This is another great IIC/I2C/TWI/SPI Serial Interface. As the pin resources of Arduino controller is limited, your project may be not able to use normal LCD shield after connected with a certain quantity of sensors or SD card. However, with this I2C interface module, you will be able to realize data display via only 2 wires. If you already has I2C devices in your project, this LCD module actually cost no more resources at all. It is fantastic for Arduino based project.
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I2C Address: 0X20~0X27 (the original address is 0X20,you can change it yourself)
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Supply voltage: 5V
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the backlight and contrast is adjusted by potentiometer
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Come with 2 IIC interface.
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