{"product_id":"sparkfun-pro-nrf52840-mini-bluetooth-development-board","title":"SparkFun Pro nRF52840 Mini – Bluetooth Development Board","description":"\u003cmeta name=\"description\" content=\"Buy SparkFun Pro nRF52840 Mini – Bluetooth Development Board online in India at best price from The Tech Depot, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\n\u003ch1\u003eSparkFun Pro nRF52840 Mini – Bluetooth Development Board\u003c\/h1\u003e\n\n\u003cp\u003eThe SparkFun Pro nRF52840 Mini is a compact yet powerful Bluetooth 5.0 development board featuring the Nordic Semiconductor nRF52840 SoC, delivering dual-core ARM Cortex-M4 processing at 64 MHz with 1 MB flash and 256 KB RAM. Professional IoT developers, embedded systems engineers, and wireless protocol specialists use this board to prototype BLE mesh networks, connected wearables, and low-power IoT applications requiring advanced wireless capabilities. This board solves the critical challenge of developing production-grade Bluetooth applications with minimal footprint while maintaining full debugging and development flexibility through integrated SEGGER J-Link OB debugger.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\n\u003cp\u003eThe SparkFun Pro nRF52840 Mini integrates the Nordic nRF52840 multiprotocol SoC, which combines a 64 MHz ARM Cortex-M4 processor with a dedicated 2.4 GHz radio supporting Bluetooth 5.0, Bluetooth Low Energy, Thread, Zigbee, and proprietary 2.4 GHz protocols. The board operates on a single 3.3V supply with integrated USB power delivery and features an onboard SEGGER J-Link OB debugger for seamless firmware development and real-time debugging. The nRF52840's advanced power management architecture enables ultra-low standby currents below 2 µA, making it ideal for battery-powered applications requiring extended operational life.\u003c\/p\u003e\n\n\u003cp\u003eWhat distinguishes this Mini variant is its compact form factor without compromising on I\/O accessibility. The board exposes 21 GPIO pins through dual 0.1-inch headers, supporting SPI, I2C, UART, and PDM interfaces for sensor integration and peripheral communication. The integrated 2.4 GHz antenna provides reliable wireless range up to 240 meters in open space, while the board supports external antenna connectivity via u.FL connector for extended range deployments. Built-in USB bootloader enables drag-and-drop firmware programming, eliminating the need for external programmers and accelerating development cycles.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eBluetooth 5.0 Development Board with Integrated Debugger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSparkFun Electronics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7 days on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping\u003c\/td\u003e\n\u003ctd\u003e1-5 days from Bengaluru\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003e7-8 days across India\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003e24\/7 via Email and WhatsApp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor\u003c\/td\u003e\n\u003ctd\u003eNordic nRF52840 ARM Cortex-M4 at 64 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory\u003c\/td\u003e\n\u003ctd\u003e1 MB Flash, 256 KB RAM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWireless Protocol\u003c\/td\u003e\n\u003ctd\u003eBluetooth 5.0, BLE, Thread, Zigbee, 2.4 GHz proprietary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPIO Pins\u003c\/td\u003e\n\u003ctd\u003e21 exposed GPIO with SPI, I2C, UART, PDM support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e3.3V via USB-C or external supply, 2-3.6V battery compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandby Current\u003c\/td\u003e\n\u003ctd\u003eBelow 2 µA in deep sleep mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna\u003c\/td\u003e\n\u003ctd\u003eIntegrated 2.4 GHz antenna with u.FL connector for external antenna\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDebugger\u003c\/td\u003e\n\u003ctd\u003eSEGGER J-Link OB integrated on-board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e45.7 mm x 20.3 mm compact form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgramming Interface\u003c\/td\u003e\n\u003ctd\u003eUSB bootloader with drag-and-drop firmware loading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eNordic nRF52840 SoC with ARM Cortex-M4 processor running at 64 MHz, delivering 100 DMIPS performance for complex wireless applications and real-time signal processing\u003c\/li\u003e\n\u003cli\u003eIntegrated SEGGER J-Link OB debugger enabling real-time code debugging, breakpoints, and memory inspection without external debugging hardware\u003c\/li\u003e\n\u003cli\u003eBluetooth 5.0 with extended range up to 240 meters and support for simultaneous multi-protocol operation including Thread and Zigbee\u003c\/li\u003e\n\u003cli\u003eUltra-low power architecture with standby current below 2 µA, enabling months of battery life in IoT applications\u003c\/li\u003e\n\u003cli\u003eUSB-C connectivity with bootloader support for immediate firmware programming without external programmers or tools\u003c\/li\u003e\n\u003cli\u003e21 GPIO pins with flexible peripheral support including dual SPI, dual I2C, dual UART, and PDM digital microphone interface\u003c\/li\u003e\n\u003cli\u003eDual antenna options with integrated PCB antenna and u.FL connector for external antenna deployment in range-critical applications\u003c\/li\u003e\n\u003cli\u003eArduino-compatible pinout with SparkFun Qwiic ecosystem support for rapid sensor and module integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eWearable Health Monitoring Devices: Develop smartwatches, fitness trackers, and medical-grade biosensors using BLE for smartphone connectivity with sub-2µA standby current enabling week-long battery life\u003c\/li\u003e\n\u003cli\u003eIndustrial IoT Sensor Networks: Build Thread-based mesh networks for factory automation, environmental monitoring, and predictive maintenance with reliable multi-hop communication across large facilities\u003c\/li\u003e\n\u003cli\u003eSmart Home Automation Hubs: Create Zigbee and BLE gateway devices for home automation systems requiring simultaneous protocol support and low-power operation\u003c\/li\u003e\n\u003cli\u003eBluetooth Audio Streaming Devices: Prototype wireless earbuds, speakers, and audio peripherals leveraging the nRF52840's advanced audio codec support and low-latency wireless transmission\u003c\/li\u003e\n\u003cli\u003eAsset Tracking and Location Services: Develop beacon-based tracking systems for inventory management and indoor positioning using Bluetooth 5.0's improved range and direction finding capabilities\u003c\/li\u003e\n\u003cli\u003eRemote Control and Robotics: Build wireless control systems for drones, robots, and autonomous vehicles with real-time responsiveness and reliable BLE command transmission\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\n\u003cp\u003eBegin by connecting the SparkFun Pro nRF52840 Mini to your development computer via USB-C cable. The board automatically appears as a USB mass storage device with the bootloader active. Download the Arduino IDE and install the SparkFun nRF52 board package through the Boards Manager, which provides pre-configured libraries and examples for immediate development. Select the SparkFun Pro nRF52840 Mini from the board selection menu, configure your COM port, and compile your first sketch using the integrated ARM GCC toolchain.\u003c\/p\u003e\n\n\u003cp\u003eFor advanced development, install SEGGER Embedded Studio or use the open-source nRF5 SDK directly. The integrated J-Link debugger enables real-time debugging with breakpoints and variable inspection. Connect external sensors via the Qwiic connector or traditional GPIO headers using the exposed SPI, I2C, and UART interfaces. Configure the wireless protocol stack through the nRF5 SDK's radio abstraction layer, supporting Bluetooth 5.0, Thread mesh networking, or Zigbee depending on your application requirements. Monitor power consumption using the onboard current measurement capabilities and optimize firmware using the integrated profiling tools in SEGGER Embedded Studio.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the nRF52840 Mini and other SparkFun nRF52 boards?\u003c\/summary\u003e\n\u003cp\u003eThe nRF52840 Mini offers the smallest form factor while maintaining full nRF52840 capabilities including integrated J-Link debugger. Unlike the larger nRF52840 DK, the Mini prioritizes compact size for embedded applications while the DK provides additional development features and expansion options. The nRF52832 boards offer lower cost but lack Thread and Zigbee support plus have reduced RAM and flash memory.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this board for production deployment or only development?\u003c\/summary\u003e\n\u003cp\u003eWhile designed as a development board, the nRF52840 Mini can transition to production with proper certification. The module can be integrated into custom PCBs, though production designs typically use the bare nRF52840 module or reference designs. Ensure compliance with FCC, CE, and local regulatory requirements for wireless devices before commercial deployment.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat programming languages and frameworks are supported?\u003c\/summary\u003e\n\u003cp\u003eThe board supports Arduino IDE with SparkFun's nRF52 board package for C\/C++ development, the official nRF5 SDK for advanced Nordic-specific features, SEGGER Embedded Studio for professional development, and MicroPython for rapid prototyping. The integrated J-Link debugger works seamlessly with all these platforms.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow do I achieve the advertised 2 µA standby current?\u003c\/summary\u003e\n\u003cp\u003eStandby current of below 2 µA requires proper firmware configuration including disabling unused peripherals, configuring GPIO pins as inputs to prevent floating states, and enabling the nRF52840's System-on-Chip sleep modes. Disable the USB interface when running on battery power and ensure external components like pull-up resistors do not leak current. The nRF5 SDK provides power optimization examples demonstrating these techniques.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the wireless range with the integrated antenna?\u003c\/summary\u003e\n\u003cp\u003eThe integrated PCB antenna provides approximately 240 meters line-of-sight range in open space with standard Bluetooth 5.0 transmission power. Indoor range typically reduces to 30-50 meters depending on wall materials and interference. For extended range applications, connect an external antenna via the u.FL connector, which can extend range to 300+ meters in optimal conditions.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eOrders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return and warranty policy?\u003c\/summary\u003e\n\u003cp\u003eWe 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.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eWhy Buy from The Tech Depot\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eGenuine Products: Sourced directly from authorized distributors with authentication\u003c\/li\u003e\n\u003cli\u003eExpert Team: Our technical team validates every product before listing\u003c\/li\u003e\n\u003cli\u003eFast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse\u003c\/li\u003e\n\u003cli\u003ePan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata\u003c\/li\u003e\n\u003cli\u003ePayment Options: COD, UPI, credit\/debit cards, net banking, EMI available\u003c\/li\u003e\n\u003cli\u003eTechnical Support: 24\/7 expert guidance via email and WhatsApp\u003c\/li\u003e\n\u003cli\u003eReturns: 7-day return policy on manufacturing defects only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuy Sp\n\u003ch2\u003eBuy SparkFun Pro nRF52840 Mini – Bluetooth Development Board Online in India\u003c\/h2\u003e\n\u003c\/h2\u003e\u003cp\u003ePurchase the \u003cstrong\u003eSparkFun Pro nRF52840 Mini – Bluetooth Development Board\u003c\/strong\u003e online at \u003ca href=\"https:\/\/thetechdepot.in\"\u003eThe Tech Depot\u003c\/a\u003e, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat.\u003c\/p\u003e\n\u003cp\u003eOur team in Bengaluru is available 24\/7 to support your journey from product selection to project completion.\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48744394653953,"sku":"TTD-11125","price":3707.88,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/a64054e51679b648b81b62a5bbb9767f.jpg?v=1778073279","url":"https:\/\/techdepot.in\/products\/sparkfun-pro-nrf52840-mini-bluetooth-development-board","provider":"Tech Depot India","version":"1.0","type":"link"}