What Is I2C? The I2C protocol involves using two lines to send and receive data: a serial clock pin (SCL) that the Arduino Controller board pulses at a regular interval, and a serial data pin (SDA) over which …

Aug 5, 2025 · Due to the hardware design and various architectural differences, the I2C pins are located in different places. The pin map just below highlights the default pins, as well as additional ports …

Jul 17, 2024 · In this tutorial we will control the built-in LED of an Arduino Nano Every from another Arduino Nano Every. To do so, we will connect both boards using a wired communication protocol …

Jul 13, 2025 · A library for I2C LCD displays. The library allows to control I2C displays with functions similar to LiquidCrystal library.

Jun 13, 2022 · Browse through hundreds of tutorials, datasheets, guides and other technical documentation to get started with Arduino products.

Nov 29, 2018 · The I2CScanner Library implements a scanner to locate I2C devices, and determine if a device is connected.

Dec 17, 2024 · I2C is a highly efficient protocol that enables multiple devices to communicate on just two wires. In this example, we demonstrated how to read data from an I2C-connected sensor, opening …

Oct 7, 2025 · We've learned about how I2C works, and how that relates to Qwiic. We've also learned how the Arduino UNO R4 WiFis Qwiic connector is configured and how to make use of it to …

Find out how to wire an LCD to an Arduino, and how to use the LiquidCrystal library through a set of useful examples.

Mar 7, 2025 · This library provides an implementation of the I2C protocol using software-based methods. It allows communication over I2C without relying on hardware I2C pins.