Board to control heater and step motor for PET filament extruder
- Use MOSFET module to connect hotend. If you use 25A MOSFET module, this work only with 12v, so wire here (https://imgur.com/slLvls0) to use 5v of arduino
- ENTER button to change what configure. Indicated by arrow
- UP and DOWN configure the value of indicated device
- LONG PRESS ENTER to start or stop the device indicated by arrow