Marlin CNC pendant V3.0 ESP8266 version

prusaprinters

<p>Update:<br>Version 3.0.1<br>Fixed a bug that some movements of encoder during BLOCKED status were executed after switching back to normal mode.</p><p>This is a remix from TheOrneryMaker's version of the CNC Marlin pendant.<br>https://www.thingiverse.com/thing:5362454</p><p>I ran into performance issues with the arduino Nano (fast rotation resulted in irrating moves back and forth) and other strange effects. So I decided to go all in, port it to ESP8266 (will also work on ESP32), added I2C-PCF8574 module to the keypad and make everything interrupt-based.</p><p>Here is the list of vhanges and features:<br>Version 3.0, Nov 7 2022</p><p>Keypad and rotary enconder now fully interrupt capable for smoother operation<br>changed to ESP32/ESP8266 compatible interrupt capable I2C encoder library.<br>changed to PCF8574 I2C keypad library<br>reduced false detection of fast encoderrotation<br>Display "BLOCKED" status of safety switch<br>Added V1 engineering logo<br>Added OTA Firmwareupdate (optional, choose with OTA=true in variables)<br>Changed B-button from A-axis to a diagonal move +x+y / -x-y<br>Added C-Button for a diagonal move +x-y / -x+y</p><p>Hardware needed is the same as in the original V2 version. Just add a PCF8574 module (cheap on Amazon or Aliexpress), a 220Ohm resistor, a 5mm red LED, LED reflector mount and exchange the Arduino Nano with an ESP8266 (e.g. NodeMCU 0.9 ESP-12E) or an ESP32 devkit V1.</p><p>Wiring is documented in the code!</p><p>Case is the same as with the original version. I add the unchanged STL's for completeness.<br>Some videos of it in action</p><p><a href="https://youtu.be/XBwzNp-7NvA">https://youtu.be/XBwzNp-7NvA</a><br><a href="https://youtu.be/LAAQQS1KYp8">https://youtu.be/LAAQQS1KYp8</a><br><a href="https://youtu.be/b0EgFXaEPNc">https://youtu.be/b0EgFXaEPNc</a><br>Thanks a lot to TheOrneryMaker for all the initial work he did! I hope, you like the V3.0!</p>