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

prusaprinters

<p>- Work in progress! -</p><p>This case is part of a project which will be described further down.<br><br>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.&nbsp;<br><br>This is a project that will be updated when there is time, and sourced parts arrive. Use at your own risk.</p><p><strong>Project goal</strong></p><p>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.</p><p>Completed:</p><ul><li>Bottom case has a nice fit and terminals are properly placed and dimensioned.</li><li>Loading and storing settings using micropython code.</li><li>Displaying current settings and getting visual feedback while adjusting motor speeds.</li><li>Fail-safe to set default speeds if loading stored values fails.</li></ul><p>Uncompleted:</p><ul><li>Holes for Micro USB and On/Off switch.</li><li>TPU-seals to isolate from dust.</li><li>Different lids for different types of usages.</li><li>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.</li><li>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…</li><li>Utilizing at least one continuous servo motor for stirring.</li></ul><p>Future ideas:</p><ul><li>Switch to ESP32 and connect to Node Red to adjust machine settings.</li><li>Camera to supervise stirring of components.</li></ul>