Hello I'm developing a project to school which I want to activate a motor via PWM signal but I want isolate the arduino output with a optocopler just in case of preventing a possible damage to arduino board. Does anyone have a circuit with a optocopler and a relay or a transistor?

isolating the arduino output via optocopler

hugo007 June 27, 2011, 5:02pm 4

Did you think 4N26 will do the job?
I found on ebay for a nice price

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