Description

KY-022 SPECIFICATIONS

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

CONNECTION DIAGRAM

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

Infrared receiver KY-022 Arduino connection diagram

KY-022 ARDUINO CODE

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
}