This is a Kotlin app that reads values from a NetworkTable and controls a UART device. It is designed to be used with WPILib NetworkTables, specifically the SmartDashboard.
It uses values to turn LEDs on and off on a Raspberry Pi Pico (via UART).
This project aims to control the LEDs of the Geekos FRC team's Operator Console to monitor the state of the robot.
You can download FRCNetTable2Uart-[version].zip package from the release page.
You only need to unzip it, and that's it!
(You can also download a .jar file from the release page, but you will need to use the command line to run it.)
You also need to have WPILib's JDK installed on your computer.
You can download WPILib from here.
It will be installed in C:\Users\Public\wpilib\2025\jdk by default on Windows.
You must be connected to the robot's network to read the NetworkTable and connected to the Raspberry Pi Pico via USB. (It is not mandatory, but it is better if you want to see the LEDs turning on and off.)
After unzipping the package, you can run the program by double-clicking the run.bat file.
After downloading the .jar file, you can run it with the following command:
C:\Users\Public\wpilib\2025\jdk\bin\java.exe -jar FRCNetTable2Uart-0.2-all.jarThe program is divided into two parts:
- The first part runs on the computer and reads the values from the NetworkTable.
- The second part runs on the Raspberry Pi Pico and controls the LEDs.
The code is written in Kotlin, uses the WPILib library to read the values from the NetworkTable, and uses the jSerialComm library to send the values to the Raspberry Pi Pico via UART.
PlatformIO has been used in this project to compile the code for the Raspberry Pi Pico with the Arduino framework. The code is available in the pico-control folder.