SparkFun Pro nRF52840 Mini – Bluetooth Development Board


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SKU: 1073083
  1. Processor: ARM Cortex-M4 CPU 5.0 Stack
  2. Input Voltage:3.3V@500mA
  3. Connector Type:2 pole JST-Ph
  4. Interface: I2C
  5. Weight:3 gm


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Brand: SparkFun
Category: Bluetooth and NRF Modules
Tags: NRF

The Nordic Semiconductor nRF52840 Mini is a breakout and development board for the nRF52840, a powerful combination of ARM Cortex-M4 CPU and 2.4GHz Bluetooth radio from SparkFun. With the nRF52840 at the heart of your project, you’ll have access to an almost limitless number of project possibilities in a surprisingly small package.

Most of the critical I/O pins, including GPIO and those required for power, are separated on our mini development board for the nRF52840, which has a footprint that is nearly identical to the Arduino Pro Mini (except those covered by the Qwiic Connector). It has a USB interface (which takes advantage of the nRF52840’s native USB support) that can be used to program, power, and communicate with the chip, allowing it to be used for any purpose (UART, I2C, SPI) that the Arduino Pro Mini can. A Raytac MDBT50Q-P1M module is included in the Pro nRF52840 Mini. This module connects the nRF52840 to a trace antenna, fits the IC into an FCC-approved footprint, and includes many of the decoupling and timing mechanisms that a bare nRF52840 design would require. A LiPo battery charger, a Qwiic connector, an on/off switch, a reset switch, and a user LED/button are also included onboard.

  1. Smart home (such as door locks, lighting) sensors and controllers
  2. Industrial IoT sensors and controllers
  3. Health/fitness sensor and monitor device
  4. Wearables with wireless secure payment


  1. Low power requirements, ultra-low peak, average and idle mode power consumption.
  2. Be compatible with a large installed base of mobile phones, tablets, and computers.
  3. Fully coverage of BLE software stack.
  4. BLE & RF transmission switching helps products fit all operation systems and most hardware.

Package Includes:

1 x SparkFun Pro nRF52840 Mini – Bluetooth Development Board

SKU: 1073083 Category: Tag:
Input Voltage (V)



ARM Cortex-M4 CPU BT 5.0 STACK

Connector Type

2 pole JST PH

Flash Memory



256 kB



Length (mm):


Width (mm):


Height (mm):


Weight (g):


Shipping Weight 0.006 kg
Shipping Dimensions 7 × 4 × 1 cm
1 Month Warranty

This item is covered with a standard warranty of 1 month from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: USA