LCD Display Blue 1602 IIC, I2C, TWI

LCD Display Blue 1602 IIC, I2C, TWI

How-To Information, Example Software Sketch Here

This display uses a 2-wire communications method called "IIC", "I2C" "I squared C", and "TWI". All these mean the same thing. This a serial protocol that supports multiple devices on the same 2-wire bus (Plus Voltage and Ground, of course).  See the How-To for details.