MDBT50Q-P1M nRF52840 Based BLE Module

The MDBT50Q-P1M is a compact Bluetooth Low Energy module based on the Nordic nRF52840 SoC, delivering dual-mode wireless connectivity with integrated ARM Cortex-M4 processor for IoT and embedded applications. Professional engineers and product developers use this module to rapidly prototype wearables, smart home devices, industrial sensors, and healthcare monitoring systems requiring certified BLE 5.2 connectivity. This module solves the critical challenge of integrating complex wireless protocols into space-constrained designs while maintaining ultra-low power consumption and regulatory compliance.

Product Overview

The MDBT50Q-P1M module combines the powerful Nordic nRF52840 chipset with a pre-certified antenna design, eliminating the need for complex RF tuning and FCC certification delays. The module operates on a single 3.3V supply and integrates a 32-bit ARM Cortex-M4 processor running at 64 MHz, 1 MB flash memory, and 256 KB RAM, enabling sophisticated application logic directly on the module without external microcontrollers. The integrated DC-DC converter provides efficient power management, achieving standby currents as low as 2 microamps, making it ideal for battery-powered IoT deployments.

This module supports Bluetooth 5.2 specifications with extended range capabilities up to 240 meters in open space, offering both central and peripheral roles for flexible network topologies. The MDBT50Q-P1M features a ceramic antenna with integrated matching network, pre-loaded with Nordic's SoftDevice stack, and supports over-the-air firmware updates. The compact form factor and castellated mounting pads enable seamless integration into custom PCBs, while the module's industrial temperature range from -40 to +85 degrees Celsius ensures reliability in demanding environments.

Key Specifications

Specification	Details
Product Type	Bluetooth Low Energy Module
Chipset	Nordic nRF52840
Processor	ARM Cortex-M4, 64 MHz
Memory	1 MB Flash, 256 KB RAM
Bluetooth Version	Bluetooth 5.2 Dual Mode
Frequency Band	2.4 GHz ISM Band
Transmission Power	+8 dBm maximum
Range	240 meters line of sight
Supply Voltage	3.3V single supply
Current Consumption	Standby 2 microamps, Active 5-10 mA
Operating Temperature	-40 to +85 degrees Celsius
Module Size	15.5 x 13.5 x 2.3 mm
Antenna	Integrated ceramic antenna
Origin	Original/Authentic
Warranty	7 days on manufacturing defects
Shipping	1-5 days from Bengaluru
Delivery	7-8 days across India
Support	24/7 via Email and WhatsApp

Key Features

• Nordic nRF52840 SoC with 64 MHz ARM Cortex-M4 processor for on-module application execution without external MCU dependency
• Bluetooth 5.2 certified with extended range mode supporting 240-meter communication in open environments for wide-area IoT networks
• Ultra-low power architecture with 2 microamp standby current and integrated DC-DC converter for extended battery life in portable devices
• Pre-loaded Nordic SoftDevice stack eliminating development delays and ensuring regulatory compliance with FCC and CE certifications
• 1 MB flash and 256 KB RAM enabling complex application logic, data logging, and real-time processing directly on the module
• Integrated ceramic antenna with matching network providing consistent performance without RF tuning expertise required
• Over-the-air firmware update capability enabling remote device maintenance and feature upgrades without physical access
• Castellated mounting pads for reliable surface-mount assembly onto custom PCBs with minimal footprint impact

Applications and Use Cases

• Wearable Fitness Trackers: Integrate heart rate monitoring, step counting, and sleep tracking with continuous Bluetooth connectivity to smartphones while maintaining multi-day battery life through ultra-low power consumption
• Smart Home Automation: Deploy wireless light switches, door sensors, and thermostat controllers communicating over extended-range BLE mesh networks for whole-house coverage without WiFi infrastructure
• Industrial IoT Sensors: Monitor temperature, humidity, and vibration in manufacturing facilities with the extended temperature range supporting harsh environments and over-the-air firmware updates for predictive maintenance algorithms
• Healthcare Monitoring Devices: Develop portable ECG monitors, pulse oximeters, and glucose meters with real-time patient data transmission to medical applications and cloud backends through secure BLE connections
• Asset Tracking Systems: Create compact GPS-free location beacons for warehouse inventory management, personnel tracking, and vehicle fleet monitoring with months of battery life
• Smart Lighting Solutions: Build dimmable LED controllers and color-tunable light fixtures with centralized control via mobile apps and voice assistants through BLE gateway integration

How to Use

Begin by connecting the MDBT50Q-P1M module to your custom PCB using castellated pads with standard surface-mount soldering techniques. Provide stable 3.3V power supply with a 10 microfarad decoupling capacitor placed within 10mm of the VDD pin to ensure clean power delivery. The module requires a 32.768 kHz external crystal oscillator for accurate timekeeping and Bluetooth synchronization; connect this crystal directly to the LFXTAL pins with minimal PCB trace lengths to reduce frequency drift.

Download the Nordic nRF5 SDK from the official Nordic website and install the ARM GCC toolchain for your development environment. The module comes pre-loaded with the SoftDevice stack, so begin by flashing your custom application code using the nRF Command Line Tools via UART or SWD debug interface. Configure your BLE advertisement parameters, GATT services, and power management settings in the application code. Test connectivity using Nordic's nRF Connect mobile application to verify advertisement, connection establishment, and data transfer. For production deployment, utilize the over-the-air firmware update mechanism to push application updates remotely to deployed devices without requiring physical access.

Frequently Asked Questions

What is the maximum communication range of the MDBT50Q-P1M module?

The MDBT50Q-P1M achieves approximately 240 meters of communication range in open line-of-sight conditions using Bluetooth 5.2 extended range mode. In indoor environments with obstacles like walls and furniture, typical range reduces to 30-50 meters depending on wall materials and interference sources. The actual range depends on transmit power settings, antenna orientation, and environmental RF noise levels. For applications requiring extended range, consider implementing BLE mesh networking where multiple modules relay messages across larger distances.

Can I program custom firmware directly on the MDBT50Q-P1M module?

Yes, the MDBT50Q-P1M supports custom firmware development using the Nordic nRF5 SDK and ARM GCC toolchain. The module contains 1 MB of flash memory, with approximately 600-700 KB available for user application code after SoftDevice stack allocation. You can flash applications via UART bootloader or SWD debug interface using nRF Command Line Tools. The pre-loaded SoftDevice stack handles all Bluetooth protocol complexity, allowing you to focus on application-specific logic. Over-the-air updates are supported through DFU (Device Firmware Update) protocol, enabling remote firmware deployment to deployed devices.

What power supply requirements does the MDBT50Q-P1M have?

The MDBT50Q-P1M operates on a single 3.3V supply with a typical current consumption of 5-10 mA during active Bluetooth communication and 2 microamps in deep sleep mode. The module integrates a DC-DC converter that efficiently steps down higher supply voltages, allowing operation from 2.7V to 3.6V range. For battery-powered applications, use a 10 microfarad ceramic capacitor placed within 10mm of the VDD pin to provide stable power delivery during RF transmission bursts. The ultra-low standby current enables multi-month battery life in applications that spend 99% of time in sleep mode, such as beacon devices or periodic sensor nodes.

Is the MDBT50Q-P1M certified for regulatory compliance?

Yes, the MDBT50Q-P1M comes pre-certified with FCC, CE, and other major regulatory approvals for Bluetooth 5.2 operation. This pre-certification significantly reduces time-to-market for your products, as you avoid the lengthy and expensive RF certification process. However, your final product design must still comply with local regulations, particularly regarding antenna integration and RF shielding. Nordic provides detailed certification documentation and application notes to guide your product design for maintaining compliance. Consult with regulatory experts if your product design significantly modifies the antenna or RF layout from reference designs.

What development tools are required to program the MDBT50Q-P1M?

You need the Nordic nRF5 SDK (available free from Nordic's website), ARM GCC toolchain, and nRF Command Line Tools for firmware compilation and flashing. A UART-to-USB adapter or SWD debugger (J-Link recommended) enables code upload and debugging. The nRF Connect mobile application provides convenient testing of BLE advertisement and connectivity without writing code. For development, a breadboard or custom PCB with the module, 3.3V power supply, 32.768 kHz crystal, and reset circuit is sufficient. Many developers use Nordic's nRF52840 DK (development kit) as a reference platform before integrating the MDBT50Q-P1M into custom designs.

When will I receive my order?

Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

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