✍ Almost every electronics enthusiast has run into pin issues with 1602, 2004 or the like LCDs. This module has a PCF8574T / PCF8574 onboard which reduces the number of data pins needed to control the LCD down to 2! This excludes the power/ground pins which are also required. This I2C-Backpack featuring the PCF8574T-I2C-Driver can be soldered behind a standard 1602- or 2004-LCD - after that, only 2 I/O-Pins are required to get the LCD up and running.Additionally, you can adjust the contrast with a potentiometer on the backpack, as well as completely disable the backlight with a jumper.

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▼ Features :-
- For all standard 5V 16 Chars, 2 Lines and 20 Chars, 4 Lines LCD
- PCF8574T / PCF8574 Driver
- Potentiometer for Contrast
- Disable Backlight by jumper
- Connector Pins: SDA / SCL / VCC / GND
- Arduino-Library LiquidCrystalI2C available
- Arduino IDE Example ready
- Size: 40mm x 18mm