Use XRP to practice

Program RP2040 with Arduino IDE

First, install the Arduino IDE. Then, navigate to File -> Preferences and paste the link below into Additional Board Manager URLs. If the field is initially blank, just paste the link in and press OK. If there are already one or more URLs there, add a comma to the last one paste the link there, and press OK.

The link to copy and paste: https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json

Click “OK” to save these preferences. Then, go to Tools -> Board -> Board Manager and type pico into the search bar, and hit enter. Select Raspberry Pi Pico/RP2040 by Earle F. Philhower, III and press Install. Then press close and you should be all set to connect your RP2040.

Now that you've successfully installed the core, you can move on to connecting your RP2040 to the Arduino IDE.

Then in the Arduino IDE, go to Tools -> Board -> Raspberry Pi RP2040 Boards and select the board you are using

Note that the COM port number may be different and the interface will be different for macOS

XRP connections:

XRP hardware connections

Hardware Overview - SparkFun XRP Robot Controller Hardware Overview

Pinout Reference Table

The table below offers a quick reference for the complete pinout on the XRP Controller Board and which pins they connect to on the Pico W.

Pico W GPIO Pin	Connector Label	Pin Function
GPIO0	Motor 3	Motor 3 Encoder A
GPIO1	Motor 3	Motor 3 Encoder B
GPIO2	Motor 3	Motor 3 Phase Pin
GPIO3	Motor 3	Motor 3 Enable Pin
GPIO4	Motor L	Left Motor Encoder A
GPIO5	Motor L	Left Motor Encoder B
GPIO6	Motor L	Left Motor Phase Pin
GPIO7	Motor L	Left Motor Enable Pin
GPIO8	Motor 4	Motor 4 Encoder A
GPIO9	Motor 4	Motor 4 Encoder B
GPIO10	Motor 4	Motor 4 Phase Pin
GPIO11	Motor 4	Motor 4 Enable Pin
GPIO12	Motor R	Right Motor Encoder A
GPIO13	Motor R	Right Motor Encoder B
GPIO14	Motor R	Right Motor Phase Pin
GPIO15	Motor R	Right Motor Enable Pin
GPIO16	Servo 1	Servo 1 Signal Pin
GPIO17	Servo 2	Servo 2 Signal Pin
GPIO18	Qwiic	Qwiic Data Signal for the IMU & Qwiic Connector
GPIO19	Qwiic	Qwiic Clock Signal for the IMU & Qwiic Connector
GPIO20	Range	Range Trigger Pin
GPIO21	Range	Range Echo Pin
GPIO22	Extra	User Button/Extra
GPIO26	Line	Line Follower Left Signal
GPIO27	Line	Line Follower Right Signal
GPIO28	Extra	VIN_Meas/Extra

Uploading a Sketch

Make sure all your Arduino settings are correct and you've selected the correct serial port.

In the Arduino IDE, navigate to File -> Examples -> Examples for Raspberry Pi Pico and select the Blink example. Then press the upload button and your code should start running in a few seconds.