SparkFun Pro nRF52840 Mini - Bluetooth Development Board [DEV-15025] - (AD42428)

Description:

The SparkFun Pro nRF52840 Mini is a development board for Nordic Semiconductor's nRF52840, a powerful combination of ARM Cortex-M4 CPU and 2.4 GHz Bluetooth radio. With the nRF52840 at the heart of your project, you'll be presented with a seemingly endless list of project possibilities in an incredibly small package.

Our mini development board for the nRF52840 breaks out most of the critical I/O pins, including GPIO and those required for power, while maintaining a small footprint that almost matches that of the Arduino Pro Mini (except for the Qwiic connector). It features a USB interface (with the nRF52840's native USB support), which can be used to program, power, and communicate with the chip, allowing its use for any purpose (UART, I2C, SPI) that those on the Arduino Pro Mini could. The Pro nRF52840 Mini features a Raytac MDBT50Q-P1M module. This module connects the nRF52840 to a trace antenna, encapsulates the IC in an FCC-approved footprint, and also includes a host of decoupling and timing mechanisms that would otherwise be required for an nRF52840 design. Also included on the board is a LiPo battery charger, a Qwiic connector, an on/off switch, a reset switch, and a user LED/button.

The board comes pre-programmed with a USB bootloader. You can develop programs for the nRF52840's Cortex-M4 using Arduino, Circuit Python, or C (using Nordic's nRF5 SDR) and upload that compiled code using a mass storage or serial USB interface.

Features:

• ARM Cortex-M4 CPU with Floating Point Unit (FPU)
  • 1MB internal Flash memory: For all your program, software device, and file storage needs!
  • 256KB internal RAM: For your stack and heap storage.
• Integrated 2.4 GHz radio supporting:
  • Bluetooth Low Energy (BLE): Supports peripheral and/or central BLE devices
  • Bluetooth 5: Mesh Bluetooth!
  • ANT: If you want to turn the device into a heart rate monitor or exercise tracker.
  • Nordic's proprietary RF protocol: If you want to securely communicate with other Nordic devices.
• All the I/O peripherals you could need
  • USB: Turn your nRF52840 into a USB mass storage device, use a CDC (USB serial) interface, and much more. A huge advantage compared to the nRF52832!
  • UART: Serial interfaces supporting hardware flow control if you want it.
  • I2C: Everyone's favorite 2-wire bidirectional bus interface
  • SPI: If you prefer the 3+ wire serial interface
  • Analog-to-Digital Converters (ADC): Eight pins on the nRF52840 Mini Breakout support analog inputs
  • PWM: Timer support on any pin allows controlling LEDs or servos.
  • Real-Time Clock (RTC): Accurately monitors seconds and milliseconds, and also supports timed deep sleep functions.
• Peripheral Multiplexing: Almost any pin supports any of the mentioned functions.

Documents:

• Schematic
• Eagle Files
• Hookup Guide
• Datasheet (MDBT50Q)
• Bootloader Source Code
• Nordic nRF5 SDK
• Arduino Core for nRF Boards
• CircuitPython nRF Port
• GitHub

Reference Link