I bought a kit to assemble a polargraph (vertical plotter). It consist of an Arduino Mega, a Ramps 1.4 and a display. Alimentated (by the USB cable) it doesn't react. Starting with testing the Arduino the laptop sees a port COM3 and testing some sketches of Arduino all works. Adding the Ramps on top the COM port isn't visible anymore nor can I select a port as asked by Arduino. Any suggestions?
Edited 1 time(s). Last edit at 04/24/2022 09:04AM by gibrie.
