Hello, ive recently bought this relay board on ebay:
but i don't know how to toggle the relays, ive tried to connect gnd to gnd, vcc to 5v, and in1 to pin3 on arduino, but it didn't do anything!
ive just made a basic code to set the pin3 output to high.
what am i doing wrong?
U got the 5V edition ?
see the schematic for Ucc/JDUcc
If U have no external power. check jumper Ucc/JDUcc
With a wire : connect In1 to 5V/GND alternating
ive found what i did wrong, it came without a schematic or manual, but after 30 mins oof trying, ive noticed i had a type-o XD still thanks!