I’ve got a keybow 2040 and I’m looking at adding a trackball using the i2c connectors on the board edge. I’ve added a monochrome screen to display what the keys on each layer and I’m currently working on the code to get that working. Next task will be to add the trackball to save having to switch to the cursor layer just to move the cursor. I’ve only just realised the libraries linked on the product page are Micropython, not circuit python. I’m new to micro controllers. Can someone point me in the right direction to get this trackball working on my Keybow2040 with circuit python please?
You could try this library: GitHub - 0xGGGGG/rpi-pico-pimorini-trackball: Mount an rpi pico with pimorini trackball as a mouse device through USB · GitHub. Note that there are others too, just google around.