I have an Arduino Uno Rev3, IR Receiver KY022, IR transmitter KY005 module. I got the signals from the AC for each function using the IR receiver. I sent the same signal from the IR transmitter to be received by IR receiver to make sure that the IR transmitter is submitting the same signal. But the AC is not being activated by the IR transmitter.
Post your annotated schematic, be sure to show all connections.
I suspect you didn't. AC control codes have nothing to do with those for controlling any audio or video equipment. AC codes are much more complex and longer as they contain all information about the AC's current mode such as temperature, fan power, flow direction, etc. as there is usually a checksum to verify the validity of the code.
I am sure I got the right signals. for my LGAC, I have a specific format for writing the signal. I know the address bits, On Off, Mode, Fan, Temperature...., and the check sum validity bits. I'm not sure of how I am sending the signal. The libraries are too messy and complicated to understand.
Make sure there is no frequency mismatch. While most AC remotes operate around 38 kHz, there can be variations.
How can I know about the frequency of the remote?
The only thing found in the back is its model number: AKB74955603. It is an LG AC.
I highly recommend you get a copy of the Arduino Cookbook and read it from cover to cover. After that I think you will have a better understanding of what you are trying to do and the Arduino in general.
There is nothing about IR transmitters in the Arduino Cookbook.
Did you read chapter 10 starting page 396? That is in the 3d edition.
turns out I was reading the 1st edition. Thanks I'll look into it. it is in section 10.3
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.