How to identify the old and new versions of 86Duino Zero
Next to the USB-HOST connector on the 86Duino Zero, you can find the text starting with “DM222,” as shown in the figure below:
If it is marked with “DM222A”, the 86Duino Zero is an old version; if it is marked with “DM222B”, the 86Duino Zero is a new version.
86Duino Zero hardware description page
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