As the title said. The relay power up (green light), but there is no power on the connectors which suppose to turn a 3.3v fan. Xiao powered with 5V on the pins. Any sugestion?
Hi there
And Welcome Here…
Are you talking about this one?
here is the Link to the Spec sheet if so… It is only a passive device. YOU have to wire it up properly to pass on the 3,5 or 12 volts to the output when it’s turned ON by Xiao code.
HTH
GL 
PJ 
1 Like
I think I wired properly (VCC to 5V - GND to GND and D1 for data). I was thinking if I toggle data wire I should see a change and the fan should start or stop. I was wrong? I loaded wled on xiao esp32 C3 and an usermode which activate multirelay. Put the D1 pin on the usermode and nothing… I tried a level shifter same behaviour - nothing. Any other advice …
Hi there,
Can you post the code you are using ? and a pic if you have (enough forum credz, takes a few reply’s) , btw Use the code tags above “</>” paste it in there. Sounds like you have it correct… Hmmm.
What is the relay side connected like?
You’ll get it, your close.
HTH
GL PJ
This is a possible circuit and code for a relay driver on an ESP32-C3. See the link for the code.
1 Like