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Circuit Diagram . Working Explanation of Communication between two Arduino using I2C. Here for demonstrating I2C communication in Arduino, we use Two Arduino UNO with Two 16X2 LCD display attached to ...

The hardware configuration described have been tested with an Arduino UNO R3, a 16×2 LCD, and an I2C LCD backpack purchased from an eBay seller. Further, the example sketch has been fully tested with ...

The LCD I2C pins SDA connected to A4 pin of Arduino Uno, SCL to A5 pin of Arduino Uno, Vcc to 5V pin of Arduino Uno, gnd to gnd pin of Arduino Uno. When alcohol level is 0.03% per 100ml of blood or ...

I hooked them up to an Arduino Uno board with a Parallax Serial 16×2 Character LCD. ... The hardware implementation is really simple since both ICs communicate to the Arduino via the 2-wire I2C port; ...