Thread: M5Paper e-ink device for DIY
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Old 03-07-2021, 12:26 PM   #79
hobnail
Running with scissors
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Quote:
Originally Posted by stevenaleach View Post
Note the battery connection... I don't know whether it's the battery (cheap one off of Amazon), or the Lolin board... but someone got the wires wrong... It didn't seem like the battery/charging circuit was working at first, and since there's only one way the connector can possibly connect it took me a couple days to notice that the board had a '+' printed next to the side of the connector with the black-lead from the battery... checking with the multi-meter verified that, assuming this is a standard connector, one of the two manufacturers got it wrong. After reconnecting appropriately (red to black and black to red), it ran from the battery... huh.. apparently the battery, board, or both have good protective circuits that prevented damage from the previously reversed connection. Nice.
A youtube video I watched showed the same problem with the reversed leads.
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