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.MicroMod is a modular interface ecosystem that connects a microcontroller “processor board” to various “carrier board” peripherals. Utilizing the M.2 standard, the MicroMod standard is designed to easily swap out processors on the fly. Pair a specialized carrier board for the project you need with your choice of compatible processor!Get Started with the MicroMod nRF52840 Processor GuideFeatures: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 Documents:MicroMod nRF52840 Processor Documentation:

* Schematic * Eagle Files * Board Dimensions * Graphical Datasheet * Hookup Guide * Datasheet - MDBT50Q Module * Datasheet - nRF52840 IC * GitHub Hardware Repo MicroMod Documentation:

* 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 Videos