air conditioner remote control protocol

but im not sure I understand how do I check if im right and how do I make the Pi send a transmission to turn on the AC for me with 23C and cooling mode, I read this article: http://www.raspberry-pi-geek.com/Archive/2015/10/R...and have it connected but i don't know how to combine your tutorial with all the information I gathered to execute this AMAZING project and step forward to create a web application so I can control my AC on the way home from a hot working day. please help and thanks again for your amazing help so far! Here is a list of the top 10 universal air conditioner remote controls that work with 99% of the split system air conditioners on the market today. In this article we will focus on the WiFi HVAC remote control. Most common ones though, are 38khz and 40khz. Temperature (from 16 to 30 degrees celsius). After all, it’s almost like all the other buttons in the remote are redundant – much like all those aircon symbols we see on the screen of the remote. In binary : The correct zone for the temperature is not found using these values. I did a quick check of your results, and all 3 samples were actually the same. The unit has an easy to read blue backlit LCD for night control and all the buttons you'll need to control most functions of your air conditioner. correction. Exemple : Ok, that seems insane :) Note that the file will begin with a line with a single value : it is the time elapsed between the recording start and the arrival of the first IR signal. In this instructable I show how I got to understa… The use of a file comparison program will help in identifying which part changes for each parameter. - 2 timers: one to turn off the unit after a certain amount of time, one to bring it back on One thing to know is that usual remotes controls, for TV, HI-FI, ... send a signal for each key pressed (often in loops while the key is pressed). thank you. A feature rich replacement for a lost or broken air-con remote. Do you have any idea how can I reproduce these codes? Refer to the 3rd image of this step for the code snippet. Anyway my goal was to control it from my PC, which I now do (and with the possibility to schedule it and make it a little more intelligent, like "turn it on the heat at 6PM but only if temperature is below a certain threshold" for instance). Next two numbers are 500 and 1200, definitely different, so a '1'. (it's not the same remote of you :( )I did the same test 3 times and have three different results The tests are to configure the remote control to 20 degrees and start the recording of infrared codes and press the button to set temperature above the temperature at 21 degrees.First test 3500 1650 500 400 500 1200 500 350 500 400 500 350 500 350 500 400 450 400 500 350 500 350 500 400 450 400 500 350 500 1250 450 400 500 350 500 400 450 400 500 350 500 400 450 400 450 1300 450 1250 450 1300 450 400 450 400 500 1250 450 400 450 400 500 400 450 400 450 400 500 400 450 400 450 400 450 400 500 400 450 400 450 400 500 400 450 400 450 400 450 400 500 400 450 400 450 400 450 450 450 400 450 400 450 400 450 450 450 400 450 400 450 450 450 400 450 400 450 400 450 1300 450 1300 450 400 450 400 450 400 450 450 450 400 450 9950 3450 1700 450 450 450 1250 450 400 450 450 450 400 450 400 450 450 450 400 450 400 450 450 400 450 450 400 450 400 450 1300 450 400 450 450 400 450 450 400 450 400 450 450 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400 450 450 400 450 450 400 1300 450 1300 400 450 450 1300 400 450 450 1300 400 1300 450Second test 3550 1650 500 350 500 1250 500 350 500 350 500 400 500 350 500 350 500 350 500 400 500 350 500 350 500 400 450 400 500 1250 450 400 450 400 500 350 500 400 450 400 450 400 500 400 450 1250 500 1250 450 1250 500 400 450 400 450 1250 500 400 450 400 450 400 500 400 450 400 450 400 500 350 500 400 450 400 450 400 500 400 450 400 450 400 450 400 500 400 450 400 450 400 500 400 450 400 450 400 450 400 500 400 450 400 450 400 450 450 450 400 450 400 450 450 450 400 450 400 450 1300 450 1250 450 450 450 400 450 400 450 400 450 450 450 9900 3500 1700 450 400 450 1300 450 400 450 400 450 450 450 400 450 400 450 450 400 450 450 400 450 400 450 450 450 400 450 1300 400 450 450 400 450 400 450 450 450 400 450 400 450 450 400 1300 450 1300 450 1250 450 450 400 450 450 1300 400 450 450 400 450 400 450 450 400 450 450 400 450 450 400 450 450 400 450 400 450 450 400 450 450 400 450 1300 450 400 450 400 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500 400 450 400 500 350 500 1250 450 400 500 350 500 400 450 400 450 400 500 350 500 400 450 1250 500 1250 450 1300 450 400 450 400 500 1250 450 400 450 400 500 400 450 400 450 400 450 400 500 400 450 400 450 400 500 400 450 400 450 400 450 400 500 400 450 400 450 400 450 450 450 400 450 400 450 400 500 400 450 400 450 400 450 450 450 400 450 400 450 400 450 450 450 400 450 400 450 1300 450 1300 400 450 450 400 450 400 450 450 450 400 450 9950 3450 1700 450 400 450 1300 450 400 450 450 400 450 450 400 450 400 450 450 450 400 450 400 450 450 450 400 450 400 450 1300 450 400 450 400 450 450 450 400 450 400 450 450 400 450 450 1250 450 1300 450 1300 400 450 450 400 450 1300 450 400 450 400 450 450 400 450 450 400 450 400 450 450 450 400 450 400 450 450 400 450 450 400 450 400 450 1300 450 400 450 450 400 1300 450 400 450 450 450 400 450 400 450 450 400 1300 450 450 400 1300 450 400 450 1300 450 400 450 450 400 450 450 400 450 400 450 450 450 400 450 400 450 450 400 1300 450 400 450 1300 450 400 450 450 400 450 450 1300 400 450 450 1250 450 450 400 450 450 1300 400 1300 450 400 450 450 400 450 450 400 450 450 400 450 450 400 450 400 450 450 400 450 450 400 450 450 400 450 450 1300 400 1300 450 1300 400 450 450 400 450 450 400 450 400 450 450 400 450 450 400 450 450 400 450 1300 450 1250 450 1300 450 400 450 450 400 450 450 400 450 400 450 450 400 450 450 400 450 450 400 450 450 400 450 450 400 450 400 450 450 400 450 450 400 1300 450 450 400 450 400 450 450 400 450 450 400 450 450 1300 400 450 400 450 450 400 450 450 400 450 450 400 450 450 400 450 400 450 450 400 450 450 400 450 450 400 450 450 400 450 400 450 450 450 400 1300 450 1300 400 450 450 1300 400 450 400 1350 400 1300 450The goal is to control my air conditioning with my raspberry, but I can not interpret the raw code.I don't undrestand why the results are not the same, and how interpret these codes?On some sites I found the following results and on other sites I think of completely different values3550 HDR_MARK 1600 HDR_SPACE550 BIT_MARK350 ZERO_SPACE500 BIT_MARK1200 ONE_SPACEThanks in advance for your help. What we'll do is then study what signals are sent to try and understand which part of the signal is for which parameter. These are the 'sync bits' and you can toss them out. Once compiled (gcc -o encode encode.c) this code should allow us to verify that the generated frame is equal to the one sampled. Hence, we can safely assume that it's the STOP bit of the burst data. Checksum: Ah. eg. Universal Remote for LG Air Conditioner 6711A20111k 6711A90031L 6711A90023C 6711A90023B 6711A90032T Conditioning Remote Control for All Most All LG Models New 4.0 out of 5 … Let's also make an observation : the part between the 3 "singular timings" is always the same, in all the recordings. It's a great time to upgrade your home theater system with the largest selection at eBay.com. By printing the _rawprocess[ ] array to the serial monitor, (as you can see in the second image of this step.) It is crucial to understand it. Hi your tutorial is amazing! This is because the required cooling will reduce when one sleeps. 84 sold. Timer B is active if the 2nd bit of the ON/OFF byte is 1. The method used here could work with other remote protocols (with adaptations). So it doesn't have any fancy display but it pretty much functions same as any AC remote with a display. However, I can't seem to find which protocol it uses, does someone have any clue ? I've been learning about IR protocols for quite some time now. Thanks The checksum will be studied later. So, to make our signal special, a PWM signal is used at a certain frequency. I was hoping that it implied the information was out there, but you're probably right - it'll be proprietary :-( I wonder if they have access to the info from the manufacturers or if they reverse engineered a bunch of remotes like you did? This Application will bring users comfort and intelligent experience.Users can get the status information of appliances and control them anywhere and anytime.The application supports for remote and local control,its interface is simple and powerful, in addition to the common functions of the remote control,it also has intelligent examination and fault push function. Every single touch will lead you to a very cool and convenient life. Now the A/C works again :), I am studying M. TECH. It probably wont show up well here, but for the first part of your sequence, for all 3 samples, I get: 0100000000000100000001110010000000000000000000000000000001. How to send and receive IR signals. Just occasionally though, along comes an IR remote whose protocol doesn’t follow that well-worn path [William Dudley] found himself in this position with an air-conditioning unit remote control. The infrared remote control was boring, who wants to press buttons. $7.99. Reply (The IDE is MikroC PRO for PIC). You just need to find one that will work with your AC unit. The brain is an ATtiny85 with pin6 driving an S8050 PNP transistor to open/close the circuit for the Air Conditioner power button on the remote. In the image, you can see the RAW samples spitted out by the TSOP ir receiver. Thus to be able to control it using our own device, the device will have to be able to mimic and send the same signals sent by the remote to the AC, such that, by pressing the “ON” butt… Thanks Targettio Your hint worked. This line should be ignored. In this Project we will explain how to remote control air conditioners (i.e. that's because every odd placement of the code is insignificant. These numbers indicate durations in microseconds. For the ease of exploiting the data I wrote a small c program to round the values and transform it to binary digits. The AC interprets the signals and converts them to instructions to either increase its coolness or reduce it, go OFF or come ON, etc. Thanks for the link. To get into electronics I chose a home automation project: a system allowing me to control and program both air conditioner units in my flat. While staying cool when it is hot outside is a priority, there is more to air conditioning than just bringing down the heat. This implies that when such a remote sends a signal, it sends the whole parameters set. After a few tests it appears that the checksum is for the payload part only (not including the introduction), and is the result of the simple sum of all bytes, keeping only one byte of the result (ignoring overflows). If reversing the bits the values obtained is: Which consequently validates the first hypothesis concerning timing values used for 0 and 1 :) Timer A: The timers are coded in multiple positions: first avalue is used to indicate that the A timer is on, then a second one is used to indicate the timer value.

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