SparkFun Pro nRF52840 Mini Bluetooth Development Board

Name: SparkFun Pro nRF52840 Mini Bluetooth Development Board
Brand: SparkFun
SKU: IOWC-0158
Price: 5089.00 INR
Availability: OutOfStock

₹5,089.00 (Inclusive of all taxes)

Out of Stock

The SparkFun Pro nRF52840 Mini is a compact development board built around the Nordic Semiconductor nRF52840 SoC, featuring an ARM Cortex-M4 CPU and Bluetooth 5.0/2.4GHz radio for low-power IoT applications, Arduino Pro Mini compatible pinout, and native USB support.

Features

Powered by Nordic Semiconductor nRF52840 SoC with ARM Cortex-M4 CPU and integrated Bluetooth 5.0/2.4GHz radio for robust wireless connectivity.
Ultra-compact form factor (25mm x 50mm) with pinout compatible with Arduino Pro Mini, enabling easy integration into existing projects.
Includes Raytac MDBT50Q-P1M certified module with integrated trace antenna for FCC-approved RF performance and simplified design.
Onboard features: native USB for programming/power/communication, Qwiic connector for I2C expansion, LiPo battery charger, user LED/button, and reset switch.
Low-power architecture ideal for battery-operated IoT devices, wearables, and portable sensor nodes with extensive GPIO and memory (1MB Flash, 256kB RAM).

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Description

The SparkFun Pro nRF52840 Mini development board provides a streamlined platform for prototyping Bluetooth Low Energy (BLE) and 2.4GHz wireless applications. At its core is the Nordic Semiconductor Semiconductor nRF52840 System-on-Chip, which combines a 64MHz ARM Cortex-M4 processor with a fully integrated Bluetooth 5.0 radio stack. This integration delivers high processing capability alongside ultra-low power consumption, supporting advanced sleep modes critical for battery-powered IoT deployments.

The board’s design incorporates the Raytac MDBT50Q-P1M module, which packages the nRF52840 with necessary RF matching networks, decoupling, and a PCB trace antenna. This module ensures reliable wireless performance and simplifies FCC regulatory compliance. The compact footprint mirrors the Arduino Pro Mini, offering direct compatibility with a vast ecosystem of shields and peripherals while adding modern interfaces like native USB for direct programming, debugging, and serial communication without external converters.

Key Features

Nordic Semiconductor nRF52840 SoC with ARM Cortex-M4 CPU @ 64MHz and integrated Bluetooth 5.0/2.4GHz transceiver.
FCC-certified Raytac MDBT50Q-P1M module with onboard trace antenna for simplified RF design and compliance.
Native USB port for direct programming, power delivery (3.3V@500mA), and virtual COM port (UART) communication.
Arduino Pro Mini compatible pinout with extensive GPIO, SPI, I2C, and UART interfaces for easy peripheral expansion.
Onboard LiPo battery charger with JST-PH connector, enabling seamless integration with rechargeable battery packs.
Qwiic connector for plug-and-play I2C sensor and display module connectivity without soldering.
Dedicated user button and LED for interactive debugging and low-power state control.
Ultra-low power operation supported by multiple power domains and deep sleep modes for extended battery life.

Applications

Smart home automation nodes (door locks, lighting controllers, environmental sensors).
Industrial IoT (IIoT) wireless sensor nodes for telemetry and control.
Health and fitness monitoring devices (wearable heart rate, activity trackers).
Secure wearable devices with wireless payment (BLE) capabilities.
Prototyping and educational platforms for Bluetooth and embedded systems development.

Technical Specifications

Microcontroller/SoC	Nordic Semiconductor nRF52840 (ARM Cortex-M4 @ 64MHz)
Wireless Protocols	Bluetooth 5.0, Bluetooth Low Energy (BLE), 2.4GHz proprietary RF
Module	Raytac MDBT50Q-P1M (FCC certified)
Antenna	Integrated PCB trace antenna
Supply Voltage	3.3V (via USB or external pin)
Input Current	500mA (typical via USB)
Flash Memory	1 MB
RAM	256 kB
Interfaces	USB 2.0 (native), GPIO, I2C (Qwiic), SPI, UART, Analog Inputs
Battery Charger	Integrated LiPo charger with JST-PH connector
Dimensions	25 mm (Width) x 50 mm (Length)
Weight	3 g

Frequently Asked Questions

How do I program the SparkFun Pro nRF52840 Mini board?

You can program the board using the Arduino IDE with the SparkFun nRF52 Boards package installed, or via Nordic Semiconductor's Segger Embedded Studio and nRF Connect SDK. Connect the board via its native USB port, which appears as a COM port for serial communication and allows direct firmware uploads without an external programmer. The board is also compatible with PlatformIO for a more advanced embedded workflow.

What is the power supply requirement and how do I use the battery charger?

The board operates at 3.3V and can be powered via the USB port (providing up to 500mA) or through the VCC and GND pins. The onboard LiPo battery charger connects to a single-cell LiPo via the 2-pole JST-PH connector; charging is managed automatically when USB power is present. For lowest power consumption, utilize the nRF52840's deep sleep modes, which draw microamps, significantly extending battery life in field deployments.

Can I use external antennas with this board, and what is the wireless range?

The board uses the integrated PCB trace antenna within the Raytac module, which is optimized for FCC certification and typical BLE ranges up to 100 meters line-of-sight. The module does not have an external antenna connector. For extended range, consider the module's output power and receiver sensitivity specifications, and ensure proper PCB layout if designing a custom carrier board to avoid detuning the integrated antenna.