JDY-29 Transparent Bluetooth 5.2 Module (High-Speed Wireless Serial Data Pass-Through)
Upgrade your industrial automation setups and custom electronics with cutting-edge wireless capabilities using the high-performance JDY-29 Transparent Bluetooth 5.2 Module. Engineered for ultra-reliable, high-speed data transmission, this module utilizes the latest Bluetooth 5.2 standard to enable completely seamless, transparent wireless serial pass-through between your microcontrollers and smart devices.
Unlike older, high-latency Bluetooth versions, the JDY-29 is heavily optimized for lightning-fast connection speeds, massive communication ranges, and superior resistance to wireless interference. Acting as a solid-state wireless bridge, it instantly passes standard UART serial data back and forth through the air without modifying your core data packets. It serves as the definitive choice for remote robotics control interfaces, industrial telemetry tracking, smart home wireless hubs, and cable-free microcontroller debugging links.
Key Features
Advanced Bluetooth 5.2 Protocol: Leverages the latest high-stability wireless standard to deliver faster pairing times, reduced data latency, and increased throughput compared to legacy modules.
Seamless Transparent Pass-Through: Works out of the box as a virtual serial cable, allowing you to stream TX and RX data lines straight through the air without needing complex wireless protocol programming.
Expansive Communication Range: Features an optimized onboard PCB trace antenna capable of maintaining stable point-to-point data links up to a massive 80-meter distance in open space.
Comprehensive AT Command Configuration: Packed with a rich set of hardware control parameters accessible via simple AT commands, giving you total freedom to customize the broadcast device name, baud rate, pairing passcode, and transmission power levels.
Ultra-Low Power Optimization: Designed with a smart low-energy sleep grid that drops standby current consumption dramatically, making it ideal for continuous-monitoring battery-powered devices.
Broad Operating System Support: Interfaces effortlessly with Android smartphones, iOS devices, tablets, desktop computers, and master-slave microcontroller networks.
Technical Specifications
Feature | Specification |
Model Variant | JDY-29 |
Bluetooth Version | Bluetooth 5.2 Protocol |
Working Frequency Band | 2.4 gigahertz ISM Band |
Operating Voltage Range | 1.8V to 3.6V DC Nominal |
Communication Interface | Standard TTL Level UART Serial |
Default Serial Baud Rate | 9600 bps (Configurable up to 115200 bps via AT commands) |
Transmission Distance | Up to 80 meters (Open, line-of-sight environment) |
Antenna Type | High-Gain Onboard PCB Trace Antenna |
Module Footprint Dimensions | 27 mm x 13 mm x 2 mm |
Hardware Wiring & Interface Mapping
The module features an easy-to-integrate surface-mount edge layout that breaks out essential UART serial communication paths for boards like Arduino, ESP32, STM32, and Raspberry Pi:
VCC: Main power input rail. Connects to a stable +3.3V DC power source.
GND: System Common Ground Reference.
TXD (Transmit Data): Serial data output pin. Connect this directly to the Receive (RX) digital pin of your microcontroller.
RXD (Receive Data): Serial data input pin. Connect this directly to the Transmit (TX) digital pin of your microcontroller.
STATE (Status Indicator): Dedicated output pin to track the active wireless link. Can be connected to an external LED or microcontroller pin to identify if the Bluetooth connection is actively paired or searching.
Common Applications
Wireless Robotic Telemetry Control: Mount on autonomous wheeled rovers or industrial robotic chassis to stream sensor metrics or send directional steering adjustments straight from a smartphone app.
Cable-Free Firmware Debugging: Link to remote data logs, allowing engineers to pull diagnostic sensor arrays from sealed industrial enclosures without plugging in physical USB wires.
Smart Home Automation Switches: Integrate into lighting modules, automated gate controllers, or security panels to manage home infrastructure wirelessly over localized networks.
Handheld Data Terminals: Ideal for compact, portable monitoring badges, barcode scanners, and mobile instruments that require fast wireless pairing with central processing hubs.
💡 Pro-Engineering Setup Tip: When integrating the JDY-29 with standard 5V microcontrollers like the ATmega328P or Arduino Uno, it is highly recommended to place a simple voltage divider circuit (using two small resistors) on the module's RXD line. This safely drops the incoming 5V digital signal down to a safe 3.3V level, preventing over-voltage stress on the high-efficiency Bluetooth communication chip.
Package Includes:
1 x JDY-29 Transparent Bluetooth 5.2 Module (Core Surface-Mount Board)