Hello, I have a simple circuit, I use an Arduino and a relay module like this (see picture). I want to switch the motor on and off (no speed control) via that relay, the issue I have is that as soon I connect the relay to the motor the Arduino program is going crazy and it does random things. When…

Problem switching an AC 120v motor with relay

Other Hardware Motors, Mechanics, Power and CNC

JohnRob September 20, 2021, 6:54pm 10

Could still be noise because the mechanical relay will turn on when the AC line is not at 0 volts. The SSR will only turn on at 0 V
But I'm glad to see you have it working

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Problem switching an AC 120v motor with relay

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