add Coin M0 files

_board/bradanlanestudio_coin_m0.md

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+---
+layout: download
+board_id: "bradanlanestudio_coin_m0"
+title: "Bradán Lane STUDIO Coin M0 Download"
+name: "Bradán Lane STUDIO Coin M0"
+manufacturer: "Bradán Lane STUDIO"
+board_url: https://aosc.cc/eccn2025
+board_image: "bradanlanestudio_coin_m0.jpg"
+date_added: 2024-11-22
+family: atmel-samd
+features:
+  - USB-C
+---
+
+The "Coin M0" is a little round CircuitPython board with just enough features for a mini macropad.
+
+There's an ATSAMD21 microcontroller on board with 4MB of flash, Neopixels, touch pads, and a little speaker.
+
+The Coin M0 can run CircuitPython or Arduino very nicely and the flash storage is plenty for CircuitPython code, libraries, and data files (like sound effects).
+
+- ATSAMD21G1A 32-bit Cortex M0+ - 48 MHz 32 bit processor with 256KB Flash and 32 KB RAM
+- Native USB-C supported by every OS - can be used in **Arduino or CircuitPython** as USB serial console, MIDI, Keyboard/Mouse HID, even a little disk drive for storing Python scripts.
+- Can be used with Arduino IDE or CircuitPython
+- Three groups of RGB NeoPixel LEDs
+- Three Capacitive Touch pads
+- One speaker
+
+## Purchase
+
+Coming soon from [Bradán Lane STUDIO on Tindie](https://www.tindie.com/stores/bradanlane/)