This module consists of a 1838 IR receiver, a 1kΩ resistor, an LED and 3 male header pins.
| Operating Voltage | 2.7V to 5.5V |
| Operating Current | 0.4mA to 1.5mA |
| Reception Distance | 18m |
| Reception Angle | ±45º |
| Carrier Frequency | 38KHz |
| Low Level Voltage | 0.4V |
| High Level Voltage | 4.5V |
| Ambient Light Filter | up to 500LUX |
Connect the module power line (middle) and ground (-) to +5 and GND on the Arduino respectively. Also connect the signal pin (S) to pin 11.
Line up the IR receiver and transmitter, place them facing each other.
| KY-012 | Arduino |
|---|---|
| S | Pin 11 |
| middle | +5V |
| – | GND |
The following Arduino sketch uses the IRremote library to receive and process infra-red signals. Use the KY-005 IR transmitter module or a IR remote control to send data to this module.
Links to the required libraries can be found in the Downloads section below.
#include <IRremote.h>
int RECV_PIN = 11; // define input pin on Arduino
IRrecv irrecv(RECV_PIN);
decode_results results; // decode_results class is defined in IRremote.h
void setup() {
Serial.begin(9600);
irrecv.enableIRIn(); // Start the receiver
}
void loop() {
if (irrecv.decode(&results)) {
Serial.println(results.value, HEX);
irrecv.resume(); // Receive the next value
}
delay (100); // small delay to prevent reading errors
}
