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Top 5 Positive Customer Reviews for d1 esp32
Works just as intended. My only complaint is that the CHG led keeps on blinking even though there's nothing to charge. I'm sure it's something that can be fixed, I've never had a board with an on board charging circuit. This is a little new to me.
The coil on it is a bit broken (just the plastic parts) but it seems to still work in a short test with charging and then getting 5V output from the battery. During charging, the 5V output is not stabilized, hence it will drop and behave like in the specification for charging lithium batteries.
Tested and works, had different header delivered than in the picture but doesn't mater as you might anyway need other depending on the target usage. Pin-out and install guide for arduino IDE is available online in the MH Forum or just google "MH-ET LIVE ESP-32 Devkit/Mini kit User Guide"