SparkFun MicroMod nRF52840 Processor

Featuring the nRF52840 SoC from Nordic Semiconductor, the SparkFun MicroMod nRF52840 Processor offers a powerful combination of ARM Cortex-M4 CPU and 2.4 GHz Bluetooth transceiver in the MicroMod form-factor with the M.2 MicroMod connector to allow you to plug in a compatible MicroMod Carrier Board with any number of peripherals. The MicroMod nRF52840 Processor features the same Raytac MDBT50Q-P1M found on our Pro nRF52840 Mini. This module includes an integrated trace antenna, fits the IC to an FCC-approved footprint along with including decoupling and timing mechanisms that would need to be designed into a circuit using the bare nRF52840 IC. The Bluetooth transceiver included on the nRF52840 boasts a BT 5.1 stack and supports Bluetooth 5, Bluetooth mesh, IEEE 802.15.4 (Zigbee & Thread) and 2.4Ghz RF wireless protocols (including Nordic's proprietary RF protocol) allowing you to pick which option works best for your application. We've also routed two I2C buses, 2 SPI buses, eleven GPIO, dedicated digital, analog, PWM & PDM pins along with multiple serial UARTS to cover nearly all of your peripheral needs. Get Started with the Micromod NRF52840 Processor Guide

Features nRF52840 General Features:

* ARM Cortex-M4 CPU with floating point unit (FPU)

* 1MB internal Flash -- For all of your program, SoftDevice, and file-storage needs!

* 256kB internal RAM -- For your stack and heap storage.

* Integrated 2.4GHz radio with support for:

* Bluetooth Low Energy (BLE) -- With peripheral and/or central BLE device support

* Bluetooth 5 -- Mesh Bluetooth!

* ANT -- If you want to turn the device into a heart-rate or exercise monitor.

* Nordic's proprietary RF protocol -- If you want to communicate, securely, with other Nordic devices.

* Every I/O peripheral you could need

* USB -- Turn your nRF52840 into a USB mass-storage device, use a CDC (USB serial) interface, and more. This is a big add compared to the nRF52832!

* UART -- Serial interfaces with support for hardware flow-control if desired.

* I2C -- Everyone's favorite 2-wire bi-directional 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 means PWM support for driving LEDs or servo motors.

* Real-time clock (RTC) -- Keep close track of seconds and milliseconds, also supports timed deep-sleep features.

Specific Peripherals available on MicroMod nRF52840:

* Three UARTs

* Primary tied to USB interface. Two hardware UARTs.

* Two I2C Buses

* Two SPI Buses

* Secondary SPI Bus primarily used for Flash IC

* PDM Audio Processing

* Two Analog Inputs

* Two Dedicated Digital I/O Pins

* Two Dedicated PWM Pins

* Eleven General Purpose I/O Pins

Resources MicroMod nRF52840 Processor Documentation:

* Schematic

* Eagle Files

* Board Dimensions

* Graphical Datasheet

* Hookup Guide

* Datasheet - MDBT50Q Module

* Datasheet - nRF52840 IC

* GitHub Hardware Repo

MicroMod Documentation:

* Full MicroMod Range

* SparkFun MicroMod Interface v1.0 - Pinout

* SparkFun MicroMod Interface v1.0 - Pin Descriptions

* Getting Started with MicroMod

* Designing with MicroMod

* MicroMod Info Page

* MicroMod Forums

* SparkFun Eagle Libraries (contains example footprints for the M.2 connector and SMD standoff)

* M.2 MicroMod Connector Datasheet

* MicroMod Reflowable Standoff Datasheet