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Feather M4 Express
Adafruit Industries$22-$23
Features
- ATSAMD51J19 Cortex M4 at 120 MHz with FPU, 512 KB Flash, 192 KB RAM
- CircuitPython ships pre-installed; also fully Arduino IDE compatible
- Built-in NeoPixel status LED and 2 MB SPI Flash for project files
- LiPo battery connector with onboard charging — runs standalone off battery
- Compatible with the entire Feather Wing add-on ecosystem
Description
Adafruit's flagship Feather ecosystem board, built around a 120 MHz ATSAMD51J19 Cortex M4 processor with floating-point support. Made in Brooklyn, NY, it ships with CircuitPython pre-installed, a built-in NeoPixel status LED, 2 MB SPI Flash for storing code and files, and native USB — all on a 51 mm × 23 mm board with a LiPo battery connector.
Made in the USA
Designed and PCB-assembled at Adafruit's factory in Brooklyn, New York.
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