The Adafruit Feather Bluefruit Sense takes the popular Feather nRF52840 Express and adds an array of sensors to make an excellent wireless sensor platform.
This Feather microcontroller comes with Bluetooth Low Energy and native USB support featuring the nRF52840! This Feather is an ‘all-in-one’ Arduino-compatible + Bluetooth Low Energy with built-in USB plus battery charging. With native USB, it works great with CircuitPython, too.
Like the Feather nRF52840, this chip comes with Arduino IDE support – you can program the nRF52840 chip directly to take full advantage of the Cortex-M4 processor and then call into the Nordic SoftDevice radio stack when you need to communicate over BLE. Since the underlying API and peripherals are the same for the ‘832 and ‘840, you can supercharge your older nRF52832 projects with the same code with a single recompile!
The Adafruit Feather nRF52840 Sense is also a BLE-friendly CircuitPython board! CircuitPython works best with disk drive access, and this is the only BLE-plus-USB-native chip with the memory to run a little Python interpreter. The massive RAM and speedy Cortex M4F chip make this a good match. Make centrals or peripherals with the ease of CircuitPython.
- ARM Cortex M4F (with HW floating point acceleration) running at 64MHz
- 1MB flash and 256KB SRAM
- Native Open Source USB stack – pre-programmed with UF2 bootloader
- Bluetooth Low Energy compatible 2.4GHz radio (Details available in the nRF52840 product specification)
- FCC / IC / TELEC certified module
- Up to +8dBm output power
- 21 GPIO, 6 x 12-bit ADC pins, up to 12 PWM outputs (3 PWM modules with four outputs each)
- Hardware SPI, UART, I2C and I2S on any pins
- Pin #13 red LED for general purpose blinking, Blue LED for general purpose connection status, NeoPixel for colourful feedback
- Power/enable pin
- Four mounting holes
- Reset button
- SWD debug pads on the bottom of the PCB
- Works out of the box with all of Adafruit FeatherWings!
- Dimensions: 51mm x 23mm x 7.2mm (without header pins)
- Weight: 5.5g
- 1 x Adafruit Feather nRF52840 Sense