Steps:

1. The parts we need in this project.

2. Some steps to make this circuit.

3. Finished and test.

Product list:

BD140 transistor https://www.utsource.net/sch/BD140

IR receiver  https://www.utsource.net/sch/IR%20receiver

100 ohm resistor  https://www.utsource.net/sch/100%20ohm%20resistor

10k resistor  https://www.utsource.net/sch/10k%20resistor

led  https://www.utsource.net/sch/led

More detail, pls check the video on Youtube: