Issue with MD10C and Arduino Uno
Posted: Tue Sep 02, 2014 10:58 pm
First off let me say I really like the MD10C and I'm sure what happened is something I did but I can't seem to locate where I did anything incorrectly.
As soon as I flipped the power switch on for the 9v it burned out something on the Vin on the Uno side. The only way the Uno now powers up is by connecting the computer to it.
I had everything working correctly without the MD10C connected. I used an external 9v connected to the Vin pin on the Uno but the MD10C was not in the circuit.
I don't really care about the Uno I just want to make sure I don't roast another one.
Any thoughts?
My first thought was to run the Uno off it's own power source but I'm a little unsure how to connect everything if I have two sources with two different voltages. One source for the Uno at 6 - 9 volts going into the Vin pin and one source for the MD10C at 9 - 12 volts with the logic grnd connected to the Arduino ground. I experimented around with this a little and every time I connected the wire from the MD10C logic ground to the ground on the Uno the regulated 5v out from the Arduino would start fluctuating enough to effect the output from the pots connected to the 5v source.
Any thoughts on this?
This is my wiring diagram Sorry it's probably a little hard to read.
Any thoughts would be appreciated.
As soon as I flipped the power switch on for the 9v it burned out something on the Vin on the Uno side. The only way the Uno now powers up is by connecting the computer to it.
I had everything working correctly without the MD10C connected. I used an external 9v connected to the Vin pin on the Uno but the MD10C was not in the circuit.
I don't really care about the Uno I just want to make sure I don't roast another one.
Any thoughts?
My first thought was to run the Uno off it's own power source but I'm a little unsure how to connect everything if I have two sources with two different voltages. One source for the Uno at 6 - 9 volts going into the Vin pin and one source for the MD10C at 9 - 12 volts with the logic grnd connected to the Arduino ground. I experimented around with this a little and every time I connected the wire from the MD10C logic ground to the ground on the Uno the regulated 5v out from the Arduino would start fluctuating enough to effect the output from the pots connected to the 5v source.
Any thoughts on this?
This is my wiring diagram Sorry it's probably a little hard to read.
Any thoughts would be appreciated.