Adafruit METRO M0 Express - ATSAMD21G18 Microcontroller Board

Adafruit METRO M0 Express - ATSAMD21G18 Microcontroller Board

Marsoni

M251S

$57.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Adafruit METRO M0 Express - ATSAMD21G18 Microcontroller BoardThe Adafruit METRO M0 Express is a powerful microcontroller board designed for CircuitPython and Arduino IDE, featuring the ATSAMD21G18 ARM Cortex M0+ running at 48 MHz with 3. 3V logic. This board offers a significant upgrade over the original Metro 328, with 256KB of flash memory, 32KB of RAM, and built in USB support without the need for an external serial converter chip. Power supply via 7 9V DC jack with on off switch or micro USB 5V source;

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I usually would buy XL size but in this case I bought XXL thinking since it's cotton it might shrink. But when I tried the T-shirt it was too small. My older XL sized T-shirt has 2 1/2" larger total shoulder width and 3" wider body width. See attached pictures. Length was also a bit shorter by about 1/2". I will to return it.

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Reviewed in the United States on April 15, 2026

Verified Purchase

Pattie B

Cuba, US

★★★★★ 2

Does not match the size

Size: 3X-Large, Color: Blue

Way smaller than the size indicated. Very thin material, almost see- thru.

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Reviewed in the United States on December 5, 2025