Question: Using this in an already existing circuit

KlausMu / esp32-fan-controller

ESP32 fan controller with temperature sensor and MQTT

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Question: Using this in an already existing circuit #13

Closed Arise closed 1 year ago

Arise commented 1 year ago

Hi there. Can I use this project in an already existing circuit, that has a PWM fan? I don't want to control the PWM, I only want to spy on the tacho pin and read the current RPM.

If I add the RC and the pullup resistor, could that mess up anything on the existing circuit readouts?

KlausMu commented 1 year ago

Should work if you have a common ground.