Adafruit ItsyBitsy M4 Express

Dev Board
Adafruit ItsyBitsy M4 Express

High-performance compact board with ATSAMD51 Cortex M4F at 120MHz, 192KB RAM, 512KB flash, 2MB SPI flash, dual 12-bit DAC/ADC, 18 PWM outputs, AES-256 crypto, and native USB. Measures 36mm × 18mm.

Microchip ATSAMD51 ARM Cortex M4F192 KB512 KB23 GPIO
~$15View

Adafruit GEMMA M0

Dev Board
Adafruit GEMMA M0

Coin-sized wearable microcontroller board with ATSAMD21E18 Cortex M0+ at 48MHz, 3 I/O sew pads, built-in RGB DotStar LED, and CircuitPython pre-installed. Designed for e-textiles and wearable projects

ATSAMD21E18 ARM Cortex M0+32 KB256 KB
~$10View

Adafruit ItsyBitsy M0 Express

Dev Board
Adafruit ItsyBitsy M0 Express

Compact 3.3V CircuitPython/Arduino board with ATSAMD21G18 Cortex M0+ at 48MHz, 32KB RAM, 256KB flash, 2MB SPI flash, 23 GPIO with 11 analog inputs, RGB DotStar LED, native USB. Measures 36mm × 18mm.

ATSAMD21G18 ARM Cortex M0+32 KB256 KB23 GPIO
~$12View

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