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By guardineer
#79303 Am using ESP8266 with Open-Smart ESP-01 Adapter with Arduino IDE 1.8.7.

WiFIScan.ino compiles OK, uses "Generic ESP8266 board", works intermittently. Direct plug into PC USB seemed to help.

Then when uploading "esp8266_one_network.ino" to access one specific network, errors always show up : "espcomm_sync failed, error: espcomm_open failed, error: espcomm_upload_mem failed".

Tried deleting older versions of the following and"C:\Users\Name\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.4.2

Tried deleting esp8266 Boards Manager and re-installing.

Any help would be very much appreciated.