7-9V via DC barrel jack or 5V via Micro USB

1 device

Adafruit METRO M0 Express

Dev Board
Adafruit METRO M0 Express

Arduino Uno-compatible development board powered by ATSAMD21G18 Cortex M0+ at 48MHz with 256KB flash, 32KB SRAM, 2MB SPI flash, and CircuitPython pre-loaded. Features Arduino shield compatibility and

ATSAMD21G18 ARM Cortex M0+32 KB256 KB25 GPIO
prototypingeducationArduino ShieldData Logging
~$25View

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