NodeMCU Firmware and example for ESP-01

[mstroh76]

see
https://github.com/espressif/esptool
https://hackaday.io/project/159471-esp8266-lua-tutorials
https://hackaday.io/project/161063-esp8266-lua-tutorial-part-2

[mstroh76]

pip2 install esptool
esptool.py -h
export ESPTOOL_PORT=/dev/ttyAMA0
esptool.py flash_id