Everything from your neighbor’s LCD TV to your other neighbor’s stand fan has a remote control. Most of these remote controllers are transmitting commands to your favorite appliance using IR (Infra Red). This handy thing gives everyone the feeling of having super natural powers – “I can turn off the TV without even touching it! wahahaha”.
It is indeed handy to have a remote control which you can carry around turning appliances on and off. But how about controlling the brightness of the lamp, like increasing and decreasing the volume of your TV? Guys from the ePraktikum group built a very handy contraption that would enable anyone to have remote and I say remote access to two light bulbs, not only turning them on and off but actually dimming the lamp to adjust to the mood. They used a TSOP1736 to receive IR data from an RC5 remote controller (PHILIPS), data is then fed to a PIC12F629 – an 8-pin microcontroller that would interpret the IR signals and turn them into pulses that would control two separate TIC206M triac which will regulate the amount of power injected to the light bulbs. The regulation action of the triac regulates the amount of light that the bulbs emit.