Size Guide
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Description
xThe Adafruit Feather Bluefruit Sense is a versatile wireless sensor platform based on the popular Feather nRF52840 Express board. It features Bluetooth® Low Energy (BLE) with native USB support, powered by the nRF52840 chip. This board is Arduino IDE compatible and supports CircuitPython, making it easy to program and ideal for IoT and environmental sensing projects.
Built-in sensors include:
- ST Micro 9-DoF motion sensors: LSM6DS3TR-C Accel/Gyro and LIS3MDL magnetometer
- APDS9960 Proximity, Light, Color, and Gesture Sensor
- PDM Microphone sound sensor
- SHT Humidity sensor
- BMP280 temperature and barometric pressure/altitude sensor
Key Features:
- ARM Cortex M4F processor with hardware floating point acceleration at 64MHz
- 1MB flash memory and 256KB SRAM
- Native open source USB stack with UF2 bootloader
- Bluetooth® Low Energy 2.4GHz radio, FCC / IC / TELEC certified module
- Up to +8dBm output power
- 21 GPIO pins, 6 x 12-bit ADC pins, up to 12 PWM outputs
- Hardware SPI, UART, I2C, and I2S on any pins
- Red and Blue LEDs for status and NeoPixel for colorful feedback
- Power enable pin, reset button, SWD debug pads
- Compatible with all Adafruit FeatherWings
- Compact and lightweight (51 x 23 x 7.2 mm, 6 grams)
This board is perfect for building BLE peripherals and centrals using CircuitPython or Arduino. It offers a comprehensive set of sensors for environmental and motion tracking in a small feather form factor.
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