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Check the listing for details. 10pcs IIC/I2C/TWI/SPI Serial Interface Board Module Port For 1602 LCD Display. Condition: New. Listed at 7.78 USD. 10PCS IIC I2C Adapter Serial Interface Board Module 5v Arduino 1602 2004 LCD. This is another great IIC/I2C/TWI/SPI Serial Interface. However, with this I2C interface module, you will be able to realize data display via only 2 wires.