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.
| Front Side | Back Side |
|---|---|
![]() |
![]() |
- 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.
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: 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
| 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 |
| 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. |
Raytac MDBT42TV-AT Datasheet.pdf
- V1.0.0 - Initial Release
If you have any questions or need support, please contact [email protected]
This work is licensed under a
Creative Commons Attribution-ShareAlike 4.0 International License.



