Boardoza
Communication

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.

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Boardoza MDBT42TV AT Bluetooth 5 1 Module Breakout Board – 1
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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 NumberPin NameDescription
13V3Power supply input (1.7V – 3.6V)
2RXModule UART receiver input
3TXModule UART transmitter output
4RESETConfigurable as system RESET pin
5PDActive-high with internal pull-up to disable hardware UART (default: disabled)
6GNDGround

( J2 ) Function Pins

Pin NumberPin NameDescription
1FLASH DEFAULTActive-low with internal pull-up. Holding low for 0.48s–1s resets the module to factory defaults.
2WAKEUPLogic 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.

Boardoza MDBT42TV AT Bluetooth 5 1 Module Breakout Board | Boardoza