The Arduino Wire library is a set of communication features used to learn and write information to and from different units. The library is crucial for DIY initiatives that contain controlling exterior elements akin to sensors, shows, and different microcontrollers. By utilizing a protocol referred to as Inter-Integrated Circuit (I2C), the Wire library drastically reduces the variety of wires required to attach units. The protocol is supported on all Arduino boards, together with the newest Arduino Nano Every model.

The I2C protocol solely requires two wires to attach exterior units. One wire (referred to as serial information or SDA) is chargeable for transferring information, whereas the opposite wire (serial clock or SLC) is used to synchronize the information change through a pulsing sign. Combined, they permit two units to ship and obtain a message utilizing bits of knowledge. Some Arduino boards characteristic the I2C pins somewhere else, and you’ll take a look at the complete {hardware} necessities for all Arduino boards on the Wire Library Reference page.