[Orange pi zero ir receiver and transmitter]

On 6/1/2018 at 5:28 AM, jscax said:

Yeah, YS-IRTM is working ok using the OPI Zero UART (thanks armbian ), now I can control my TV.

 

The problem is that YS-IRTM works with NEC protocol only.

I actually need to control a Samsung AC unit which uses Samsung protocol.

 

YS-IRTM ==> https://www.aliexpress.com/item/5V-IR-Infrared-Remote-Decoder-Encoding-Transmitter-Receiver-Wireless-Module-IR-Decoder-Module/32528109291.html

 

http://www.datasheetcatalog.com/info_redirect/datasheet/nec/UPD6122G-002.pdf.shtml => UPD6121 ====> NEC only

 

Differences between IR remote protocols:

http://www.techdesign.be/projects/011/011_waves.htm

 

NEC:

 

SAMSUNG:

 

So, I was guessing that maybe GPIO can handle this kind of specific 1/0 switching and timing.

And should be great if does exist a library for this, because seems like something very standardized.

 

I'd expect something like:

Ir ir = new Ir()
ir.setGpioPin(x)
ir.sendSamsung(hexcode)

 

But maybe it's all wrong

 

 

Hello jscax,

 

Are you saying that the YS-IRTM uses the "UPD6121".    I thought it used a STC11F02 microcontroller.   I am frustrated about finding information on the module I bought - looks like the one in your link to Aliexpress.    STC11F02  is an 8051 micro - I will see if I can use STC software to get the embedded firmware, and try to disassemble it.