- Operating Voltage: 5V
- Backlight and Contrast is adjusted by potentiometer
- Serial I2C control of LCD display using PCF8574
- Come with 2 IIC interface, which can be connected by Dupont Line or IIC dedicated cable
- Compatible for 16x2 LCD
I2C Module has an 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 checked the black I2C adaptor board on the underside of the module. If there 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.
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