I'm assembling a 3D printer with the RAMPS 1.4 shield (board) and an Arduino Mega. I have assembled the structure and the electronics (set drivers, placed the jumpers, connected stepper motors, etc.) and have uploaded Marlin firmware (configuring: thermistor, etc.) on to the Arduino Mega.
At first I tested my printer without end stops and at that time it worked perfectly.
Today I added three end stops and tested again. First it worked fine but after couple of minutes Pronterface gave this error:
> Connecting... Traceback (most recent call last): File "printrun\pronterface.pyc", line 1053, in connect File "printrun\pronsole.pyc", line 720, in connect_to_printer File "printrun\printcore.pyc", line 46, in inner File "printrun\printcore.pyc", line 197, in connect File "serial\serialwin32.pyc", line 31, in __init__ File "serial\serialutil.pyc", line 261, in __init__ File "serial\serialwin32.pyc", line 71, in open File "serial\serialwin32.pyc", line 186, in _reconfigurePort **ValueError: Cannot configure port, some setting was wrong. Original message: [Error 31] A device attached to the system is not functioning.**
I tried removing end stops, re-wiring, removing all cables from the RAMPS shield except power cables. Still it gives that error. Although Pronterface connects to the Arduino board when the RAMPS shield isn't powered up. Also the Arduino's regulator is heating up.
Do I need to buy a new RAMPS shield?