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Currently I am playing with the ESP8266 WIFI module as many others are. Since I want to create some Arduino libraries for it, I am in the need to do some debugging. The Arduino only has one hardware UART. And if you wire anything to the atmega UART port you may run into problems when downloading new code to the Arduino. The Arduino programs the atmega via the hardware UART port and if something is connected it may cause trouble. For downloading you end up disconnecting and reconnecting the ESP m ...

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