Super Dial motor knob screen - in internal testing

Effect reference video (shot by Mr. Chong Er) https://www.bilibili.com/video/BV1Fr4y1E7Gj?p=2&spm_id_from=pageDriver&vd_source=3171aad4e5d21a8c775355d4a4b231d5

2022/7/10: The open source PCB and schematic diagram are only used for a small part of the testing in the group. The BOM table and code are only released in the internal testing group (the BOM is not open source yet) and will be compiled and released later.

2022/7/16: Trampling GPIO 34 to 39 are GPIO - input pins only. These pins have no internal pull-up or pull-down resistors. Push uses PIN35, so a pull-up resistor needs to be added.

1. Will it be open source? Yes, I am sorting out the information; I am going to find a few group friends to test it internally, and strive to open source the solution that can withstand scrutiny!
2. What is the cost? Fortunately, after calculation, it seems to be cheaper than the price of a motor in the foreign Smart Knob project. . . . . .
3. Is it difficult? Fortunately, the circuit part is easier than the self-balancing Lello triangle, but if you want good results, you need to be patient during assembly.
4. What innovations are there? Some, such as the hollow shaft of the motor passing through 8 wires, also achieve real press feedback through structure-circuit design (this seems to be the first of its kind in a similar project?). At the same time, because of the press, the triggering method is Rotate, click, double-tap, long press, press and rotate, and more!

5. The most grateful ones are Mr. Zhonger, Mr. Muyan and Mr. Jia Lichuang. This project was supported by the Spark Project and was successful. Thank you so much