:: Flash ESP8288-12 4MB chip with Espruino
set /p pport=Enter a Com port 
echo %pport%
pause
esptool.py --port %pport% --baud 115200 write_flash --flash_freq 40m --flash_mode qio --flash_size 4MB 0x0000 "boot_v1.6.bin" 0x1000 espruino_esp8266_user1.bin 0x3FC000 esp_init_data_default.bin 0x3FE000 blank.bin
pause

:: To flash a 4MB esp8266 (e.g. esp-12) using the serial port use:
:: esptool.py --port [/dev/ttyUSB0|COM1] --baud 115200 write_flash \
::  --flash_freq 80m --flash_mode qio --flash_size 32m \
::  0x0000 "boot_v1.6.bin" 0x1000 espruino_esp8266_user1.bin \
::  0x3FC000 esp_init_data_default.bin 0x3FE000 blank.bin