Duplicating the function of an IR remote

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Discussion Overview

The discussion revolves around the concept of duplicating the function of an infrared (IR) remote control for an air conditioning unit. Participants explore methods to create a simple circuit to replicate the ON button functionality, considering both DIY approaches and existing solutions like learning remotes.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant suggests starting by detecting the signal sent by the existing remote.
  • Another participant mentions that learning remotes could be a straightforward solution, although they express a preference for a DIY approach.
  • A different participant proposes using a timer and counter circuit or a microcontroller like the ATtiny8 to replicate the pulse sequences of the remote.
  • There are references to online resources that detail pulse sequences for various brands, which could assist in the DIY process.
  • A side note is made about using a first-generation PSP with custom firmware to control the AC via an IRremote app, presenting an alternative method for those with the device.

Areas of Agreement / Disagreement

Participants express varying preferences for methods to achieve the goal, with some favoring DIY solutions and others acknowledging the practicality of learning remotes. No consensus is reached on a single approach.

Contextual Notes

Participants do not detail specific assumptions about the AC unit's IR protocol or the exact requirements for the circuit design, leaving some technical aspects unresolved.

Who May Find This Useful

Individuals interested in electronics, DIY projects, or those looking to control their appliances remotely may find this discussion relevant.

DaveC426913
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My bedroom AC has a remote. I would like to make an ultra-simple circuit to duplicate just the ON button. I want to leave the real remote on the nightstand and still be able to turn my AC on from downstairs (I do have line-of-sight).

I guess step 1 will be to detext what the remote is sending out...




Wait...

duh. There are learning remotes!

Thanks guys!
 
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Happy to help.
 
It's just relatively simple pulse sequences. A timer and counter circuit could do it (although I'd choose simpler design over cost and use an ATtiny8 or some other microcontroller).

There are pages on the net which detail the pulse sequences for different brands of controllers (if you don't want to measure it yourself).

Or of course you could get a 'learning' remote, but where's the fun in that? ;)
 
On a side note, if you have a first-generation PSP (affectionately called phat), with custom firmware installed (CFW) you there is a IRremote app which could potentially let you turn on your A/C while playing your favorite video game.
 

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