Despite having access to an oscilloscope, [Brian] aka [schoolie] has come up with his own method for measuring PWM period and duty cycle without a scope, just in case there’s ever a PWM emergency!

The following measured waveforms Figure 5 (A) and (B) show drain-source voltage of low-side PWM switch during different turn-ratio (N=11 and 12). There are several different system behaviors between ...

[Jana Marie] must agree with this sentiment, one of her latest projects involves building a tool to generate a PWM signal and test servos using an Attiny25/45/85. What tools have you build recently?