Arduino Relay Tutorial (Control 220V - 12V Devices)

Download the code here! romank.co/d/relay
For my other cool projects visit:
romankozak.com
Part links:
Relay - www.sparkfun.com/products/100
Resistor - www.sparkfun.com/products/8377
Transistor - www.digikey.com/short/t3ncmq
Diode - www.digikey.com/short/t3ncm9
Alternative:
If you are looking for a simpler way to add a relay to your project, checkout these relay control kits. Here is one from SparkFun. www.sparkfun.com/products/11042 They are pretty much the same circuit as seen in my video however, everything is already "wired" together. All you have to do is plug in the necessary power and signal connections.
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