功能

• Description
• 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 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