run different program upon power-up. If so, you can enable a simple query sequence upon power-up that will allow you to select a different program with some simple clicks of Pixy2's button.____

wiki:v3:camera_pane

Anonymous (anonymous@undisclosed.example.com) — 2018-09-21T01:22:19+0000

Camera tab This tab contains parameters for configuring how Pixy2 acquires images for processing. These parameters are considered to be “advanced”, so you should avoid changing them unless you have a good understanding of what they do! The Camera tab is present regardless of the program that is running on Pixy2. To bring up the Camera tab, first bring up the Configure Dialog (click on the gear icon or select

wiki:v3:can_i_replace_the_lens_on_pixy

Anonymous (anonymous@undisclosed.example.com) — 2021-05-19T21:02:55+0000

Can I replace the lens on Pixy2? It depends on which version of Pixy2 you have. Pixy 2.1 has a replaceable M12 lens, but Pixy 2.0 does not. You can use practically any M12 lens with Pixy 2.1 as long as it has an IR-cut filter. (The IR-cut filter is something all CMOS sensors need to eliminate most of the ambient IR light, which can adversely affect the color fidelity.) Pixy 2.1 ships with a 1.7mm focal lengh F2.0 lens, which gives it an 80-degree horizontal field of view.

wiki:v3:can_i_use_my_lego_pixy_with_arduino

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Can I use my LEGO Pixy with Arduino? You can! You just need to use the “general” version of the firmware, and you need to get an Arduino cable. We hope to have these available for sale separately soon, but in the meantime you can make one. Changing the firmware

wiki:v3:can_i_use_my_regular_pixy_with_lego_mindstorms

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Can I use my regular Pixy with LEGO Mindstorms? We released Pixy for LEGO Mindstorms in September 2015, which comes with custom LEGO-compatible firmware and a special cable for plugging Pixy into your LEGO brick. But if you already own a Pixy, you should follow the guide

wiki:v3:can_pixy_do_face_tracking_face_detection_or_facial_recognition

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Can Pixy do face tracking face detection or facial recognition? Unfortunately not. It is our most-requested feature, and we have experimented with several algorithms, including Viola-Jones but due to memory constraints on the Pixy platform, we were unable to achieve satisfactory results. Currently, face detection is not in active development. Sorry :(

wiki:v3:ccc_action_menu

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Color connected components Action menu This menu contains all of the actions available for the color connected components program, which mostly has to do with setting color signatures. To bring up this menu, you must be running the color_connected_components

wiki:v3:ccc_api

Anonymous (anonymous@undisclosed.example.com) — 2018-09-28T19:49:23+0000

Color Connected Components API This API can be called through the ccc member of the Pixy2 object, for example: Pixy2 pixy; pixy.ccc.getBlocks(); Firmware versions 3.0.11 and greater will automatically switch to the color_connected_components program when making requests through the color connected components __

wiki:v3:ccc_expert

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Color connected components Expert tab This tab contains more advanced parameters for adjusting various color connected components things. To bring up this tab, you must be running the color_connected_components program by selecting it in the Program menu, and then bringing up the Configure Dialog (click on the gear icon

wiki:v3:ccc_expert_common

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

* Block filtering: Increasing this parameter increases the amount of filtering Pixy2 applies to the detection of each block. Increasing this parameter can reduce the false positive detections, but will also increase the amount of time it takes between the object appearing in the frame and it being reported by Pixy2.

wiki:v3:ccc_pixymon

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Color connected components program This program is a hue-based object detection algorithm. More information about the CCC program can be found here. Color connected components Action menu This menu contains all of the actions available for the color connected components program, which mostly has to do with setting color signatures. To bring up this menu, you must be running the __________

wiki:v3:ccc_tuning

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Color connected components Tuning tab This tab contains all of the most effective parameters for “tuning” the accuracy of color signatures. To bring up this tab, you must be running the color_connected_components program by selecting it in the Program

wiki:v3:ccc_view_menu

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Color connected components View menu This menu contains the different views available in PixyMon for the color connected components program. To bring up this menu, you must be running the color_connected_components program by selecting it in the Program

wiki:v3:color_connected_components

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Color Connected Components Purple dinosaurs (and other things) Pixy2 uses a color-based filtering algorithm to detect objects called the Color Connected Components (CCC) algorithm. Color-based filtering methods are popular because they are fast, efficient, and relatively robust. Most of us are familiar with RGB (red, green, and blue) to represent colors. Pixy2 calculates the color (hue) and saturation of each RGB pixel from the image sensor and uses these as the primary filtering parameters. T…

wiki:v3:configuration_parameters

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Pixymon Configuration Parameters * Max blocks * Sets the maximum total blocks sent per frame. * default: 1000 * Max blocks per signature * Sets the maximum blocks for each color signature sent for each frame. * default: 1000 * Min block area

wiki:v3:configure_dialog

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Configure dialog Clicking on the gear icon in the toolbar or selecting Configure in the File menu brings up the configure dialog. Tuning and Expert tabs The configure dialog changes dynamically based on which program is currently running on Pixy2, but mostly the

wiki:v3:diy_lego_cable

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

LEGO cable for Pixy You can order a cable through some of our distributors. Notably, Robotshop is selling them here. Making your own LEGO cable requires a few parts. It's recommended that you use a 10-pin IDC connector, like this, which is already crimped with a ribbon cable, or

wiki:v3:documents_directory

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Documents directory The documents directory is where PixyMon saves grabbed images as well as its configuration (config.xml). This directory is located in slightly different locations depending on which OS you are using. You can locate this directory or change it by referring to the

wiki:v3:expert_pane

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Expert Tab This tab contains more advanced parameters for adjusting various Pixy things. To bring up the Expert Tab, first bring up the Configure Dialog (click on the gear icon or select File➜Configure). Now select the Expert tab under Pixy Parameters

wiki:v3:expert_tab_common

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

* Default program: This parameter shows up in all Expert tabs regardless of the program that's currently running. It sets the program that gets executed upon power-up. The available programs are listed in the pulldown menu. * Program select on power-up:

wiki:v3:full_api

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Pixy2 Full API This page contains all of Pixy2's functionality available through the serial interfaces. Pixy2 General API Pixy2's general API can be called through the base Pixy2 object, for example: Pixy2 pixy; pixy.init(); // call init() member function ________________________________________________________________

wiki:v3:general_api

Anonymous (anonymous@undisclosed.example.com) — 2018-09-26T19:07:07+0000

Pixy2 General API Pixy2's general API can be called through the base Pixy2 object, for example: Pixy2 pixy; pixy.init(); // call init() member function Member functions int8_t init(uint32_t arg [optional]) init() should be called before your program communicates with Pixy. init() returns an _________________

wiki:v3:hooking_up_pixy_to_a_beaglebone_black

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Hooking up Pixy to a Beaglebone Black 1. Introduction The following procedure outlines steps to build the 'hellopixy' example on a BeagleBone Black using the Debian Linux Distribution (Debian Image 2014-05-14). The 'hellopixy' example is a simple program that demonstrates how to read blocks and send commands to the Pixy over USB like the PixyMon application.

wiki:v3:hooking_up_pixy_to_a_microcontroller_-28like_an_arduino-29

Anonymous (anonymous@undisclosed.example.com) — 2018-09-26T23:40:35+0000

Hooking up Pixy to a Microcontroller (like an Arduino) Pixy is meant to talk to a microcontroller. Out of the box, Pixy2 is ready to talk to an Arduino. It sends block information to Arduino at 1 Mbits/second, which means Pixy can send more than 6000 detected objects per second or 100 detected objects per frame (Pixy can process 60 frames per second.)_______

wiki:v3:hooking_up_pixy_to_a_net_gadgeteer

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Hooking up Pixy to a .NET Gadgeteer You'll need to cut the Arduino cable that comes with Pixy, and the Gadgeteer SPI cable, and connect (preferably solder) them together. Here's the port pinouts and instructions to help you do so, thanks to Pixy user @stuincanada (Twitter).

wiki:v3:hooking_up_pixy_to_a_raspberry_pi

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Hooking up Pixy2 to a Raspberry Pi Hooking up Pixy2 to your Raspberry Pi requires a software library called libpixyusb2. The libpixyusb2 library provides a software application programming interface (API) for communicating with Pixy2 over USB. This allows you to write software that interfaces with Pixy2 like the PixyMon application.______

wiki:v3:hooking_up_pixy_to_a_raspberry_pi2

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

1. Introduction The following procedure outlines the steps required to build the 'hello_pixy' example on a Raspberry Pi using the Raspberrian disribution. The 'hello_pixy' example is a simple program that demonstrates how to read blocks and send commands to the Pixy over USB like PixyMon.

wiki:v3:hooking_up_pixy_to_lego

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Hooking up Pixy to your LEGO brick The LEGO version of Pixy comes out of the box ready to talk to your LEGO NXT or EV3 brick. To get Pixy and your LEGO brick talking to each other, use the supplied cable to connect the two. Use the pictures below as a guide.

wiki:v3:hooking_up_pixy_to_lego_mindstorms

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Hooking up Pixy to LEGO Mindstorms If you have Pixy for LEGO Pixy for LEGO comes with a special Pixy-to-LEGO cable and is preloaded with a version of the firmware that speaks the LEGO protocol by default. If you have Pixy for LEGO, just follow our

wiki:v3:how_to_grab_a_frame

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Grab and Save a Frame in PixyMon Grabbing and saving a video frame in PixyMon is straightforward. Just select File➜Save Image. That's it -- the saved image will then be saved in the documents directory. You can choose to press the stop button if you wish, or you just grab/save the image frame on-the-fly.

wiki:v3:how_to_saverestore_pixy_parameters

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

Save/load/restore Pixy2's parameters Pixy2 stores several parameters such as the color signatures, signature ranges, servo limits, data out port, UART baudrate, etc. in flash memory so they can be recalled and used for subsequent power cycles. You can save these parameters on your computer and reload them onto your Pixy2 later, or even copy them onto another Pixy2.

wiki:v3:i_don-27t_see_any_video_when_i_run_pixymon

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

I don't see any video when I run PixyMon 1. Is the lens cap still on? I know, it's almost a joke, but it happens... 2. It's normal not to see video in PixyMon When you run PixyMon, the first screen you see will be black. And you might see some white rectangles with labels. This is called the

wiki:v3:i_don-27t_see_my_controller_supported_what_do_i_do

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

I don't see my controller supported. What do I do? We currently have software support for Arduino, LEGO Mindstorms EV3, roboRIO, and Raspberry Pi and similar controllers. You may want Pixy2 to talk to a different controller and that's not a problem -- Pixy2 is easy to strike up a conversation with! It's easier than the original Pixy. Pixy2 has three separate methods of communication:_______________

wiki:v3:i_get_the_message_-22no_pixy_devices_have_been_detected-22_in_pixymon

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:34+0000

I get the message "No Pixy devices have been detected" in PixyMon If you've installed PixyMon on your computer and get this message when you plug Pixy into the USB port, follow these steps. 1. Do you have another USB cable you can try? Bad USB cables are a common problem.

wiki:v3:info_for_lego_ftc__frc_teams

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Info for Lego FTC FRC Teams While we don't yet provide official support for Lego FTC / FRC controllers, the Pixy appears to be legal in these competitions. User-created Pixy FTC Firmware is Here - FTC App with Pixy Driver is Here - Also Includes an Arduino Test App as Proof of Concept.

wiki:v3:install_pixymon_on_mac

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Installing PixyMon on Mac You will need a USB micro cable for your computer to talk to Pixy2. This cable is included with Pixy2. Download the latest PixyMon version here. Once you have downloaded the file, use the Finder to browse to the download directory and double-click on the DMG file.

wiki:v3:install_pixymon_on_windows_vista_7_8

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Installing PixyMon on Windows Vista, 7, 8, or 10 You will need a USB micro cable for your computer to talk to Pixy2. This cable is included with Pixy2. Download the latest PixyMon version here. and run the installer. Don't plug in your Pixy into your computer yet though.

wiki:v3:install_pixymon_on_windows_xp

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Installing PixyMon on Windows XP You will need a USB micro cable for your computer to talk to Pixy2. This cable is included with Pixy2. Download the latest PixyMon version here. and run the installer. Don't plug in your Pixy into your computer yet though. When installing PixyMon on a Windows XP machine, installation proceeds as expected and finishes.

wiki:v3:installing_pixymon_on_linux

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Installing PixyMon on Linux 1. Introduction The following procedure will walk you through building PixyMon for Linux. This procedure assumes the following: * Your system has Linux Mint installed * Pixy firmware has been updated to 1.0.2 * Your system is connected to the internet

wiki:v3:installing_pixymon_on_mac_2

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Installing PixyMon on Mac You will need a USB mini cable for your computer to talk to Pixy. This cable isn't included with Pixy. :( Download the latest PixyMon version here. Once you have downloaded the file, use the Finder to browse to the download folder and double-click on the DMG file.

wiki:v3:installing_pixymon_on_windows_vista_7_or_8

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Installing PixyMon on Windows Vista, 7, 8, or 10 You will need a USB mini cable for your computer to talk to Pixy. Download the latest PixyMon version here. and run the installer. Don't plug in your Pixy into your computer yet though. When installing PixyMon on a Windows Vista, 7, or 8 machine, installation will proceed as expected, until you get to the driver pre-installation. You will then get a dialog that basically says that it will take a long time for the drivers to install. Click

wiki:v3:interface_pane

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Interface tab This tab contains parameters for configuring how Pixy2 communicates its results (what it senses) to the world. Pixy2 uses one of several interfaces to do this -- UART, SPI, I2C, USB and analog/digital output. The Interface tab is present regardless of the program that is being run on Pixy2. To bring up the Interface tab, first bring up the Configure Dialog (click on the gear icon or select __

wiki:v3:introduction_and_background

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Introducing Pixy * Small, fast, easy-to-use, low-cost, readily-available vision system * Learns to detect objects that you teach it * Outputs what it detects 50 times per second * Connects to Arduino with included cable. Also works with Raspberry Pi, BeagleBone and similar controllers

wiki:v3:is_there_a_case_or_enclosure_for_pixy

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Is there a case or enclosure for Pixy? While we don't provide an official enclosure for Pixy, there is this GoPro-compatible 3D-printable version on Thingiverse. And now this Lego-compatible version, also on Thingiverse.

wiki:v3:latest_developments

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Latest Developments Here's a list of the latest goings-on regarding software, firmware and docs. You can check back here every now and then to see what developments you've missed. June 6, 2014 Added support for interfacing with an Arduino DUE over SPI._

wiki:v3:latest_release

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

For the latest Pixy2 downloads, go here.

wiki:v3:latest_release_2

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

The Latest Pixy Stuff This page has links to the latest and greatest software/firmware releases for Pixy. Previous releases can be found here. PixyMon PixyMon is the configuration utility for Pixy that runs on Windows, MacOS and Linux. * Windows version 2.0.8 is

wiki:v3:lego_chase_demo

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

LEGO Chase Demo This page describes how to make a LEGO robot that chases things, like a ball. It's the same robot and program that's used in the Pixy LEGO video. This robot and program is a good launching point for other projects, and it's a good introduction to PID control, which is used throughout robotics and engineering in general.

wiki:v3:lego_software_modules

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

LEGO software blocks There are currently two LEGO Mindstorms blocks in the Pixy LEGO release * Pixy block * Pixy PID block

wiki:v3:lego_wiki

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

CMUcam5 Pixy for LEGO Mindstorms Quick Links Essentials * Quick Start * Introduction and Background * Installing PixyMon on Mac * Installing PixyMon on Windows Vista, 7, or 8 * Installing PixyMon on Windows XP * Installing PixyMon on Linux * Teaching Pixy an object * Uploading New Firmware * How to Mount Pixy to Your LEGO Creation Troubleshooting Guide * I get the message "No Pixy devices have been detected" in PixyMon * I don't see any video when I run PixyMon * Pixy is detec…

wiki:v3:line_api

Anonymous (anonymous@undisclosed.example.com) — 2018-09-21T16:22:06+0000

Line tracking API This API can be called through the line member of the Pixy2 object, for example: Pixy2 pixy; pixy.line.getMainFeatures(); Firmware versions 3.0.11 and greater will automatically switch to the line_tracking program when making requests through the line tracking _______________________________________

wiki:v3:line_expert

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Line tracking Expert tab This tab contains more advanced parameters for adjusting various line tracking things. To bring up this tab, you must be running the line_tracking program by selecting it in the Program menu, and then bringing up the Configure Dialog (click on the gear icon

wiki:v3:line_pixymon

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Line tracking program This program performs line tracking and is intended for robots that follow lines. More information about this algorithm can be found here. Line tracking View menu This menu contains the different views available in PixyMon for the line tracking program. To bring up this menu, you must be running the ____

wiki:v3:line_quickstart

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Line tracking quickstart This guide will help you get started with the line tracking algorithm on the Pixy2. Running line tracking through PixyMon PixyMon will display what Pixy2 detects graphically and is a good way to familiarize yourself with what the line tracking algorithm is capable of, and it's a good way to make adjustments. Start by selecting the line tracking algorithm in the ___

wiki:v3:line_tracking

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Line tracking for line-following Pixy2 has added the ability to detect and track lines. Line-following is a popular robotics demo/application because it is relatively simple to implement and gives a robot simple navigation abilities. Most line-following robots use discrete photosensors to distinguish between the line and the background. This method can be effective, but it tends to work best with only thick lines, and the sensing is localized making it difficult for the robot to predict the …

wiki:v3:line_tuning

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Line tracking Tuning tab This tab contains all of the most effective parameters for “tuning” the accuracy of the line tracking algorithm. To bring up this tab, you must be running the line_tracking program by selecting it in the Program menu, and then bringing up the Configure Dialog (click on the gear icon

wiki:v3:line_view_menu

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Line tracking View menu This menu contains the different views available in PixyMon for the line tracking program. To bring up this menu, you must be running the line_tracking program by selecting it in the Program menu, and then clicking on the View

wiki:v3:mounting_pixy

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Mounting Pixy2 Pixy2 was designed to befriend your robot or any other device you've dreamed up. So, with each Pixy2 we include brackets and fasteners to make mounting Pixy2 to your device fairly simple. Here's what you'll need: A small phillips screwdriver

wiki:v3:mounting_pixy_with_lego

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Mounting Pixy to your LEGO creation This guide is intended fo those who purchased Pixy for LEGO. The hardware bag that comes with Pixy for LEGO is slightly different, so you may have problems with this guide if you purchased a regular Pixy. You'll need the following tools and parts (in addition to your Pixy for LEGO):

wiki:v3:my_arduino_isn-27t_receiving_data_from_pixy

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

My Arduino isn't receiving data from Pixy 1. Check the Arduino cable. Make sure the Arduino cable is plugged into the ICSP connector on your Arduino correctly. It's possible to plug in the cable backwards and/or shifted over forward/backward or left/right. Make sure the cable is plugged in as shown in the picture below. .__

wiki:v3:my_pantilt_is_acting_sort_of_crazy

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

My pan-tilt is acting sort of crazy The pan-tilt mechanism should track objects smoothly. If it doesn't, here are a few things to try/check. 1. How are you powering Pixy? If you are powering Pixy through the Arduino cable instead of through the USB cable, or the

wiki:v3:nav

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

* Where can I buy Pixy2? * How do I teach Pixy2 an object? * How can I tweak / improve Pixy2's object recognition? * What is the maximum distance that Pixy2 can detect objects? * Does Pixy2 track/sense laser light? * I don't see my controller supported. What do I do? * Where's the source code? * What licensing does Pixy2's software/firmware/hardware have? * Where can I find the latest PixyMon, firmware, Arduino libraries, libpixyusb2, etc? * What kind of projects can I use Pi…

wiki:v3:new_toc

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

CMUcam5 Pixy Latest Developments Quick Links Essentials * Introduction and Background * Quick Start * Installing PixyMon on Mac * Installing PixyMon on Windows Vista, 7, or 8 * Installing PixyMon on Windows XP * Installing PixyMon on Linux * Teaching Pixy an object * Hooking up Pixy to a Microcontroller (like an Arduino) * Hooking up Pixy to a Raspberry Pi * Hooking up Pixy to a Beaglebone Black * Uploading New Firmware * Ideas on How to Mount Pixy on Your Invention Thing * Po…

wiki:v3:overlay

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Pixy2 Quick Start * Start here if you just received your Pixy2 or Pixy2 pan-tilt Overview * What is Pixy2? FAQ * Where can I buy Pixy2? * How do I teach Pixy2 an object? * How can I tweak / improve Pixy2's object recognition? * What is the maximum distance that Pixy2 can detect objects? * Does Pixy2 track/sense laser light? * I don't see my controller supported. What do I do? * Where's the source code? * What licensing does Pixy2's software/firmware/hardware have? * Where c…

wiki:v3:overview

Anonymous (anonymous@undisclosed.example.com) — 2021-05-19T21:05:18+0000

Pixy2 Overview Pixy2 is the second version of Pixy. It's faster, smaller and more capable than the original Pixy, adding line tracking/following algorithms as well as other features. Here's what we've added to Pixy2: * Pixy2 detects lines, intersections and small barcodes, intended for line-following robots

wiki:v3:pan_tilt_demo

Anonymous (anonymous@undisclosed.example.com) — 2018-09-21T21:28:55+0000

Pan-tilt demo The pan-tilt demo is a program that tests the functionality of the pan-tilt unit. Running the Pan-tilt Demo OK, you've assembled the pan-tilt mechanism and it looks cool, but it would look even cooler if it moved. One nice thing is that you don't need a battery to move the pan-tilt ___________

wiki:v3:pan_tilt_demo_pixymon

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Pan-tilt demo program This program demonstrates the pan-tilt unit. More information about the pan-tilt demo can be found here. Pan-tilt demo Tuning tab This tab contains all of the most effective parameters for “tuning” the pan-tilt demo. To bring up this tab, you must be running the ____

wiki:v3:pantilt_demo_pane

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Pan/tilt Demo Tab This tab contains parameters to adjust parameters associated with the pan/tilt demo, such as the PID gains for each axis. To bring up the Pan/tilt Demo Tab, first bring up the Configure Dialog (click on the gear icon or select File➜Configure

wiki:v3:pid_lego_block

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Pixy LEGO PID Block The Pixy PID block allows you to implement a simple PID controller. Proportional Integral Derivative (PID) controllers are commonly used in feedback control systems. There is a feedback controller in your home’s thermostat and your car’s cruise control. The basic idea is you measure, then compare with a setpoint (the “goal”), then calculate how you should act so that the system reaches the goal. For example, your home’s thermostat first measures the temperature, then compare…

wiki:v3:pixy_is_detecting_the_wrong_objects

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:33+0000

Pixy is detecting the wrong objects Pixy2's color filtering algorithm can process an entire frame in 16.7 ms (60 times a second). But discrimination can sometimes be a problem -- false positives and false negatives. False positives are when Pixy2 thinks an object matches a particular signature, but it's not the object you want to detect. It's often an object with a similar hue. For example, Pixy2 thinks your light green shirt matches a green ball. False negatives are when Pixy2 fails to detect …

wiki:v3:pixy_isn-27t_detecting_the_objects_i_taught_it

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Pixy isn't detecting the objects I taught it Generating color signatures requires some finesse in some situations. Pixy2's color filtering algorithm can process an entire frame in 16.7 ms (60 times a second). But discrimination can sometimes be a problem

wiki:v3:pixy_lego_block

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Pixy LEGO Block This page describes the LEGO Pixy block, which is used in the LEGO Mindstorms EV3 Software. Check out the Pixy LEGO Quick Start page for info on how to install the Pixy module in Mindstorms. The Pixy block appears below, with labels showing the different inputs and outputs:

wiki:v3:pixy_lego_quick_start

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

LEGO Pixy Quick Start This guide will get you up an running quickly with Pixy and LEGO Mindstorms. You must have a LEGO Mindstorms EV3 or NXT brick with a fresh set of batteries. We try to be as detailed as possible in this guide, but it helps if you are somewhat familiar how to use your LEGO Mindstorms system.

wiki:v3:pixy_quick_start

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Pixy Quick Start Install PixyMon If you're just getting started with Pixy, you should install PixyMon first. It will allow you to configure Pixy and see what it sees. Choose your platform below: * PixyMon on Mac * PixyMon on Windows Vista, 7, or 8 * PixyMon on Windows XP * PixyMon on Linux Teach Pixy After you install PixyMon and get it running, the next step is to

wiki:v3:pixy_regular_quick_start

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Pixy2 and Pan-tilt Quick Start Thanks so much for supporting the CMUcam5 Pixy project! First things first, we will be releasing cool stuff in the future, so please sign up for our mailing list so you don't miss out on the latest developments! OK, let's get started... Install PixyMon

wiki:v3:pixy_serial_protocol

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Pixy Serial Protocol Pixy will output objects that it detects through one of several interfaces that you choose, and it will do this every 20 ms. It supports SPI, I2C, UART, and analog/digital I/O through its 10-pin I/O connector. Pixy also supports USB 2.0 through its mini-USB connector. You can configure which interface Pixy uses through the configure dialog in PixyMon. The

wiki:v3:pixy_zumo_howto

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Making a Pixy2 Mobile Robot The robot in the Pixy2 video is something you can assemble yourself with some additional robot parts. It makes a fun little robot that is capable of useful tasks, such as, uh, chasing things and following lines. Its controller is a standard Arduino. And since it's an Arduino, you can easily modify our examples to make the robot do whatever you want. ________________

wiki:v3:pixymon_configuration_parameters

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

wiki:v3:pixymon_help

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

PixyMon Help PixyMon * PixyMon Overview * Action Menu * Configure Dialog * PixyMon Tab * Signature Tuning Tab * Signature Labels Tab * Expert Tab * Blocks Tab * Interface Tab * Camera Tab * Servo Tab * Pan/tilt Demo Tab * Grab and Save a Frame * Save/Load Pixy's Parameters * Uploading new Firmware For more additional information on Pixy, please go here.

wiki:v3:pixymon_index

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

PixyMon v2 Reference PixyMon v2 is an application that allows you to configure Pixy2 and see what it sees. It runs on several different platforms including Windows, MacOS and Linux, as well as other smaller embedded systems like Raspberry Pi and BeagleBone Black.________________________

wiki:v3:pixymon_is_crashing-21

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

PixyMon is crashing! This has only been reported by Mac users. There may be an OSX version problem/incompatibility with the binaries we're building. We avoid this problem in Linux and its many versions and distributions by not distributing PixyMon in binary form.

wiki:v3:pixymon_overview

Anonymous (anonymous@undisclosed.example.com) — 2018-09-21T01:18:32+0000

PixyMon v2 Overview PixyMon v2 is an application that allows you to configure Pixy2 and see what it sees. It runs on several different platforms including Windows, MacOS and Linux, as well as other smaller embedded systems like Raspberry Pi and BeagleBone Black.

wiki:v3:pixymon_pane

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

PixyMon parameters tab This tab contains parameters for configuring various PixyMon related features. To bring up the Interface Tab, first bring up the Configure Dialog (click on the gear icon or select File➜Configure). Now select the PixyMon Parameters

wiki:v3:port_pinouts

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Port Pinouts Be sure to check out the different ways to communicate with Pixy2 as well is the different ways to power Pixy2.

wiki:v3:porting_guide

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

How to talk to Pixy2 We currently have software support for Arduino, and Raspberry Pi and similar controllers You may want Pixy2 to talk to a different controller and that's not a problem -- Pixy2 is easy to strike up a conversation with! It's easier than the original Pixy. Pixy2 has three separate methods of communication:_______________

wiki:v3:powering_pixy

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Powering Pixy2 You have some choices when powering Pixy2... always good to have choices! We expect that most Pixy2 users will either power Pixy2 through the USB cable/connector or though the Arduino cable (I/O connector). These two choices are the simplest, but here are all available power options:

wiki:v3:programs

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Pixy's Programs Pixy2 relies more heavily on programs to determine what it's up to. Do you want Pixy to detect objects, track lines, or show raw video? You can set the program from Pixymon by selecting the program in the Program menu.

wiki:v3:pt_expert

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Pan-tilt demo Expert tab This tab contains more advanced parameters for adjusting various pan-tilt demo things. To bring up this tab, you must be running the pan_tilt_demo program by selecting it in the Program menu, and then bringing up the Configure Dialog (click on the gear icon

wiki:v3:pt_tuning

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Pan-tilt demo Tuning tab This tab contains all of the most effective parameters for “tuning” the pan-tilt demo. To bring up this tab, you must be running the pan_tilt_demo program by selecting it in the Program menu, and then bringing up the Configure Dialog (click on the gear icon

wiki:v3:quick_start

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Quick Start Thanks so much for supporting the CMUcam5 Pixy project! First things first, we will be releasing cool stuff in the future, so please sign up for our mailing list so you don't miss out on the latest developments! Click here for regular Pixy (for Arduino etc.) and Pixy Pan/tilt Unit. Thanks again for your support!

wiki:v3:quick_start2

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Quick Start Thanks so much for supporting the CMUcam5 Pixy project! First things first, we will be releasing really cool stuff in the near future, so please sign up for our mailing list so you don't miss out on the latest developments! Did you receive regular Pixy or Pixy for LEGO Mindstorms

wiki:v3:roborio

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

RoboRIO While we don't yet offer official library support for RoboRIO, Pixy user Liam Kinne has ported the I2C communications library to RoboRIO! Check it out here:

wiki:v3:run_the_pantilt_demo

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Running the Pan-tilt Demo OK, you've assembled the pan-tilt mechanism and it looks cool, but it would look even cooler if it moved. One nice thing is that you don't need a battery to move the pan-tilt -- the pan-tilt can use the USB cable for power. The USB cable that came with your Pixy2 is recommended___________

wiki:v3:servo_pane

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Servo tab This tab contains parameters for configuring the two RC-servo ports on Pixy2. The port pinouts, as well as which port is which can be found here. The Servo tab is present regardless of the program that's running on Pixy2. To bring up the Servo tab, first bring up the Configure Dialog (click on the gear icon or select ____

wiki:v3:sidebar

Anonymous (anonymous@undisclosed.example.com) — 2018-09-28T19:51:01+0000

Pixy2 Quick Links * Pixy2 Index * Where can I buy Pixy2? Basics * Quick-Start Guide * Teach Pixy an object * Tweak / improve Pixy's object recognition Connecting Pixy2 to... * Arduino * Raspberry Pi * BeagleBone Black * Other devices - porting guide (I2C, SPI, UART, etc) * Assembling the Pan-tilt Mechanism * Running the Pan-tilt Demo * Other connections... Pixy2 Modes / Programs * Color Connected Components * Line Tracking * Line tracking quickstart * Pan-t…

wiki:v3:signature_labels_pane

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Signature Labels tab The Signature Labels tab allows you to label objects that are detected by Pixy2. To bring up this tab, you must be running the color_connected_components program by selecting it in the Program menu, and then bringing up the Configure Dialog (click on the gear icon or select

wiki:v3:signature_labels_tab

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Signature Labels Tab The Signature Labels Tab allows you to label objects that are detected by Pixy. This feature only works within PixyMon when in Default and Cooked modes. Note also that the signature labels are stored on Pixy. So if you set some signature labels and then plug your Pixy into another computer running PixyMon, the labels will be there.

wiki:v3:signature_tuning_common_tab

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

* Signature ranges: Signature range tuning is probably the most effective method to improve detection accuracy. Each color signature (1 through 7) has a slider to adjust the inclusiveness of the corresponding signature. Slide the slider to the left if you want the signature to be less inclusive (you're seeing false positives) or slide it to the right if you want the signature to be more inclusive (you're getting false negatives.) There is more information

wiki:v3:signature_tuning_pane

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Signature Tuning Tab This tab contains all of the most effective parameters for “tuning” the accuracy of color signatures. To bring up the Signature Tuning Tab, first bring up the Configure Dialog (click on the gear icon or select File➜Configure

wiki:v3:some_tips_on_generating_color_signatures_2

Anonymous (anonymous@undisclosed.example.com) — 2018-09-27T17:01:43+0000

Some Tips on Improving Detection Accuracy Pixy2's color filtering algorithm can process an entire frame in 16.7 ms (60 times a second). But discrimination can sometimes be a problem -- false positives and false negatives. False positives are when Pixy2 thinks an object matches a particular signature, but it's not the object you want to detect. It's often an object with a similar hue. For example, Pixy2 thinks your light green shirt matches a green ball. False negatives are when Pixy2 fails to d…

wiki:v3:start

Anonymous (anonymous@undisclosed.example.com) — 2018-09-21T15:08:46+0000

+ Pixy2 Index Quick Start * Start here if you just received your Pixy2 or Pixy2 pan-tilt Overview * What is Pixy2? FAQ * Where can I buy Pixy2? * How do I teach Pixy2 an object? * How can I tweak / improve Pixy2's object recognition? * What is the maximum distance that Pixy2 can detect objects? * Can I replace the lens on Pixy2? * Does Pixy2 track/sense laser light? * I don't see my controller supported. What do I do? * Where's the source code? * What licensing does Pixy2's s…

wiki:v3:teach_pixy_an_object

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Teach Pixy an Object Teaching Pixy an object is super easy, but first let's talk about which objects will work well with Pixy. Pixy uses a hue-based color filtering algorithm to detect objects. Since Pixy uses hue (color), the object needs to have a distinct hue. Here are some objects that are good because they have good, distinct hues.

wiki:v3:teach_pixy_an_object_2

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Teach Pixy2 an Object Teaching Pixy2 an object is super easy, but first let's talk about which objects will work well with Pixy2. Pixy2 uses a hue-based color filtering algorithm to detect objects. Since Pixy2 uses hue (color), the object needs to have a distinct hue. Here are some objects that are good because they have good, distinct hues.

wiki:v3:temp_jump_page

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

Temp jump page new toc Teach Pixy an Object 2 Some Tips on Generating Color Signatures 2 Installing PixyMon on Mac 2 Installing PixyMon on Windows Vista, 7, or 8 Hooking up Pixy to a Microcontroller (like an Arduino) PixyMon Help PixyMon Overview Documents directory Configure Dialog PixyMon Pane Signature Tuning Pane Expert Pane Blocks Pane Interface Pane Camera Pane Servo Pane Pan/tilt Demo Pane PixyMon Pane Action Menu How to Grab a Frame How to Save/Restore Pixy Paramete…

wiki:v3:the_image_in_pixymon_is_out_of_focus

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:32+0000

The image in PixyMon is out of focus You can focus Pixy by turning the lens clockwise or counter-clockwise. Do this while looking at the PixyMon window in “Raw” mode (click on the Raw icon). If turning the lens is difficult, you may need to loosen the set screw.

wiki:v3:tuning_common_tab

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:31+0000

* Camera brightness: This parameter is in all Tuning tabs regardless of the program that's being run. It sets the exposure setting of Pixy, which controls the brightness of the image. The Camera Brightness setting is important because the correct exposure setting will lead to the best detection accuracy.

wiki:v3:uploading_new_firmware

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:31+0000

Uploading new firmware Pixy2 uses a ROM-based algorithm to upload new firmware into flash memory over USB, which makes Pixy2 “unbrickable” - that is, you will always be able to recover Pixy2 from an unsuccessful firmware upload or a “bad” version of firmware.

wiki:v3:using_color_codes

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:31+0000

Using Color Codes Introduction So, what’s a “color code”? A color code (CC) is two or more color tags placed close together. Pixy2 can detect and decode CCs and present them as detected objects. For example, using 2-tag CCs (like the photo above) and limiting yourself to a palette of 4 colors (i.e. teaching Pixy2 4 different color signatures), you can generate up to 12 unique objects. 3, 4, and 5-tag CCs with more / different colors allow for many, many more unique objects. Pixy2 will detec…

wiki:v3:video

Anonymous (anonymous@undisclosed.example.com) — 2018-09-21T21:29:28+0000

Video The video program displays video -- simple! It can also be used to get red, green and blue pixel values of specified locations within the video images. Check out the video API for more details. We noticed that several Pixy1 users were using Pixy to just sense color values, but using the color connected components algorithm to do so. To make these kinds of color sensing applications easier (we're talking to you, Rubik's cube solvers!), we added the

wiki:v3:video_expert

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:31+0000

Video Expert tab This tab (for now) doesn't contain much. In subsequent versions it may contain more advanced parameters for adjusting various video things. To bring up this tab, you must be running the video program by clicking on the Raw video icon

wiki:v3:video_pixymon

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:31+0000

Video program The video program displays video -- simple! It can also be used to get red, green and blue pixel values of specified locations within the video images. Check out the video API for more details. We noticed that several Pixy1 users were using Pixy to just sense color values, but using the color connected components algorithm to do so. To make these kinds of color sensing applications easier (we're talking to you, Rubik's cube solvers!), we added the

wiki:v3:video_tuning

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:31+0000

Video Tuning tab This tab contains all of the most effective parameters for “tuning” the video. To bring up this tab, you must be running the video program by clicking on the Raw video icon in the toolbar, or selecting it in the Program menu, and then bringing up the Configure Dialog (click on the gear icon

wiki:v3:what_about_raspberry_pi_support

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:31+0000

What about Raspberry Pi support? It appears that Qt is ported for Raspberry Pi. We haven't played with it, but we assume it works well enough to run PixyMon (which isn't a complex Qt program). Libusb certainly works on Raspberry Pi -- so our guess is it would be an easy recompile. Maybe someone could shed more light on this, but we're thinking it'll be easy to get working, especially once Linux support is released.

wiki:v3:what_is_the_maximum_distance_that_pixy_can_detect_objects

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

What is the maximum distance that Pixy2 can detect objects? Pixy2 can detect an object that is miles away as long as the object is large enough. Described another way -- Pixy2 will detect an object that's as small as 4×1 pixels in the image. This means it can detect a ping-pong ball sized object at 10 feet.

wiki:v3:what_licensing_does_pixy-27s_firmwaresoftwarehardware_have

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

What licensing does Pixy2's software/firmware/hardware have? Pixy2's software and firmware is fully open-source and under a GPL license. Those who want different licensing terms should contact us. Pixy2's hardware is open as well. You can find schematics and other documents

wiki:v3:where-27s_the_source_code

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Where's the source code? GitHub is hosting all of our software and firmware for Pixy2 here:

wiki:v3:where_can_i_buy_pixy

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Where can I buy Pixy? Pixy is available through Charmed Labs and several distributors.

wiki:v3:where_to_get_help

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Where to Get Help * If you're having trouble of any sort (i.e. “my Pixy doesn't work!”), please email and we'll get you sorted out! * If you have questions, check out our forums to see if your question has already been answered. If not, you're welcome to post a message. Suggestions and feature requests are totally welcome here too!

wiki:v3:wiki

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

CMUcam5 Pixy Note, if you are using Pixy for LEGO Mindstorms, the Pixy LEGO Wiki is tailored to your needs. Quick Start * Start here if you just received your Pixy FAQ * Where can I buy Pixy? * How do I teach Pixy an object? * How can I tweak / improve Pixy's object recognition? * What is the maximum distance that Pixy can detect objects? * Can I replace the lens on Pixy? * Does Pixy track/sense laser light? * Does Pixy track/sense IR light? * Can Pixy do face tracking, face dete…

wiki:v3:will_pixy_tracksense_ir_light

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Will Pixy track/sense IR light? Pixy ships with a lens with an IR-cut filter because infrared light interferes with the color response, but Pixy's image sensor is quite responsive to infrared light. Replacing the IR-cut lens is quite easy, so the answer is yes, Pixy can track and sense IR light.

wiki:v3:will_pixy_tracksense_laser_light

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Will Pixy2 tracksense laser light? Yes! Here's a video: An important detail is to set the Camera Brightness parameter in the Tuning tab to a low value, because the laser light will tend to be overexposed and appear white. You need to adjust the Camera Brightness

wiki:v3:will_there_be_support_for_linux

Anonymous (anonymous@undisclosed.example.com) — 2018-09-19T21:05:35+0000

Will there be support for Linux? Yes! In fact, we have this working as of April 3, 2014 and are working on fixing a few issues and getting it released.