Arduino Uno R3 Digital Pin Output Voltage - Only 0.5V

Official Hardware UNO Family UNO R3
1

I'm having an issue with the digital output levels on my Arduino Uno R3. When I set any of the digital output pins to "OUTPUT" in the pinMode and generate a repeating pulse, Both my oscilloscope and voltmeter are measuring 0.5V in the "high" state on every pin when programmed to the "OUTPUT" mode. Should I not be measuring something between 4 and 5 volts in the high state?

2

If you have something connected to those pins please post a schematic. Also post your code. Your statement indicates a fried Arduino or something not properly setup. Also check your scope prob and see if it is in X10 mode or if it is an X10 probe connected by mistook.

3

Thanks. The darn probe was in X10 mode. Switched it to X1 = 5.0V!

4

Please mark the problem solved :slight_smile:

5

I’m new here. I can’t see where to mark it solved.

6

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