ESP8266 Community Forum

- Sun Sep 24, 2017 10:01 am #70273 Hi,

i try to load example WifiScan on mi Arduino uno with ESP8266 connected.
But i've this essor:
warning: espcomm_sync failed
error: espcomm_open failed
error: espcomm_upload_mem failed
error: espcomm_upload_mem failed

How can i try to solve problem?

Raffaele

- Mon Sep 25, 2017 7:44 am #70287 Have you been able to load any programs? Like blink

- Mon Sep 25, 2017 8:00 am #70288 why do people allways try to use Arduino Uno as serial interface for ESP modules?
AND if they insist on doing so, why don't they use boardsearch to find relevant posts telling them that it is a PITA (and how it might work if at all) ...

- Mon Sep 25, 2017 10:33 am #70298
... and probably using the 3.3V from Arduino UNO, which is known not been able to deliver more than 150mA ...