failed to connect to esp8266
after successful compilation and uploading when it displays connecting i pressed the pushbutton as told and then the following error message is displayed.
esptool.FatalError: Failed to connect to ESP8266: Invalid head of packet (0x00).please help
Arduino Wireless-Connectivity-to-Arduino 10-11 min 10-20 sec
I would suggest you to follow the setup instructions again and not miss a single point and redo the procedure of uploading. Check whether pins are grounded properly and supply points giving required voltages.