So I got AT commands working on my Arduino Zero, but I am unable to figure out how to program the ESP8266 module through my Zero, everything I've tried has resulted in a failure. I did ground the GPIO 0 pin as instructed, so I'm unsure what I'm missing.

Programming ESP8266 through Zero

Juraj January 17, 2019, 8:40pm 13

so I have a MKR Zero and I flashed now the esp8266 over SerialPassthrough at first try. MKR Zero has only native USB port

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