# flashing firmware onto NodeMCU
esptool.py --port /dev/ttyUSB0 write_flash -fm qio 0x00000 nodemcu-master-9-modules-2019-04-08-19-43-38-float.bin

# connecting to NodeMCU via serial terminal
cu -l /dev/ttyUSB0 -s 115200 dir

# uploading code to NodeMCU
nodemcu-uploader upload motor.lua
nodemcu-uploader upload init.lua

# sending data over wifi via socket
nc 192.168.4.1 80