![I am using a 1602A screen, arduino uno and an i2c adapter. For some reason the backlight of my screen isn't working and I don't know if it is software problem or I am using a 1602A screen, arduino uno and an i2c adapter. For some reason the backlight of my screen isn't working and I don't know if it is software problem or](https://i.redd.it/i-am-using-a-1602a-screen-arduino-uno-and-an-i2c-adapter-v0-smtk6em4k99a1.png?width=1075&format=png&auto=webp&s=fdb6aaf3295b14eb9367faca2e891a309547c779)
I am using a 1602A screen, arduino uno and an i2c adapter. For some reason the backlight of my screen isn't working and I don't know if it is software problem or
![Arduino desde cero en Español - CapÃtulo 10 - Módulo LCD 1602A con librerÃa LiquidCrystal - YouTube Arduino desde cero en Español - CapÃtulo 10 - Módulo LCD 1602A con librerÃa LiquidCrystal - YouTube](https://i.ytimg.com/vi/JEZiHQY-JPI/mqdefault.jpg)
Arduino desde cero en Español - CapÃtulo 10 - Módulo LCD 1602A con librerÃa LiquidCrystal - YouTube
![Amazon.com: SunFounder IIC I2C TWI 1602 Serial LCD Module Display Compatible with Arduino R3 Mega 2560 16x2 : Electronics Amazon.com: SunFounder IIC I2C TWI 1602 Serial LCD Module Display Compatible with Arduino R3 Mega 2560 16x2 : Electronics](https://m.media-amazon.com/images/I/71TsnKeXQcL.jpg)