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Adafruit HalloWing M0 Express

Adafruit HalloWing M0 Express

MPN: 3900
Adafruit Industries LLC
ATSAMD21G18 HalloWing M0 Express SAM D ARM® Cortex®-M0+ MCU 32-Bit Embedded Evaluation Board
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Overview

The Adafruit HalloWing M0 Express is a skull-shaped development board built around the ATSAMD21G18 ARM Cortex-M0+ microcontroller. It features a compact design integrated with a 1.44 inch 128x128 color TFT display and specialized connectors for rapid prototyping of wearables and interactive props.

Why Choose This Part

The board streamlines portable project development with an integrated LiPoly battery charger and a UF2 bootloader that enables drag-and-drop programming. It provides specialized JST ports for Neopixels and sensors, reducing the need for soldering in space-constrained wearable applications.

Applications

Electronic Badges
Utilize the built-in display and skull-shaped PCB for event-specific interactive name tags or artistic flair.
Cosplay Props
Integrate into costumes using the JST Neopixel port and battery recharging circuit for portable lighting effects.
Handheld Gaming
Develop simple 8-bit style games or animations using the 48MHz processor and dedicated GPIO for tactile inputs.

Getting Started

Connect the board via USB to use the pre-loaded UF2 bootloader for programming in CircuitPython or the Arduino IDE. Developers can leverage the 256KB of flash and 32KB of RAM to run complex graphics libraries for the onboard TFT display.

Also Consider

SAM D21 Xplained Pro MCHPMicrochip Technology - A standard rectangular evaluation kit for the ATSAMD21G18 providing full access to all MCU pins and embedded debugging.
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