Adafruit
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ARM Microcontroller
Adafruit LED Glasses Driver – nRF52840 Sensor Board
- 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 Circuit Python file storage
SKU: n/a -
Development Boards
Adafruit Feather RP2040
- RP2040 32-bit Cortex M0+ dual-core running at ~125 MHz
- 8 MB SPI FLASH
- Built-in 200mA+ lipo charger
- On-board STEMMA QT / Qwiic connector
- 3.3V regulator with 500mA peak current output
- USB Type C connector
- 264kB on-chip SRAM
- 21 x Multifunction GPIO
- 3.3V regulator with 500mA peak current output
SKU: n/a -
Development Boards
Adafruit Feather M4 Express – Featuring ATSAMD51 – ATSAMD51 Cortex M4
- ATSAMD51 32-bit Cortex M4 core
- 512 KB flash, 192 KB RAM
- 3.3V regulator with 500mA peak current regulator
- USB bootloader and serial port debugging
- Built-in 100mA lipoly charger with charging status indicator LED
SKU: n/a
Raspberry Pi X820 2.5 inch SSD Disk Expansion Board Supports USB3.0 Storage
Waveshare CM4 To Pi 4B Adapter for Raspberry Pi Alternative Solution for Raspberry Pi 4B, CM4 optional
Adafruit LED Glasses Driver – nRF52840 Sensor Board 

