Never forget to set a fuse in init.lua gpio.mode(6, gpio.INPUT) EnableBoot=gpio.read(6) if EnableBoot==0 then dofile("main.lua") else print("Device will not continue booting...") end Consider we have a text with id t0 on Nextion. To test two way communication, we put a button on Nextion, which send “Hello from Nextion” over serial. This incoming data is also