Raspberry Pi Pico - Kitronic robotics case board (Work in progress!)

- Work in progress! -

This case is part of a project which will be described further down.

This case have the power and motor terminals accessible from the side and a lid to allow for a 0.91 inch OLED screen and one rotary encoder. 

This is a project that will be updated when there is time, and sourced parts arrive. Use at your own risk.

Project goal

Make a stepper motor controller that uses a rotary encoder to control two different stepper motor speeds and store their values once new ones are set. Speed and speed ratio should be visible on the display.

Completed:

• Bottom case has a nice fit and terminals are properly placed and dimensioned.
• Loading and storing settings using micropython code.
• Displaying current settings and getting visual feedback while adjusting motor speeds.
• Fail-safe to set default speeds if loading stored values fails.

Uncompleted:

• Holes for Micro USB and On/Off switch.
• TPU-seals to isolate from dust.
• Different lids for different types of usages.
• Proper integration of rotary encoder. My encoder is probably to sensitive or broken, so waiting for new ones to arrive. Tried many different codes for this encoder with no success.
• Need a proper power source as my stepper motor stalls and becomes to hot because of to high voltages. However the motor turns as it should…
• Utilizing at least one continuous servo motor for stirring.

Future ideas:

• Switch to ESP32 and connect to Node Red to adjust machine settings.
• Camera to supervise stirring of components.