Serial I2C LCD Daughter Board Module


EGP35.00

This is a RoHS compliant I2C Serial LCD Daughter board that can be connected to a standard HD44780 compatible 16×2 , 20×4 or 20×2 Character Display Module that supports 4 bit mode. All Character Modules sold on our site support 4 bit mode, and nearly all commercially available 16×2 and 20×4 line character modules support it too.

This board has a PCF8574 I2C chip that converts I2C serial data to parallell data for the LCD display.

There are many examples on internet for using this board with Arduino. Do a search for “Arduino LCD PCF8574”. The I2C address is 0x3F by default, but this can be changed via 3 solder jumpers provided on the board. This allows up to 3 LCD displays to be controlled via a single I2C bus (giving each one it’s own address).

  • 5V power supply
  • Serial I2C control of LCD display using PCF8574
  • Backlight can be enabled or disabled via a jumper on the board
  • Contrast control via a potentiometer
  • Can have 8 modules on a single I2C bus (change address via solder jumpers)address, allowing
  • Size:41.6mm x 19.2mm
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