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--- wiki:v2:run_the_pantilt_demo [2018/05/16 16:12]
pixycam [Running the Pan-tilt Demo]
+++ wiki:v2:run_the_pantilt_demo [2018/05/18 15:36]
pixycam [Running the Pan-tilt Demo]
@@ Line 5: / Line 5: @@
 ====== Running the Pan-tilt Demo ======
-OK, you've [[wiki:v2:Assembling_pantilt_Mechanism|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, **as long as the cable is 4 ft or shorter**. (3 ft is common, and even better.) If you use a longer cable, there can be up to 1 volt of voltage drop along the cable, which is fine for Pixy, but the servos will malfunction. **The USB cable that came with your Pixy2 is recommended.** Also, before you run the pan-tilt demo, go ahead and [[wiki:v2:Teach_Pixy_an_object|teach Pixy an object]] if you haven't already.
+OK, you've [[wiki:v2:Assembling_pantilt_Mechanism|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** for powering your Pixy and pan-tilt.  But **as long as the cable is 4 ft or shorter** (3 ft is common.) If you use a longer cable, there can be up to 1 volt of voltage drop along the cable, which is fine for Pixy, but the servos will malfunction. Also, before you run the pan-tilt demo, go ahead and [[wiki:v2:Teach_Pixy_an_object|teach Pixy an object]] if you haven't already.
 We should also mention that the pan-tilt base needs to be anchored to the table somehow before running the demo.  Attaching your pan-tilt to an Arduino is sufficient.  Otherwise, you might try placing the pan-tilt base between two books.  If you don't anchor the base, the base will tend to rotate under Pixy, leaving Pixy more or less stationary (and we want Pixy to move/rotate!)
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 There are a couple ways to run the pan/tilt demo.
-==== Running the demo by using the button press sequence ====
-When Pixy first powers up, you'll notice that the LED turns on (white) for about 1 second, then flashes, then turns off. What's really happening is Pixy is asking you which program you want to run. Currently, Pixy ships with two programs:
-  - the default tracking program that detects objects and streams them out the port you choose
-  - the pan/tilt demo
-So, power up Pixy, and when the LED turns on (white), hold down the button. The LED will turn white then red, white then red, etc. If you release the button when the LED is white, you will select the default tracking program. If you release the button when the LED is red you will select the pan/tilt demo. So do that -- release the button when the LED is red. The LED will flash red a couple times which means "running program 2!"
-And then Pixy should track your object. Yay!
-A quick note on program selection -- normally, upon power up, if you don't press the button, Pixy "times-out" and just runs the default program, which is the tracking program, but you can configure which program is the default program from the [[wiki:v2:Expert_Pane|PixyMon Configure Dialog]].

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