One channel relay voltage problem
Posted: Thu Jul 26, 2018 1:58 pmHi,
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 ?
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 ?
