Using LCD modules with your Arduino Raspberry is popular, however the amount of wiring requires time and patience to wire it up correctly - and also uses a lot of digital output pins. That's why these I2C backpacks modules which only four wires - power, GND, data and clock. LCD modules that have a HD44780-compatible interface with various screen sizes.
Feature:
- HD44780 LCD interface compatible
- Suitable for most 1602 1604 2004 LCD module
- Many of Ardiuno Raspberry library support
- I2C standard, work only 4 wires. VCC GND Data Clock
- 3 Pair solder pad for address select
- A short pin for LCD module back light ON and OFF
- Adjustable LCD contrast
- I2C bus pull high on and off
- I2C chain port
PCF8574T PCF8574AT I2C IIC Backpacks V2 for HD44780 Compatible LCD Module
- Product Code: PCF8574-V2
- Availability: In Stock
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$3.49