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 …

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 …

Mar 7, 2016 · Browse through hundreds of tutorials, datasheets, guides and other technical documentation to get started with Arduino products.

Oct 7, 2025 · Learn how to set up the Arduino UNO R4 WiFi, the fourth revision of our most popular and important development board.

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

Oct 7, 2025 · I2C lets you connect multiple I2C-compatible devices in series using only two pins. The controller will send out information through the I2C bus to a 7-bit address, meaning that the technical …

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.

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 …

Oct 14, 2025 · Browse through hundreds of tutorials, datasheets, guides and other technical documentation to get started with Arduino products.