Some notes that include pin assignments, guides and other resources.

Our code is in a private repository but here are some of the guides that will get you there:

• Adafruit's guide on using LED panels
• Adafruit learning guide for a robotic solenoid
• Two useful NRF24 guides https://howtomechatronics.com/tutorials/arduino/arduino-wireless-communication-nrf24l01-tutorial/ and https://lastminuteengineers.com/nrf24l01-arduino-wireless-communication/

A4998 stepper motor driver tutorials:

• https://www.makerguides.com/a4988-stepper-motor-driver-arduino-tutorial/
• https://ardufocus.com/howto/a4988-motor-current-tuning/
• Solid Arduino wiring instructions and code: https://lastminuteengineers.com/a4988-stepper-motor-driver-arduino-tutorial/ - Explanation about loosing steps when the torque is exceeded here.

Design software:

Many of the pieces were designed using Cuttle.xyz in particular where parametric software was useful, see for example the Pipe instrument

Keyboard controller

• Display cable pins assignments as connected to Arduino mega:
• NRF24L01 with a 5V to 3.3 regulator pin assignments. Here is the guide.
• Pin assignments for buttons and mode switches with color coded wire

Pipe instrument

The 5V pads on the teensy are cut off as specified here. When uploading code make sure there is external power provided for the board.