IR Receiver Module 38kHz (KY-22)

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 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 } More info can be founded here