Δέκτης υπερύθρων (Infrared Receiver) KY-022

Infrared IR Sensor Receiver Module KY-022

Sensors
DET572
Part.No: KY-022
€2.25
In Stock
Immediate Dispatch
KY-022 Infrared IR Receiver Module — 37.9 KHz carrier frequency, 18 m receiving range, 2.7–5.5 V wide supply voltage. Compatible with Arduino, ESP32 and Raspberry Pi projects. Plug-and-play 3-pin interface based on the 1838 IR receiver IC.

 

The KY-022 Infrared IR Receiver Module (MPN: KY-022) is a compact, ready-to-use sensor module designed to receive standard IR remote-control signals. Built around the widely adopted 1838 infrared receiver IC, it demodulates 37.9 KHz carrier signals and outputs a clean digital pulse directly to any microcontroller — making it the go-to choice for adding remote-control functionality to Arduino, ESP32, or Raspberry Pi projects without any external components.

Key Features

  • Long Receiving Range – 18 m: Detects IR signals from up to 18 metres away → ideal for room-scale remote-control applications.
  • 37.9 KHz Carrier Frequency: Matches the most common IR remote standard (NEC, RC5, Sony SIRC) → works out-of-the-box with the majority of TV and appliance remotes.
  • Wide Supply Voltage 2.7 – 5.5 V: Operates safely at both 5 V (Arduino) and 3.3 V (ESP32, Raspberry Pi) logic levels → no level-shifter required.
  • Wide Receiving Angle – 90°: ±45° cone of acceptance → the remote does not need to be precisely aimed at the sensor.
  • High Ambient Light Immunity: Functions under up to 500 lux illumination with built-in electromagnetic-interference shielding → reliable performance under normal indoor lighting.
  • Compact Form Factor – 6.4 × 7.4 × 5.1 mm: Tiny footprint → fits easily into enclosures, custom panels, or breadboard prototypes.

Pinout & Wiring

PINSymbolDescription
1S (OUT)Digital signal output — connect to a digital input pin on your microcontroller
2GNDGround — connect to GND
3VCCPower supply — 2.7 V to 5.5 V

Wiring note: Connect VCC to the 5 V (or 3.3 V) rail, GND to ground, and the S pin to any digital input of your board. With Arduino, use the popular IRremote library and call IrReceiver.begin(PIN, ENABLE_LED_FEEDBACK) to start decoding signals immediately.

Compatibility

  • Arduino UNO / Nano / Mega (5 V): Direct connection — VCC to 5 V, S to any digital pin. Full compatibility with the IRremote and IRLib2 libraries.
  • ESP32 / ESP8266 (3.3 V): Connect VCC to 3.3 V; the 2.7 V minimum rating guarantees stable operation. Use the ESP32 IRremote port.
  • Raspberry Pi (3.3 V GPIO): Connect VCC to the 3.3 V header pin and S to any GPIO; use the LIRC or pigpio library for decoding.

Typical Applications

  • DIY universal remote receiver: Decode signals from any household remote to control smart-home relays, LED strips, or media centres built on Arduino or ESP32.
  • Home automation: Repurpose an old TV remote to trigger scenes, adjust brightness, or control motorised blinds — no extra hardware needed.
  • Robotics & RC toys: Add wireless directional control to a robot car or drone using a standard remote handset.
  • Consumer electronics replacement: Restore IR reception to TVs, set-top boxes, air conditioners, and disc players whose original receiver has failed.
  • Learning & education: Perfect starter module for students learning about digital communication protocols (NEC, RC5) and interrupt-driven programming on Arduino.

Technical Specifications

ParameterValue
InterfaceDigital (3-pin)
Working Voltage2.7 – 5.5 V
Carrier Frequency37.9 KHz
Receiving Range18 m
Receiving Angle90° (±45°)
Max Ambient Light500 lux
IR Receiver IC1838
Dimensions6.4 × 7.4 × 5.1 mm
MPNKY-022

FAQ

Q: Which IR protocols does the KY-022 support?
A: The 1838 receiver IC demodulates any signal transmitted at 37.9 KHz — this covers the most popular protocols (NEC, RC5, RC6, Sony SIRC). Protocol decoding is handled entirely in software by your library of choice.

Q: Can I use the KY-022 directly with a 3.3 V ESP32 without a level shifter?
A: Yes. The minimum operating voltage is 2.7 V, so powering it from the 3.3 V rail is well within spec and the digital output will be read correctly by 3.3 V GPIO pins.

Package Contents: 1 × KY-022 Infrared IR Receiver Module

⚠ Note: Keep the IR receiver lens free from dust and direct sunlight. Strong incandescent or halogen lighting may reduce effective range below the rated 18 m.
Σχετικά Προϊόντα
16 other products in the same category:
Product added to wishlist
Product added to compare.