06-10-2014, 03:22 PM
Abstracts: Can you imagine how convenient your life would be if you could control various appliances inside or outside your house wirelessly. Here is a good news, RF remote controls provide a long range of up to 100 meters and work even through walls. You can control large AC and DC loads and many appliances through realays,including lights ,fan, AC system ,home appliances ,garage doors ,security systems ,motor-driven curtains ,motorised window blinds ,door locks, sprinklers and motorised projections screens . Here we present a 31-channel RF remote control based on AT89S52 microcontroller .it can switch ‘on’ and ‘off’ 31 different devices independently. There is no need of any encoder and for this 31 channel RF remote control.