Remote control switch 2.4G module JDY-41 wireless serial transparent transmission module transceiver – KSH 350 at HIMASTORES Mombasa – best electronics in Kenya

Remote control switch 2.4G module JDY-41 wireless serial transparent transmission module transceiver

SKU: HMJ792 Category: Intergrated circuits
KSH 350.00
Out of Stock

Product Description

JDY-41 2.4G Wireless Serial Transparent Transmission Module

Remote Control Switch and Transceiver for Arduino Projects

The JDY-41 is a 2.4G wireless serial module designed for transparent transmission and remote control switching. It enables wireless UART communication and direct IO switch control without external MCU.

Dual Functionality Serial passthrough and remote control switching
Long Range - Reliable communication up to 160 meters in open space
Versatile IO Control - 8 configurable GPIO pins for switch applications
Operating voltage is 2.2V to 3.6V - use 3.3V logic levels
Pull SET pin low to enter AT command configuration mode
Not 5V tolerant - level shifting required for 5V microcontrollers

Technical Specifications

ParameterValue
ModelJDY-41
Frequency2.4GHz ISM band
Transmit PowerUp to 12dB
Receive Sensitivity-96dB
LineofSight Range160 meters
UART Baud Rate1200 to 38400 bps
Tx Current40mA
Rx Current24mA
Sleep Current10uA

= Key Features =

Transparent Serial Mode Direct UART passthrough without AT commands

Learning Remote Control - Supports ID learning for selective response

Acknowledgment Mode - Confirms data receipt at destination

Configurable IO Pins - 8 GPIO pins for switch/control applications

Low Power Sleep - 10uA sleep current for battery operation

= Applications =

  1. Wireless remote control switches
  2. Serial UART cable replacement
  3. IoT and smart home control
  4. Robotics and telemetry
  5. Sensor data transmission
No MCU Required for Switching - Direct GPIO control
Compact Size - Small footprint with onboard antenna

√ Configurable via AT commands

√ Supports pointtopoint and broadcast modes

√ Compatible with 3.3V logic systems

Pin Configuration and Wiring

PinNameFunction
Pin 1-8GPIO1-8Configurable input/output pins
Pin 9VCC2.2V to 3.6V power
Pin 10RXDSerial receive input
Pin 11TXDSerial transmit output
Pin 12SETConfiguration mode (low to enter)
Pin 13CSChip select / sleep control
Pin 14GNDGround

> Connect VCC to 3.3V supply only

Use TX to host RX, RX to host TX for serial connection
Do not connect to 5V logic directly - use level shifter

Configuration and Use

Enter AT command mode:

  1. Pull SET pin low
  2. Send AT commands via UART
  3. Set baud rate, channel, ID

Transparent mode:

  1. SET pin high
  2. Data sent to RXD transmits wirelessly
  3. Received data outputs on TXD
Default baud rate is 9600
Use terminal software for AT command testing
Ensure SET is released after configuration

Troubleshooting

No communication:

  • Check 3.3V power supply
  • Verify RX/TX crossover
  • Avoid 5V logic connection

Short range:

  • Ensure antenna unobstructed
  • Reduce interference sources
  • Avoid metal enclosures