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Product Name: IIC/I2C 2004 LCD module provides libraries with de

uno control board IO port is only 20, plus some sensor, SD card Han, relay modules and more, IO port is not enough,
The original 2004 screen requires 7 IO port can drive up, we have developed this module can help you save five IO ports, we send arduino library

uno control board IO port is only 20, plus some sensor, SD card Han, relay modules and more, IO port is not enough,

The original 2004 screen requires 7 IO port can drive up, we have developed this module can help you save five IO ports, we send arduino library

Product parameters:

1 Power supply voltage: +5 V

2 support the I2C protocol

3 with backlight and contrast adjustment potentiometer

4.4 Line Output easier.