MDBT50Q BLE Module
Overview
The Boardoza MDBT50Q is an industrial-grade, high-performance Bluetooth Low Energy (BLE) SoC module powered by the Nordic Semiconductor engine. Supporting the Bluetooth 5.2 standard, this module is engineered for applications requiring extended wireless range, high throughput, and ultra-low power consumption.
With its integrated 32-bit architecture and advanced power management features, the MDBT50Q serves as a robust wireless communication bridge for battery-operated IoT devices, industrial automation interfaces, and smart sensor networks.
Core Technical Specifications
Wireless Protocol: Bluetooth 5.2 (Low Energy).
Operating Voltage: Versatile supply range from 3.3V to 5V DC.
Host Interface: Standard UART with Hardware Flow Control (CTS/RTS).
Memory Resources: Large-scale 512 KB RAM for complex application logic.
Thermal Tolerance: Extended industrial range from -40°C to +105°C.
Analog Capability: Integrated 10-bit resolution ADC with a 200ms refresh cycle.
Physical Footprint: 40 mm x 40 mm compact PCB design.
Key Engineering Features
Advanced BLE 5.2 Ecosystem
The MDBT50Q leverages the Bluetooth 5.2 stack to provide long-range communication and high-speed data transfer rates. The module is optimized for high interference immunity, ensuring stable links in RF-dense environments such as smart factories and medical facilities.
Intelligent Power Management
The module features sophisticated power-saving modes, including an active-high UART_PD (Power Down) pin that allows developers to disable the UART hardware interface to minimize quiescent current during idle periods. Furthermore, the WAKEUP pin provides a deterministic exit strategy from deep-sleep states based on programmable system events.
Integrated ADC and System Reliability
Unlike standard BLE modules, the MDBT50Q integrates a continuously active 10-bit ADC, allowing for real-time analog sensing without additional MCU overhead. System integrity is further enhanced by an active-low hardware RESET pin and a dedicated FLASH DEFAULT trigger for secure system recovery and factory reset operations.
Hardware Interface & Pinout
The module exposes two primary headers (J1 and J2) for power and signal interfacing.
J1: Primary Communication and Power
5V: Positive Power Supply Input.
UART_TX: Asynchronous Serial Data Transmitter.
UART_RX: Asynchronous Serial Data Receiver.
UART_CTS: Clear to Send flow control signal.
UART_RTS: Request to Send flow control signal.
GND: Common System Ground.
J2: System Control and Analog Sensing
ADC: 10-bit Analog-to-Digital input, updated every 200ms.
UART_PD: Active-high input with internal pull-high to disable hardware UART.
FLASH DEFAULT: Active-low system recovery trigger (0.48s ≦ logic low ≦ 1s).
RESET: Active-low hardware system reset.
WAKEUP: Selective output logic for deep-sleep wake-up actions.
Applications
Industrial IoT (IIoT): Long-range telemetry and wireless sensor data aggregation.
Smart Energy: Remote monitoring of utility meters and power distribution nodes.
Medical Devices: Secure, low-power data transmission for wearable health monitors.
Asset Tracking: High-precision proximity sensing and beaconing in logistics.
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