(02-10-2026, 04:20 AM)admin Wrote: G1 free GPIO can't driver relay coin directly, it's no driver. not enough current.
Please confirm if I should use the relay module for this setup and verify that 12V is required to power the device on the relay side.
Control side:
GPIO → IN
GND → GND
5V → VCC
Power side:
12V+ → COM
NO → Siren+
Siren– → GND
This Correct?