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boards/wemos-zero: add note for identification

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The variant with HW-819 is easier to buy these days and identical to
the original wemos-zero variant including the swapped D2/D4 pins.

Co-authored-by: mguetschow <mikolai.guetschow@tu-dresden.de>
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Marian Buschsieweke 2024-11-18 21:05:19 +01:00
parent 5381b6187f
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boards/wemos-zero/doc.txt
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@ -6,13 +6,14 @@
## Overview
The WeMos Zero is a cheap clone of Arduino Zero featuring a ATSAMD21G18A.
These boards either have a silkscreen "WeMos" or "HW-910" label on their back.
Unlike the original Zero, it does not include an embedded debugger/programmer.
Instead, the [UF2 Bootloader](https://github.com/microsoft/uf2-samdx1) is
used to program this board. The SAMD21 is a ARM Cortex-M0+ micro-controller.
It has 256KiB of flash memory and 32KiB of RAM.
Note: The official Arduino Zero using the native USB port and the Adafruit
Metro M0 Express should also work with board definition.
@note The official Arduino Zero using the native USB port and the Adafruit
Metro M0 Express should also work with this board definition.
## Hardware