One channel relay voltage problem

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  • Joined: Tue Jul 24, 2018 6:59 am
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One channel relay voltage problem

PostThu Jul 26, 2018 1:58 pm


I have a problem with relay serve. I've used simple code on python for switching GPIO output 0/1 but the relay do only one operation - close and doesn't switch back. The relay is connected to 5V = VCC, Ground = GND and GPIO 23 = INN. When i messure the voltage on VCC and INN on startup its about 0.6volts. When i run the script and setup the pin and make the output LOW(relay ON) the voltage goes to 4,75 volt and the relay is turning on but when i set te output to HIGH(relay OFF) nothing happend and the voltage is about 1.5v volt. When i switch the board to 3.3v everything worked fine but its 5v relay why do i have to connect it to 3.3v to get it working? Can someone help me out ?
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Re: One channel relay voltage problem

PostThu Jul 26, 2018 4:42 pm

What product are you talking about????? :?
Code on python? Relays? Switched the board power from 3.3 to 5V?

I can not make any relation to what product we are talking about...
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