Dear all,
I have build my own 3d printer and it works. But it wont work when it is unplugged from pc. It has voltage output still but the lcd screen wont power up. I have changed the arduino mega into another one. This time, it powers up the lcd without needing to connect to usb but the lcd shows nothing with pulses of dim light flickering. I am not sure what is my problem. The ramps have d1 d2 diodes in place. The overcurrent protection of the mega's dont heat up quickly. Is there anyway to troubleshoot the arduino mega? I have tested with a fully working mega of my friend's and it works fine.
Please help !! Thank you.
I have build my own 3d printer and it works. But it wont work when it is unplugged from pc. It has voltage output still but the lcd screen wont power up. I have changed the arduino mega into another one. This time, it powers up the lcd without needing to connect to usb but the lcd shows nothing with pulses of dim light flickering. I am not sure what is my problem. The ramps have d1 d2 diodes in place. The overcurrent protection of the mega's dont heat up quickly. Is there anyway to troubleshoot the arduino mega? I have tested with a fully working mega of my friend's and it works fine.
Please help !! Thank you.