ESP8266 LUA scripting language development: high-low output peripherals articles -GPIO

 

 

 

Foreword

　　All LUA development API Reference

　　https://nodemcu.readthedocs.io/en/master/en/modules/gpio/

 

 

Schematic

　　

 

 

 

Just let GPIO2 output high

gpio.mode (. 4 , gpio.OUTPUT) // set output

gpio.write (4, 1) // output high

note:

There is a correspondence between GPIO

 

 

 

 

test

Lit.

 

 

 

 

 

 

 

 

Extinguish

gpio.mode(4, gpio.OUTPUT)
gpio.write(4, 0)

 

 

 

 

 

 

 

Spread

Control relay

 

 

 

 

 

 

 

 

 Therefore

gpio.mode(1, gpio.OUTPUT)
gpio.write(1, 1)