1. Some parts needs in this project.

2. Soldering.

3. Finished.

4. Connect test.

Product list:

ESP8266 http://bit.ly/2KPHFEh

SPDT 12V Relay  http://bit.ly/2MKR8xN

Transistor C1815 http://bit.ly/2Hf1jtN

Resistor 10K http://bit.ly/2TMSWXV

Resistor 1K   http://bit.ly/2XXF9R3

Resistor 470 http://bit.ly/2ubDCcE

Led 3mm http://bit.ly/2IkuH1s

LM7805 SMD http://bit.ly/2mVpLXO

Capacitor 100nF http://bit.ly/2QK6ph7

Capacitor 220uF http://bit.ly/2SEgpxy

Capacitor 100uF http://bit.ly/2RMTpMi

Diode 1N4007 http://bit.ly/2tt5dFO

More details, pls check the video on Youtube: