How to make remote controlled light switch
Today we will learn how to make Remote control light switch, well in fact 4 light switches. We are in fact using Ir – Infrared light. It is used for remote control purpose since many years, specially in consumer appliances like TV, VCR, DVD players, Home Theater Systems etc. Here we are using same technology, in fact the same remote handset to control our home lights. Yes ! we can use same technology to turn on & off our electrical gadgets.
This is possible with the use of any board which can understand the remote codes that are transmitted by remote handset and act accordingly. Here we are using AZ4CR-03 for our purpose. This is a 4 channel IR remote controlled Relay board. This has 4 channel that means this board can operate 4 on board relays. A relay is a kind of electro-mechanical switch. It consists a small coil which acts like a magnet when power is applied to it. This action is used to construct a contact switch. This whole electro-mechanical construction is housed in a small plastic box.
If you see the AZCR-03 board, it consists of main controller IC, 4 relays, power supply and an IR sensor. We will connect 4 electrical bulbs to 4 relays of AZCR-03. Please go through User Manual to read about connections.
Look at below pics to understand the total setup to make remote control switches. You can use any RC5 coded Philips remote handset to control light switches at your home.
Yes , as you can see, it is very easy to make Remote control light switch . In fact you can operate any electrical appliance remotely using this technique.
If you want you can have AZ4CR-03 from Iknowvations Shoppee and have great fun. Please note that this involves 230 V AC so due care is absolutely needed. If you do not have enough experience then please have someone with you who has got enough experience handling high voltages.