Convert Audio Output into LEGO Power Functions RC Infrared Signal Part 1: Basic Circuit

The basic circuit used 2N3904 NPN transistor to convert MP3 audio output signal into LEGO Power Functions RC infrared signal, to control LEGO Power Functions Motor. The basic circuit simple but requires higher power to drive. Audio command files are specially composed to meet the LPF RC Protocol Combo direct, Combo PWM and Single output mode. Any MP3 music player with audio socket can act as LEGO Power Functions 8885 IR Remote Control (6034989) and 8879 IR Speed Remote Control (6019910) to send LPF RC Protocol infrared signal. The demonstration used mobile phone to remote control LEGO Power Functions Motor and Servo Motor forward, backward and PWM in 7 steps.

TechnicRobot LPF RC Audio Command Files Download:
https://drive.google.com/open?id=0B_QvNa9vVbF6YWFWa1VJTUZBUm8

WARNING: Do not try to make this experiment unless you know exactly what you're doing! I will not be held responsible for any damages of your mobile phone or any other parts!

Видео Convert Audio Output into LEGO Power Functions RC Infrared Signal Part 1: Basic Circuit канала TechnicRobot