features:<br />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.<br />i2c address: 0x20~0x27 (the original address is 0x20，you can change it yourself)<br />supply voltage: 5v<br />the backlight and contrast is adjusted by potentiometer<br />come with 2 iic interface， which can be connected by dupont line or iic dedicated cable<br />i2c address: 0x27 (i2c address: 0x20~0x27 (the original address is 0x27，you can change it yourself)<br />compatible for 1602 lcd<br />weight:5g<br />size:5.5x2.3x1.4cm<br /><br />package contents:100% <br />1x iic/i2c/twi/spi serial interface module port