To communicate with each LCD via I2C, two TCA9548A I2C multiplexers are connected to an Arduino, along with an RTC to keep track of the time and date itself.

I2C protocol makes it easier to connect more ICs using only 2 wires SDA and SCL and allows communication between them at relatively low speed. The I2C bus or TWI (Two Wire Interface) allows a single ...

I2C Arduino GPS Shield. 11 Comments . by: Mike Nathan. May 24, 2011. Title: Copy. Short Link: Copy [Wayne] wrote in to share an item he just finished working on, an I 2 C GPS shield for the Arduino.

The Alphanumeric LCD for Arduino will be our first circuit: using only one component, and of course the LCD, we can povide our Arduino board with at least a 16×2 alphanumeric LCD display that we will ...