====== Interface Tab ======

**Note - the Pixy LEGO firmware does not include this tab. If you are running Pixy LEGO firmware, you should be looking at [[wiki:v1:LEGO_Wiki|our LEGO wiki.]]**

This tab contains parameters for configuring how Pixy communicates its results (what it senses) to the world. Pixy uses one of several interfaces to do this -- UART, SPI, I2C, USB and analog/digital output. To bring up the Interface Tab, first bring up the Configure Dialog (click on the gear icon or select **File➜Configure**). Now select the **Interface** tab under **Pixy Parameters**.

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  * **Data out port:** This parameter selects the output port.\\
**Arduino ICSP SPI:** This is the default port that is used to communicate with Arduino through the ICSP connector.\\
**SPI with SS:** This is the same as the Arduino ICSP SPI except that it includes support for Slave Select, which is commonly used with SPI.\\
**I2C:** This selects I2C, which is a common multi-drop 2-wire port.\\
**UART:** This is the common "serial port", or asynchronous serial.\\
**analog/digital x:** This will output the x value of the largest detected object as an analog value. It also outputs whether an object is detected or not as a digital signal.\\
**analog/digital y:** This will output the y value of the largest detected object as an analog value. It also outputs whether an object is detected or not as a digital signal.\\
**LEGO I2C:** - If you have a [[http://www.lego.com/en-us/mindstorms/?domainredir=mindstorms.lego.com|LEGO Mindstorms]] EV3 or NXP controller, use this mode. It's I2C, but uses the LEGO protocol.\\
You can find more detailed information on the different data interfaces [[wiki:v1:Porting_Guide|here]].

  * **I2C address:** This parameter sets Pixy's I2C address if the **Data out port** is set to I2C.

  * **UART baudrate:** sets the baud rate if the **Data out port** is set to UART.