YS-IRTM 38kHz Serial Infrared Transmitter and Receiver Module with NEC Protocol Support

YS-IRTM 38kHz Serial Infrared Transmitter and Receiver Module with NEC Protocol Support
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  • Product Code:SQ3623
  • Availability: 1000
  • $1.29
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  • Ex Tax:$1.29
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Tags: YS-IRTM, infrared serial module, 38kHz IR module, NEC protocol module, UART IR transmitter, IR receiver decoder, Arduino IR module, smart home IR control, serial infrared communication, NEC encoding module

The YS-IRTM is a serial infrared transmitter and receiver module designed for bidirectional infrared communication, encoding, and decoding in embedded control and smart automation systems. The module operates at a 38kHz carrier frequency and communicates with a host microcontroller through a UART TTL serial interface, using a default baud rate of 9600bps with an 8N1 data format. This serial architecture allows the module to handle infrared encoding and decoding internally, reducing the processing burden on the host controller compared with raw IR LED and receiver circuits.

The module supports the NEC infrared protocol, a widely adopted standard for consumer remote controls that uses pulse-distance modulation with a 38kHz carrier and either 8-bit or extended 16-bit address and command structures. It is compatible with common NEC encoding chips including uPD6121, uPD6122, TC9012, PT2221, PT2222, SC6121, SC6122, and SC9012, enabling it to control a broad range of televisions, fans, and other infrared-controlled electrical equipment.

The YS-IRTM operates from a 4.5V to 5.2V DC supply with a maximum current draw of 50mA, and its infrared transmission range is rated at 6 to 10 meters in open air, with vendor testing confirming stable control at approximately 8 meters. The module measures 27mm × 17mm and is supplied as a compact bare board suitable for integration into IoT devices, industrial smart equipment, MP3 controllers, electronic building-block kits, and infrared wireless switch designs.

YS-IRTM infrared serial module Application

  1. Smart home and IoT infrared control systems
  2. Intelligent industrial equipment with IR remote functions
  3. MP3 player and audio device controllers
  4. Electronic building-block and educational kits
  5. Infrared wireless switch design
  6. IR remote control decoding and replication projects
  7. Television, fan, and appliance control applications
  8. Infrared wireless data communication between devices

YS-IRTM infrared serial module Specifications

  1. Product Model: YS-IRTM
  2. Module Type: Serial infrared transmitter and receiver
  3. Carrier Frequency: 38kHz (operating range 36kHz to 42kHz)
  4. Protocol Support: NEC infrared protocol
  5. Compatible Encoding Chips: uPD6121, uPD6122, TC9012, PT2221, PT2222, SC6121, SC6122, SC9012
  6. Communication Interface: UART TTL serial
  7. Data Format: 8N1
  8. Default Baud Rate: 9600bps
  9. Supply Voltage: 4.5V to 5.2V DC
  10. Maximum Current: 50mA
  11. IR Transmission Range: 6 to 10 meters (open air)
  12. Board Dimensions: 27mm × 17mm
  13. Pin Pitch: 2.54mm (per module class)

Features

  1. Integrated infrared transmitter and receiver in a single module
  2. 38kHz carrier frequency with an operating range of 36kHz to 42kHz
  3. NEC protocol encoding and decoding support for broad remote-control compatibility
  4. UART TTL serial interface for direct microcontroller connection
  5. Default 9600bps baud rate with 8N1 data format
  6. 4.5V to 5.2V DC supply with a maximum current of 50mA
  7. IR transmission range of 6 to 10 meters in open air
  8. Compatible with common NEC encoding chips including uPD6121 and TC9012
  9. Compact 27mm × 17mm board for space-constrained designs
  10. Onboard infrared emission head expansion interface
  11. Suitable for controlling televisions, fans, and other IR appliances
  12. Supports infrared wireless data communication and control applications

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