Infrared Transmitter and Receiver Wireless Audio Transmission Module
Review: 5 - "A masterpiece of literature" by John Doe, written onMay 4, 20020
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Infrared Transmitter and Receiver Wireless Audio Transmission Module

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  • Product SKU: KG365
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₹ 559 ₹ 699
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Highlights
  • Original, High Quality
  • KitsGuru Warranty
  • Wireless IR Audio Transmission
  • Not DIY kit
  • 9V battery not included
  • Align within 1–2m
  • For educational use
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Specification

Description

Infrared Transmitter and Receiver Wireless Audio Transmission Module

This module demonstrates the principle of infrared audio transmission. It consists of a transmitter and a receiver module. The transmitter converts audio signals into modulated infrared light, which is detected by the receiver and converted back into sound. This module is ideal for educational purposes, hobby projects, and electronics learning.

Technical Specifications

  • Transmission Distance: 1–2 meters (line of sight)
  • Transmitter Operating Voltage: DC 9–12V
  • Receiver Operating Voltage: DC 4–12V
  • Transmitter PCB Size: 19 × 25 mm
  • Receiver PCB Size: 17 × 39 mm
  • Supported Speaker Output: 0.5W – 10W
  • Amplifier IC: LM386

Circuit Diagram

Infrared Transmitter and Receiver Wireless Audio Transmission Module

Working Principle

Transmitter Side: The audio signal is input from a 3.5mm headphone jack and driven by the S8050 transistor, which powers the infrared emission diode. The audio signal is transmitted as modulated infrared light. Receiver Side: The infrared receiver diode captures the transmitted signal and converts it into an audio signal. The LM386 amplifier chip then amplifies the signal to drive a small speaker.

Component List

Transmitter Components

  • R1 – 1/4W Resistor 100Ω
  • R2 – 1/4W Resistor 51kΩ
  • D1 – 3mm Diode
  • D2 – 5mm IR Emission Diode
  • C1 – Ceramic Capacitor 103
  • C2 – Electrolytic Capacitor 16V 100µF
  • C3 – Electrolytic Capacitor 16V 4.7µF
  • Q1 – S8050 NPN Transistor
  • J1 – 6F22 9V Battery Snap Wire
  • J2 – 3.5mm Audio Jack
  • PCB – 19 × 25 mm board

Receiver Components

  • R1 – 1/4W Resistor 1kΩ
  • R2 – 1/4W Resistor 620kΩ
  • D1 – 3mm Photodiode
  • D2 – 5mm IR Receiver Diode
  • C2 – Electrolytic Capacitor 16V 10µF
  • C3 – Electrolytic Capacitor 224
  • C4, C6 – Ceramic Capacitors 104
  • C5, C7 – Electrolytic Capacitors 16V 100µF
  • IC – LM386 Amplifier
  • SP – 1W / 8Ω Small Speaker
  • J – 6F22 9V Battery Snap Wire
  • Connector – KF301-2P terminal
  • PCB – 17 × 39 mm board

Notes

  • This is not a DIY kit.
  • 9V battery power supply is not included. You must arrange it separately.
  • Ensure that the transmitter and receiver are aligned within 1–2 meters for best performance.
  • For educational and experimental use only, not for professional audio applications.

Physical Attributes

  • Transmitter L x W x H (mm): 25 x 19 x 13
  • Weight (gm) : 8
  • Receiver L x W x H (mm): 39 x 17 x 13
  • Weight (gm) : 27

Package Includes

  • 1 x Infrared Transmitter and Receiver Wireless Audio Transmission Module

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