Using the YS-IRTM with an Arduino Uno Picked up a YS-IRTM IR Transmitter/Receiver module to do some testing for a project. There's not a lot of details on it but eventually came across two very important sources:

Translated Module Datasheet: https://docplayer.net/101050357-Nec-infrared-codec-module-ver1-0-ys-irtm.html

Examples: https://forum.arduino.cc/index.php?topic=359707.msg2861077#msg2861077

I've been trying to get this working for a few days and so far haven't gotten anything. Need to reach out before I pull out whatever hair I have left.

BTW, new to this and may have easily missed something.

Wiring Diagram

Arduino Uno    YS-IRTM
5v          -&gt; 5v
GND         -&gt; GND
0 RX        -&gt; TXD
1 TX        -&gt; RXD


Code

int icb = 0;
SoftwareSerial ir_mod(0, 1);

void setup(){
  Serial.begin(115200);
  while(!Serial){}
  Serial.println("Setup IR Serial");
  ir_mod.begin(9600);
  while(!ir_mod){}
  Serial.println("IR Serial Ready");
}

void loop(){
  if(ir_mod.available() &gt; 0){
    icb = ir_mod.read();
    Serial.print(" 0x");
    Serial.println(icb, HEX);
  }
}


Current Output

Setup IR Serial
IR Serial Ready


Nothing will happen if I try to interact with the Receiver with any IR Transmitter (like a TV/AC Remote) but if I disconnect and reconnect the power, I get " 0xFFFFFFFF". Then nothing.
Default baud for module is 9600 unless you previous set it diffrent as per the datasheet A1 F3 ## 00 00 I believe