This board is crafted as a sleek, Bluetooth-enabled driver board specifically tailored for our Adafruit LED Glasses RGB LED matrix. However, it functions admirably as a stand-alone development board for the Nordic nRF52840 chipset. With its slender design, optional LiPo battery support, a selection of sensors, and a Stemma QT port for seamless integration of additional devices or sensors using I2C plug-and-play, it provides versatility for various applications.
Although resembling a Feather, it distinguishes itself by lacking breakout pins, ensuring a compact form factor. If you require access to GPIO pins, we recommend considering an nRF52840 ItsyBitsy, nRF52840 Feather, or Feather Sense.
Package Includes:
1 x Adafruit LED Glasses Driver – nRF52840 Sensor Board
Raspberry Pi 4 Model-B with 4 GB RAM
SanDisk Ultra Curve 64GB USB 3.2 Pen Drive 100MB/s
Official Raspberry Pi Global Shutter Camera
Creality Ender-PLA+ 3D Printing Filament 1.75mm (1kg – Red)
RepRap MK2B 3D printers Dual Power PCB Heat Bed With 18AWG Cable
STMICROELECTRONICS NUCLEO-G491RE Development Board, STM32 Nucleo-64, STM32G491RET6U, 32bit, ARM Cortex-M4 




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