Connecting their SDA (data) and SCL (clock) lines, two Arduino Uno boards can be connected in the context of I²C, a type of see rial communication. One board is configured in master mode and the other ...

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the "pull up" resistors connect the SCL and SDA pins to the +3.3V pin on your arduino; they will ensure that the SDA and SCL wires stay at HIGH (3.3V) when not in use making sure the sensors work ...

It has only two wires, SDA and SCL to share information, out of which SCL is used for the clock signal and SDA is used for sending and receiving data. ... will be displayed on LCD. Arduino IDE has ...