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By chicoDaMan
#72931 Hi - I own a lot of NodeMCU ESP8266 units that work fine. I just bought two more from Amazon (Amica). One of them works fine with my existing sketches but the other, although it seems to program ok, appears to send it's serial output at the wrong baud rate (same sketch works fine with the other new NodeMCU). I've tried all the available serial rates in the IDE but none work.

Oddly, the boot message works ok (at 115200) but as soon as my serial monitor code occurs I get garbage characters. And loading a simple blink sketch seems to work but the blink rate is faster than it should be. With a wifi sketch that connects to my wifi AP just fine with the other NodeMCU, the questionable unit won't connect. But the flashing LED that indicates it's trying to connect flashes somewhat faster than the other unit's LED before it connects.

I can easily return the questionable unit to Amazon for a replacement, but was wondering if anyone has seen a similar problem, and if there might be a fix....?

Thanks...