I2C Serial Interface Adapter Module

I2C Serial Interface Adapter Module has a inbuilt PCF8574 I2C chip that converts I2C serial data to parallel data for the LCD display.

These modules are currently supplied with a default I2C address of either 0x27 or 0x3F. To determine which version you have check the black I2C adaptor board on the underside of the module. If there a 3 sets of pads labelled A0, A1, & A2 then the default address will be 0x3F. If there are no pads the default address will be 0x27.

The module has a contrast adjustment pot on the underside of the display. This may require adjusting for the screen to display text correctly.

Weight 10 g
Dimensions 4 × 2 × 1 cm
Input Voltage Range(VDC)

5

PCB Size ( L x W ) mm

42 x 20

power supply.

5V

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