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MDBT40-256RV3 nRF51822 based BLE module
The MDBT40-256RV3 is a compact Bluetooth Low Energy module built on the Nordic nRF51822 chipset, designed for developers and engineers building wireless IoT applications with minimal power consumption. This module is widely used by embedded systems engineers, IoT product developers, and hobbyists who need a reliable, production-ready BLE solution for remote monitoring, wearable devices, and smart home applications. It solves the critical challenge of integrating Bluetooth 4.0 connectivity into resource-constrained embedded systems while maintaining ultra-low power operation and reducing time-to-market for wireless projects.
Product Overview
The MDBT40-256RV3 module integrates the Nordic nRF51822 ARM Cortex-M0 processor with 256KB flash memory and 32KB RAM, providing a complete BLE system-on-module solution. The module operates on a single 1.8V to 3.3V power supply and features an integrated antenna with typical transmission range of 100 meters in open space. The nRF51822 chipset implements the full Bluetooth 4.0 Low Energy protocol stack, enabling energy-efficient wireless communication suitable for battery-powered applications. This module eliminates the need for external RF design expertise, as all antenna matching and RF filtering are pre-engineered and certified.
What distinguishes the MDBT40-256RV3 is its balance of processing power and energy efficiency. The ARM Cortex-M0 core runs at 16MHz and includes hardware-accelerated AES encryption for secure wireless communication. The 256KB flash memory provides ample space for custom firmware development using Nordic's SDK or open-source alternatives like Arduino and Mbed OS. The module supports multiple concurrent BLE connections, allowing it to function as a central device connecting to multiple peripherals or as a peripheral device connecting to multiple central devices. Built-in temperature compensation and crystal oscillator ensure reliable operation across industrial temperature ranges.
Key Specifications
| Specification | Details |
| Product Type | Bluetooth Low Energy Module with ARM Cortex-M0 Processor |
| Brand | Raytac Corporation |
| 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 |
| Processor | ARM Cortex-M0 running at 16MHz |
| Flash Memory | 256KB for firmware and application code |
| RAM Memory | 32KB SRAM for runtime operations |
| Bluetooth Version | Bluetooth 4.0 Low Energy (BLE) |
| Operating Voltage | 1.8V to 3.3V DC |
| Transmission Power | Adjustable from -20dBm to +4dBm |
| Communication Range | 100 meters typical in open space |
| Operating Temperature | -40°C to +85°C |
| Module Dimensions | 13mm x 13mm x 2.3mm |
| Antenna Type | Integrated PCB antenna |
| Encryption | Hardware-accelerated AES-128 |
| Power Consumption | Idle: 1.5µA, Transmit: 10-15mA at 0dBm |
Key Features
- Complete BLE System-on-Module with integrated ARM Cortex-M0 processor eliminating the need for external microcontroller in simple applications
- Ultra-low power consumption with sleep current of 1.5 microamps, enabling battery-powered devices to operate for months or years on a single charge
- 256KB flash memory providing sufficient space for complex BLE applications with custom firmware development
- Integrated PCB antenna with 100-meter range reducing design complexity and eliminating external RF component sourcing
- Hardware-accelerated AES-128 encryption ensuring secure wireless communication for IoT and healthcare applications
- Support for multiple simultaneous BLE connections allowing implementation of mesh networks and multi-device scenarios
- Temperature-compensated crystal oscillator maintaining frequency accuracy across industrial temperature ranges
- Pre-certified RF design meeting FCC, CE, and IC regulatory requirements for faster time-to-market
Applications and Use Cases
- Fitness Wearables and Health Monitoring: Heart rate monitors, activity trackers, and blood pressure monitors using the MDBT40-256RV3 as the primary wireless communication hub with extended battery life
- Industrial IoT Sensors: Temperature, humidity, and vibration sensors in manufacturing facilities transmitting data to central gateways with secure AES encryption
- Smart Home Devices: Wireless door locks, smart switches, and lighting control systems leveraging the module's low power consumption for battery-operated operation
- Asset Tracking and Location Services: Bluetooth beacons and asset tags for warehouse management and indoor positioning systems utilizing the module's 100-meter range
- Medical Devices: Patient monitoring equipment and diagnostic devices requiring encrypted wireless communication with regulatory compliance
- Environmental Monitoring: Weather stations and air quality sensors collecting and transmitting data via BLE to mobile applications or cloud platforms
How to Use
The MDBT40-256RV3 module is interfaced via UART, SPI, or I2C protocols depending on your application requirements. Begin by connecting the module's power pins to your 1.8V to 3.3V power supply with appropriate decoupling capacitors (100nF ceramic capacitor recommended). Connect the UART pins (RX and TX) to your host microcontroller or development board for firmware programming and serial communication. The module ships with a bootloader pre-installed, allowing you to program custom firmware using Nordic's nRF51 SDK or Arduino IDE with appropriate board support packages. Use the module's GPIO pins for sensor interfacing or control outputs, ensuring voltage levels remain within the 1.8V to 3.3V operating range.
For firmware development, download the Nordic nRF51 SDK from the official Nordic Semiconductor website and set up your development environment using Keil MDK or GCC toolchain. The module supports over-the-air firmware updates through BLE, enabling remote device maintenance in deployed applications. For rapid prototyping, consider using Arduino sketches with the nRF51822 board support package, which simplifies BLE programming through high-level libraries. Always include proper power supply filtering and keep antenna traces clear of ground planes to maintain the specified 100-meter communication range. Test your application thoroughly in the target operating environment, as obstacles and RF interference can reduce effective range.
Frequently Asked Questions
What is the difference between MDBT40-256RV3 and other nRF51822 modules?
The MDBT40-256RV3 is manufactured by Raytac Corporation and features a pre-certified integrated antenna design with optimized PCB layout for reliable performance. Compared to bare nRF51822 chips, this module eliminates the need for external RF component design and antenna matching. The 256KB flash variant provides more firmware storage than lower-memory versions, supporting complex applications. The module's compact 13x13mm form factor makes it ideal for space-constrained applications like wearables and IoT sensors.
Can I use this module with Arduino development boards?
Yes, the MDBT40-256RV3 is fully compatible with Arduino IDE when using the nRF51822 board support package. You can program it via UART using standard Arduino sketches with BLE libraries. However, for advanced applications requiring direct access to Nordic's proprietary features, using the Nordic nRF51 SDK with Keil MDK or GCC provides more control and optimization options. The UART interface supports standard baud rates up to 1Mbps for fast firmware uploads.
What is the actual battery life I can expect with this module?
Battery life depends on your application's duty cycle and transmission frequency. In idle mode with periodic BLE advertisements every 1 second, a 100mAh battery can last approximately 2-3 months. Continuous operation with data transmission consumes 10-15mA, reducing battery life proportionally. For optimal battery life, implement sleep modes between transmissions, use lower transmission power settings (-20dBm to 0dBm), and minimize firmware execution time. Real-world deployments of fitness trackers using this chipset typically achieve 7-14 days of battery life with daily usage patterns.
Does the module support mesh networking?
The MDBT40-256RV3 supports multiple simultaneous BLE connections, enabling implementation of mesh topologies. However, standard Bluetooth Low Energy does not natively support mesh; you must implement mesh networking logic in firmware using libraries like Nordic's Mesh SDK or open-source alternatives. The module's 256KB flash and 32KB RAM provide sufficient resources for mesh node implementation with typical network sizes of 10-50 devices. For larger deployments, consider using Thread or Zigbee protocols instead.
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.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
Buy MDBT40-256RV3 nRF51822 based BLE module Online in India
Purchase the MDBT40-256RV3 nRF51
MDBT40-256RV3 nRF51822 based BLE module
The MDBT40-256RV3 is a compact Bluetooth Low Energy module built on the Nordic nRF51822 chipset, designed for developers and engineers building wireless IoT applications with minimal power consumption. This module is widely used by embedded systems engineers, IoT product developers, and hobbyists who need a reliable, production-ready BLE solution for remote monitoring, wearable devices, and smart home applications. It solves the critical challenge of integrating Bluetooth 4.0 connectivity into resource-constrained embedded systems while maintaining ultra-low power operation and reducing time-to-market for wireless projects.
Product Overview
The MDBT40-256RV3 module integrates the Nordic nRF51822 ARM Cortex-M0 processor with 256KB flash memory and 32KB RAM, providing a complete BLE system-on-module solution. The module operates on a single 1.8V to 3.3V power supply and features an integrated antenna with typical transmission range of 100 meters in open space. The nRF51822 chipset implements the full Bluetooth 4.0 Low Energy protocol stack, enabling energy-efficient wireless communication suitable for battery-powered applications. This module eliminates the need for external RF design expertise, as all antenna matching and RF filtering are pre-engineered and certified.
What distinguishes the MDBT40-256RV3 is its balance of processing power and energy efficiency. The ARM Cortex-M0 core runs at 16MHz and includes hardware-accelerated AES encryption for secure wireless communication. The 256KB flash memory provides ample space for custom firmware development using Nordic's SDK or open-source alternatives like Arduino and Mbed OS. The module supports multiple concurrent BLE connections, allowing it to function as a central device connecting to multiple peripherals or as a peripheral device connecting to multiple central devices. Built-in temperature compensation and crystal oscillator ensure reliable operation across industrial temperature ranges.
Key Specifications
| Specification | Details |
| Product Type | Bluetooth Low Energy Module with ARM Cortex-M0 Processor |
| Brand | Raytac Corporation |
| 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 |
| Processor | ARM Cortex-M0 running at 16MHz |
| Flash Memory | 256KB for firmware and application code |
| RAM Memory | 32KB SRAM for runtime operations |
| Bluetooth Version | Bluetooth 4.0 Low Energy (BLE) |
| Operating Voltage | 1.8V to 3.3V DC |
| Transmission Power | Adjustable from -20dBm to +4dBm |
| Communication Range | 100 meters typical in open space |
| Operating Temperature | -40°C to +85°C |
| Module Dimensions | 13mm x 13mm x 2.3mm |
| Antenna Type | Integrated PCB antenna |
| Encryption | Hardware-accelerated AES-128 |
| Power Consumption | Idle: 1.5µA, Transmit: 10-15mA at 0dBm |
Key Features
- Complete BLE System-on-Module with integrated ARM Cortex-M0 processor eliminating the need for external microcontroller in simple applications
- Ultra-low power consumption with sleep current of 1.5 microamps, enabling battery-powered devices to operate for months or years on a single charge
- 256KB flash memory providing sufficient space for complex BLE applications with custom firmware development
- Integrated PCB antenna with 100-meter range reducing design complexity and eliminating external RF component sourcing
- Hardware-accelerated AES-128 encryption ensuring secure wireless communication for IoT and healthcare applications
- Support for multiple simultaneous BLE connections allowing implementation of mesh networks and multi-device scenarios
- Temperature-compensated crystal oscillator maintaining frequency accuracy across industrial temperature ranges
- Pre-certified RF design meeting FCC, CE, and IC regulatory requirements for faster time-to-market
Applications and Use Cases
- Fitness Wearables and Health Monitoring: Heart rate monitors, activity trackers, and blood pressure monitors using the MDBT40-256RV3 as the primary wireless communication hub with extended battery life
- Industrial IoT Sensors: Temperature, humidity, and vibration sensors in manufacturing facilities transmitting data to central gateways with secure AES encryption
- Smart Home Devices: Wireless door locks, smart switches, and lighting control systems leveraging the module's low power consumption for battery-operated operation
- Asset Tracking and Location Services: Bluetooth beacons and asset tags for warehouse management and indoor positioning systems utilizing the module's 100-meter range
- Medical Devices: Patient monitoring equipment and diagnostic devices requiring encrypted wireless communication with regulatory compliance
- Environmental Monitoring: Weather stations and air quality sensors collecting and transmitting data via BLE to mobile applications or cloud platforms
How to Use
The MDBT40-256RV3 module is interfaced via UART, SPI, or I2C protocols depending on your application requirements. Begin by connecting the module's power pins to your 1.8V to 3.3V power supply with appropriate decoupling capacitors (100nF ceramic capacitor recommended). Connect the UART pins (RX and TX) to your host microcontroller or development board for firmware programming and serial communication. The module ships with a bootloader pre-installed, allowing you to program custom firmware using Nordic's nRF51 SDK or Arduino IDE with appropriate board support packages. Use the module's GPIO pins for sensor interfacing or control outputs, ensuring voltage levels remain within the 1.8V to 3.3V operating range.
For firmware development, download the Nordic nRF51 SDK from the official Nordic Semiconductor website and set up your development environment using Keil MDK or GCC toolchain. The module supports over-the-air firmware updates through BLE, enabling remote device maintenance in deployed applications. For rapid prototyping, consider using Arduino sketches with the nRF51822 board support package, which simplifies BLE programming through high-level libraries. Always include proper power supply filtering and keep antenna traces clear of ground planes to maintain the specified 100-meter communication range. Test your application thoroughly in the target operating environment, as obstacles and RF interference can reduce effective range.
Frequently Asked Questions
What is the difference between MDBT40-256RV3 and other nRF51822 modules?
The MDBT40-256RV3 is manufactured by Raytac Corporation and features a pre-certified integrated antenna design with optimized PCB layout for reliable performance. Compared to bare nRF51822 chips, this module eliminates the need for external RF component design and antenna matching. The 256KB flash variant provides more firmware storage than lower-memory versions, supporting complex applications. The module's compact 13x13mm form factor makes it ideal for space-constrained applications like wearables and IoT sensors.
Can I use this module with Arduino development boards?
Yes, the MDBT40-256RV3 is fully compatible with Arduino IDE when using the nRF51822 board support package. You can program it via UART using standard Arduino sketches with BLE libraries. However, for advanced applications requiring direct access to Nordic's proprietary features, using the Nordic nRF51 SDK with Keil MDK or GCC provides more control and optimization options. The UART interface supports standard baud rates up to 1Mbps for fast firmware uploads.
What is the actual battery life I can expect with this module?
Battery life depends on your application's duty cycle and transmission frequency. In idle mode with periodic BLE advertisements every 1 second, a 100mAh battery can last approximately 2-3 months. Continuous operation with data transmission consumes 10-15mA, reducing battery life proportionally. For optimal battery life, implement sleep modes between transmissions, use lower transmission power settings (-20dBm to 0dBm), and minimize firmware execution time. Real-world deployments of fitness trackers using this chipset typically achieve 7-14 days of battery life with daily usage patterns.
Does the module support mesh networking?
The MDBT40-256RV3 supports multiple simultaneous BLE connections, enabling implementation of mesh topologies. However, standard Bluetooth Low Energy does not natively support mesh; you must implement mesh networking logic in firmware using libraries like Nordic's Mesh SDK or open-source alternatives. The module's 256KB flash and 32KB RAM provide sufficient resources for mesh node implementation with typical network sizes of 10-50 devices. For larger deployments, consider using Thread or Zigbee protocols instead.
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.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication
- Expert Team: Our technical team validates every product before listing
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
- Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
- Technical Support: 24/7 expert guidance via email and WhatsApp
- Returns: 7-day return policy on manufacturing defects only
Buy MDBT40-256RV3 nRF51822 based BLE module Online in India
Purchase the MDBT40-256RV3 nRF51