Boardoza MDBT42TV AT Bluetooth 5 1 Module Breakout Board
The Boardoza MDBT42TV-AT Bluetooth 5.1 Module Breakout Board is a compact and energy-efficient wireless communication solution designed for embedded systems, IoT applications, and portable devices. Powered by the Raytac MDBT42TV-AT module, this board delivers reliable Bluetooth 5.1 connectivity with minimal power consumption, making it ideal for low-power wireless data transfer. This module features a UART interface in peripheral/slave mode, allowing simple integration into existing serial-based systems. Its integrated chip antenna, compact form factor, and high performance make it ideal for projects that demand seamless Bluetooth communication with minimal hardware complexity.

Key Features
- Bluetooth 5.1 Connectivity: High-speed, low-power wireless communication for modern IoT devices.
- Integrated Chip Antenna: Optimized RF design ensures stable and compact signal performance.
- High Data Throughput: Supports up to 2 Mbps for fast and efficient data exchange.
- Extended Range: Achieves up to +4 dBm transmit power and –96 dBm sensitivity.
- Low Power Operation: Ultra-low TX and RX currents maximize battery life.
- UART Interface: Enables simple and reliable data communication in embedded systems.
- Ample Memory Resources: 192 kB Flash and 24 kB RAM support BLE stack and custom firmware.
- Optimized for IoT: Suitable for smart sensors, beacons, portable devices, and wireless control systems.
Technical Specifications
- Model
- Raytac MDBT42TV-AT
- Manufacturer
- Raytac Corporation
- Bluetooth Version
- 5.1 (Low Energy)
- Frequency Range
- 2.36 GHz – 2.5 GHz
- Data Rate
- Up to 2 Mbps
- TX Power
- +4 dBm
- RX Sensitivity
- –96 dBm
- Interface
- UART (Peripheral/Slave Mode)
- Memory
- 192 kB Flash / 24 kB RAM
- Input Voltage Range
- Input Voltage Range: 1.7V – 3.6V Typical Operating Voltage: 3.3V Power Consumption (RX): 3.5 mA – 11.2 mA Power Consumption (TX): 2.1 mA – 15.4 mA
- Functions
- Bluetooth UART Communication Module
- Antenna
- Integrated Chip Antenna
- Operating Temperature
- –40°C ~ +85°C
- Board Dimensions
- 20mm x 20mm
Board Pinout
( J1 ) UART & Power Connector
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | 3V3 | Power supply input (1.7V – 3.6V) |
| 2 | RX | Module UART receiver input |
| 3 | TX | Module UART transmitter output |
| 4 | RESET | Configurable as system RESET pin |
| 5 | PD | Active-high with internal pull-up to disable hardware UART (default: disabled) |
| 6 | GND | Ground |
( J2 ) Function Pins
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | FLASH DEFAULT | Active-low with internal pull-up. Holding low for 0.48s–1s resets the module to factory defaults. |
| 2 | WAKEUP | Logic input to wake the system from deep sleep mode. |
Datasheet
Download (PDF)Support
For technical questions, documentation and issue reports, use the GitHub repository or write to us directly.



