I am measuring the output of a temp sensor and generating a PWM based on the temperatures. Now I want to amplify this PWM signal so I can feel it as an electric pulse using a copper electrode on my hand. How do I convert or amplify the output of PWM from pin 9? What should I use to do this?

Help needed to convert/amplify PWM output from arduino Pin 9

anon57585045 September 5, 2021, 9:23pm 5

You can get a nice jolt from a small inductor or transformer winding that's just been disconnected from a small current.

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