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ESP8266 Pinout Reference: How To Use ESP8266 GPIO Pins
I have this custom ESP8266 PCB, I have the Enable pin and GPIO0 (boot mode) pins connected, however even with GPIO0 pulled to low, when i try to upload the code it throws "Timed out waiting for packet header"... Is there something wrong with the ...
GPIO pins of ESP8266 and How to use efficiently -IoTbyHVM
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