Return to Question

Less conversational.

Source Link

edited May 20, 2019 at 20:48

14.6k
5
45
78

I’m measuring the voltage level from an Arduino uno pwmUno PWM pin using an oscilloscope. I’m using analogWrite(pin, voltage)analogWrite(pin, voltage) in the loop with pinMode(pin,OUTPUT)pinMode(pin,OUTPUT) in the setup().

I set the trigger to edge (rising), auto mode, but all I see is noise. Tried zomingzooming in/out and moving up and down on the screen to find the signal at 3.3 V but couldn’t find it.

I’m probablyWhat am I doing something obviously wrong but don’t know what it is! Thanks for the help :)?

I’m measuring the voltage level from an Arduino uno pwm pin using an oscilloscope. I’m using analogWrite(pin, voltage) in the loop with pinMode(pin,OUTPUT) in setup().

I set the trigger to edge (rising), auto mode, but all I see is noise. Tried zoming in/out and moving up and down on the screen to find the signal at 3.3 V but couldn’t find it.

I’m probably doing something obviously wrong but don’t know what it is! Thanks for the help :)

I’m measuring the voltage level from an Arduino Uno PWM pin using an oscilloscope. I’m using analogWrite(pin, voltage) in the loop with pinMode(pin,OUTPUT) in the setup.

I set the trigger to edge (rising), auto mode, but all I see is noise. Tried zooming in/out and moving up and down on the screen to find the signal at 3.3 V but couldn’t find it.

What am I doing wrong?

Source Link

asked May 20, 2019 at 20:33

Seth Shill

How to measure PWM on Oscilloscope?

I’m measuring the voltage level from an Arduino uno pwm pin using an oscilloscope. I’m using analogWrite(pin, voltage) in the loop with pinMode(pin,OUTPUT) in setup().

I set the trigger to edge (rising), auto mode, but all I see is noise. Tried zoming in/out and moving up and down on the screen to find the signal at 3.3 V but couldn’t find it.

I’m probably doing something obviously wrong but don’t know what it is! Thanks for the help :)

arduino oscilloscope