How to find Hex code of remote

Hey everyone,

Greeting to all,

I just wanted to know , how to find Hex codes of remote , but important things is, remote is Airtel hd setup box,

Normally we can find Hex codes of any remote using ir remote lib

But problem is we can not find Hex codes of airtel remote using ir remote lib or we can say using demo.io

Do you know that the Airtel remote is actually working?
It's possible that the Airtel is using a proprietary protocol that the IrRemote library doesn't recognze. I've never used this library, but does it return an error status?

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Ok thank you sir for your reply,

I dont get any error, but in serial monitor I am getting many values , and every time defferent value when I press same button

Have you tried your experiment with a few different remotes to see if you are missing some other detail?

a7

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If you have a scope, you can rig up an IR receiver, or an IR phototransistor, or possibly even just a red LED, and capture the remote's output on the scope. But the easiest way is probably extensive Googling to find where someone else has already figured it out.

Does the modulation frequency of the remote match the modulation frequency of the IR detector/decoder?

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Sorry sir but how to check it

Yes o try many remote and I am getting proper value

But problem is, in my project is necessary to use airtel remote

Hmmm I am trying to google, and each and every way to find code of that remote

Maybe you'd eventually need to learn how to decode the remote protocol codes for each button.

I use a cheap logic analyser running the PulseView software and an IR photo transistor circuit.

IR LOGIC ANALYSER

This is what shows when the 1 button is pressed on my NEC remote.

This is the pulse train expanded to measure the modulation frequency.

Modulation frequency is 38KHz.

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And I thought the one I had was cheap inexpensive. In case anyone has any doubt, a tool like this can come in very handy.

volt meter
frequency counter/timer
logic analyser
oscilloscope

and slot

function generator
arbitrary waveform generator

into that list somewhere. No need to break the bank for some entirely adequate instruments.

a7

I have been at the microcontroller hobby for a long time. I used to have a 4 channel digital scope, but it died. I don't have much money so I bought one of those logic analyzers and have not really missed the scope. In the Pulseview software there are a bunch of handy decoders like I2C, SPI, UART that help to interpret a channel's data.

it helps? IRremote code for Airtel STB

RV mineirin

Sounds like a rolling code, but I've only seen it used in automobile keyfobs for security.

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