DIY Electronic Switch
PCB Circuit Diagram https://yadi.sk/d/_OrFq7ysu84EQ
Relay http://ali.pub/e2n05
CD4017 http://ali.pub/k2jiy
CD4011 http://ali.pub/1l6du
LEDs http://ali.pub/1o9lw
Save on Aliexpress purchases! http://ali.pub/1jdycd
Smartphone version http://ali.pub/1jdyom