How Does an IR Remote Control Circuit Work? Explanation with Diagram

IR remote control circuits working with diagram.

can this circuit be used for switching on and off home securities like doors, light bulbs etc?
jelil.

Is that a statement or a question?

Please explain exactly, what is your problem ?

thanks Steve,
i didn't understand the circuit diagram as at when i was asking this question but i understand now.
best regards.

thanks frank
i didn’t understand the circuit diagram as at when i was asking this question but i understand now.
best regards.

Yes, but its not coded output So anyone can access your remote system

Not a Good circuit by the definition of security but is simply to demonstrate that you can use any remote with that circuit ID look into IR coding before continuing or using this circuit

It will however work but is not secure by any means

This is where truthfully you need to migrate to pic micro and possibly look at compilers such as offered by proton Smart which incorporate Sony IR in and Phillips RC5 codec’s

However it doesn’t include rolling code which is still by far the safest supposedly un crack able although in reality nothing ever is

But it is the safest particularly if you intend to use this for Security aware applications Consider also Bluetooth and wifi as another strong point now as this is leading into the newest of technologies with reference to tomorrows world

Here you might choose to use other encryption techniques and incorporate as an extra facility for example RF ID which relies on RF and power generated form the remote transmitter to your key with encrypted codes, sent once power up

Look into all of this if this is what you want to do also bare in mind that like any security system and very similar to RF Id which they are having massive problems with regards travel cards etc in the UK at the moment , particularly one day charges for all over London via tube rail and bus services

If not done correctly and with no apparent override system, if this does go wrong j which it I always will , just like any other electronic appliance etc Like any other data , Data can be and does get lost ,equipment may malfunction so you need to take all of this into consideration

I spent a day just on Saturday having to continuously having to correct a card because of system failure

Total cost to British Rail some £8.00 just for me Consider this of you will for some 20 000 plus commuters both foreign and national on a daily basis It’s a major catastrophe to say the least and why Too much of a rush to install this system and thought It would be perfect Nothing ever is !!

In other words instead of trying to get people to break the system They didnt bother This is exactly what I mean by "Dont listen , never do and always think they know better " , it pays to listen to all types of people no matter how big or how small Someone will always find a way through Thats what you have to account for

Unfortunatley you now see just how these descisions at the top of the leader ship path cost this country one tiny little bomb example £99 000 pounds on the recent fiasco Example the Olympic games

No Not funny at all anymore Costs people thier lives , costs people thier homes , thier jobs and leaves yet another mess for someone or a whole country to pay for even though they say , "We will write off the debt , that never happens , all that does happen is they increase the taxes the rent , and reduce the number of staff putting people under more pressure and they make more and more mistakes by the minute "

All done to reduce the nuymber of staff Does it work NO IT DOESENT!! ", never does

This is also why you need to have hackers Software testing , otherwise a simple move like this or so you would think costs the world the entire economics "Yes good isnt it " , I dont think so but there you go those are my thoughts and why i create as i do sometimes because I can see it comming before it even starts


It pays to speak your mind i dont belive in keeping quiet or pretending that it wont because it will and it does

Hi Mark, excellent that you brought in the point about system security.

However, for home security, I would think most burglars don't go around with IR security code cracking devices, so a relatively basic security coding would probably work perfectly for a home-brew system on a private house.

I would expect electronically armed burglars to be focusing on buildings with commercial security systems, as the likely gains would be far higher.

Obviously, it would be wise to camouflage the sensors so that the nature of the system would not be easily apparent to criminals.

There certainly is a lot of supposition going on here over a one line ambiguous "question".

Hello Mark,
I keep meeting great people like you, though its not a big surprise to me because God knows that i need you. As you can see in my profile i am still a learner, i have this interest in electronics that's why i did by all means find this forum. just be close when you see my circuit please correct them where necessary. I prefer if you stay close to me as an instructor. i only started with construction of simple power circuit.
But as a simple circuit how can i make it a coded output? so that no one can access my remote system.

thanks mark for being here