My parts bundle arrived yesterday! While my parts are printing, I am doing other things in preparation for the build. I tested the RAMPS/Mega board by connecting 3 stepper motors, resistor and pugging in the power supply. I can’t get a serial connection to the Mega from the Arduino IDE, and I can’t connect to Repetier.
I have another Mega not being used right now, so I loaded the RAMPS-RC firmware downloaded from the link in the Assemblies page. I can connect to the Arduino IDE Serial Monitor, and I can connect to Repetier. I can control all three X, Y, and Z axes. The RAMPS Board is good, so it must be the MEGA.
When I connect the Mega (from the Parts Bundle) to the USB, it’s recognized by Windows, and it has a port number. The two red LEDs labeled L and ON both light steady. The error I get from the Serial Monitor of the IDE is “Error while setting serial port parameters: 250,000 N 8 1”. If I press reset, I will get some gibberish in the serial monitor (like when the Baud Speed is set wrong). I did a visual inspection of the Mega, top and bottom, and I don’t see any bad solder joints or any other visual damage.
Has anyone seen this, and is there a way to fix it?