Issue Description : for first couple of program ( just basis one ) blinking of LED etc,it is working fine ( ESP 8266 ).but not able to see blinking of LED bulb at ESP8266 .But suddenly it stopped and after that whenever trying to compile any program. getting below error :
warning: espcomm_sync failed
error: espcomm_open failed
error: espcomm_upload_mem failed
how to fix this issue ?