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How to check a generic esp8266 01

PostPosted: Wed Aug 10, 2016 5:42 pm
by spica
hi, I manage to test a blink example using this guide http://www.arduinesp.com/blink

It works ok with one module, but with other I got this error when uploading the same scketch

Code: Select allerror: failed reading byte
warning: espcomm_send_command: cant receive slip payload data


There is any way to check if the module is defective or it's missing bootloader?