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How do I make an RF remote control? Answered

How do I use these? (http://www.vegakitindia.com/productdetails.asp?ProdID=RF01A315) I need a complete step by step guide on how to make an rf remote control... I'm used to AVRs. But remote control is new to me.?

Sorry if this has already been asked, i couldn't find anything to-the-point



Im looking for one as well, and found this one..

Suggestion: Use modules for which you can find instructions/examples. If you can't find documentation, continue shopping.

+many. The number of these half-assed webshops who sell you a module with no data is too many to count.

What exactly do you want to do? This may not be the best or easiest way to go.

In general your going to need a micro controller to drive these modules to provide the intelligent signal.

Your plans may be limited by local radio restrictions or the usually low range/line of sight qualities these type of modules have.

More details required.

im using it for home automation. I need it to turn on/off switches.. through relays..

You'll need some smarts at the receiver end, like someway to address each module, some CRC code, preamble generator etc


yeah...... I dunno why im not getting any notifications from the instructables bot. Sorry for that...

Yup yup, I can use the atmega for the brains, (addressing, data, encoding, decoding, etc)..
But still I dunno where to start...

Well that other comment of yours is influencing me to go ahead and experiment.... :D

RF remote control is popularly used in garage door opener remote, car remote control and many other home appliances and home security systems.
A basic RF remote control system comprises of several key components, such as SAW component which controls the transmitting frequency, encoder IC (PT2262,EV1527 or HCS301) to encode the transmitting data, oscillator resistor which controls the transmitting wavelength.
And on the receiver side, you can use a pair decoder to decode the data stream, such as PT2262/PT2272 pair, or you can use microcontrollers to decoder a more complex data such as HCS301.
I have found a basic guide on how to identify rf remote control from googling, you can check out http://www.solidremote.com/support/identify-rf-remote-control for more details.
and i have attached a inner photo of typical garage door opener remote, hope it helps.


7 years ago

Well....... It would be so much helpful if someone would write an intro to rf remote control and show us how to send and receive signals...... make a switch, perhaps? Arrrghhhh,...!!

I dunno. If you can find a COMPLETE datasheet, buy them. Usually you can direct serial comms into the input of the transmitter and pick up the same bitstream at the output of the receiver....there are lots of tricks to learn too. Make sure the RF signal is transmitted in a Manchester encoding too.