this time i will show how to turn on off the bulb light use relay, controlled with arduino.
simply modif blink example skecth from Arduino IDE example sketch code if you wanna more than 1 ch relay. today we use original blink led that makes D13 blink.
connect wire :
d13 with input relay
vcc 5v to vcc 5v relay
gnd to gnd relay.
make connection bulb dan power ac cord , another wire insert in blue connector of relay as switch.
upload the code
hear the relay ticking.. and the last connect the power ac cord to 220VAC.. you must see bulb blink
see ya.
Lamiono
