I have attached an ESP8266 to a mega via Serial (TX/RX). When the ESP8266 gets an HTML command it can pass instructions to the Mega. This all works fine. What I realized is when the two devices are connected over TX/RX I cannot upload fresh sketches to either device. I have to disconnect them. Any…

When ESP8266 is connected to Mega via TX/RX - cannot upload new sketches

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