Description KY-022 Specifications This module consists of an 1838 IR receiver, a 1kΩ resistor, and a LED. It works together with the KY-005 IR transmitter module. Compatible with popular electronic platforms like Arduino, Raspberry Pi, and ESP8266. Operating Voltage 2.7 to 5.5V Operating Current 0.4 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 KY-022 Connection Diagram Connect the Power line (middle) and ground (-) to 5 and GND respectively. Connect signal (S) to pin 11 on the Arduino. Line un IR receiver and transmitter. KY-012 Arduino S Pin 11 middle 5V – GND 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 to serially send data to this module. Links to the required libraries for the KY-022 Arduino example sketch 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 }
