JDY-40 2.4GHz Wireless Serial Port Transceiver Module

JDY-40 2.4GHz Wireless Serial Port Transceiver Module is a low-power, high-performance module designed for wireless serial communication between two microcontrollers or devices. It operates in the 2.4GHz ISM band and uses GFSK modulation, offering stable and long-distance communication. Ideal for IoT projects, wireless data transfer, and embedded system communications.

Key Features:

• Wireless Serial Communication: Enables wireless UART-to-UART data transfer.
• 2.4GHz ISM Band: Operates in global unlicensed frequency band.
• Long Communication Range: Offers stable range up to 100 meters in open area.
• Low Power Consumption: Suitable for battery-powered embedded systems.
• Simple Command Interface: Supports AT commands for configuration.

Technical Specifications:

• Operating Frequency: 2.4GHz (2400–2483.5 MHz)
• Modulation Type: GFSK
• Supply Voltage: 3.3V DC
• Current Consumption: 15mA (transmit), 10mA (receive)
• Baud Rate: 1200 to 115200 bps (default 9600)
• Operating Range: Up to 100 meters (open field)
• UART Interface: 3.3V TTL level
• Antenna Type: Onboard PCB antenna

Mechanical Specifications:

• Module Size: 15mm × 27mm
• Number of Pins: 6 (VCC, GND, TXD, RXD, SET, EN)
• Weight: Approx. 2 grams
• Mounting Type: Through-hole or direct solder

Pinout and Wiring:

• VCC: Connect to 3.3V supply
• GND: Ground
• TXD: Transmit data (connect to RX of MCU)
• RXD: Receive data (connect to TX of MCU)
• SET: Enter AT command mode when pulled low
• EN: Module enable pin (active high)

Datasheet and User Manual:

• Download JDY-40 Datasheet (PDF)

Applications:

• Wireless UART Communication: Serial port data transfer between MCUs.
• Remote Control Systems: Command and control of embedded devices.
• Sensor Data Transmission: Send real-time data from remote sensors.
• IoT Devices: Wireless communication in Internet of Things applications.
• Smart Home Projects: Control and monitor home appliances wirelessly.

Equivalent Models:

• JDY-41: Similar range with compact design and UART interface
• HC-12: Longer-range 433MHz alternative for serial communication
• NRF24L01+ Module: SPI-based wireless transceiver with higher flexibility

Package Includes:

• 1 x JDY-40 2.4GHz Wireless Serial Port Transceiver Module