This board is designed to be a thin, bluetooth-enabled driver board for our Adafruit LED Glasses RGB LED matrix. That said, it’s a perfectly good stand-alone development board for the Nordic nRF52840 chipset, with a very slim design, optional LiPo battery support, a few sensors, and a Stemma QT port for adding other devices or sensors with I2C plug-and-play.
The driver looks a little like a Feather but it does not have any breakout pins to keep it very compact. If you need access to GPIO pins, we recommend an nRF52840 ItsyBitsy, nRF52840 Feather or Feather Sense.
Features:
- ARM Cortex M4F (with HW floating point acceleration) running at 64MHz
- 1MB flash and 256KB SRAM
- Bluetooth Low Energy compatible 2.4GHz radio (Details available in the nRF52840 product specification)
- FCC / IC / TELEC certified module with up to +8dBm output power
- 2MB external QSPI flash for CircuitPython file storage
- Built in LIS3DH accelerometer and PDM microphone
- Red LED for general purpose blinking, plus a tiny NeoPixel for colorful feedback
- STEMMA QT connector for plug-and-play I2C support.
- JST PH 2-pin battery port with optional LiPoly charger
Package Include
1 x Adafruit LED Glasses Driver – nRF52840 Sensor Board
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