Hello, I have been trying to figure out how to lower the voltage down from a PWM signal generator since the voltage is higher than 5V and I don't want to damage my Arduino.
The PWM signal voltage is 13-17V and I am trying to scale it down to 1-5V so that I can use Arduino as an oscilloscope.
Which ways of doing this would you recommend?
Make a voltage divider. (two resistors, 10k + 33k) Resistor values not critical