Over time there have been several additions to the specification so that there are now five operating speed categories. Originally, the I2C-bus was limited to 100 kbit/s operations. Just as external EEPROMs, Digital Temperature Sensors, LCD Controllers, OLED Display, RTC, and much more. It’s widely used for attaching lower-speed peripheral ICs to processors and microcontrollers in short-distance, intra-board communication. The I 2C is a multi-master, multi-slave, synchronous, bidirectional, half-duplex serial communication bus. I 2C (i-square-c) is an acronym for “Inter-Integrated-Circuit” which was originally created by Philips Semiconductors (now NXP) back in 1982. Get The ESP32 Full Course Kit (List of components).Or just refer to the table for the exact components to be used in practical LABs for only this specific tutorial.

You can either get the complete course kit for this series of tutorials using the link down below.

Arduino IDE For ESP32 (Setup Guide) Hardware Components.

Requirements For This Tutorial Prior Knowledge Without further ado, let’s get right into it! It’s something similar to the commonly known Arduino Wire library as we’ll see. Then, we’ll move to the Arduino Core libraries that implement drivers for the ESP32 I2C peripheral and how to use its API functions. We’ll discuss how ESP32 I2C works, how to change I2C default pins (SDA, SCL), how to connect multiple I2C devices on the bus with proper addressing, and how to create an ESP32 I2C scanner to check for available I2C devices on the bus and get their addresses. In this tutorial, you’ll learn about ESP32 I2C communication protocol (in Arduino IDE). Previous Tutorial Tutorial 8 Next Tutorial ESP32 I2C Tutorial: Set Pins, Multi Devices, I2C Scanner (Arduino IDE) ESP32 Course Home Page 🏠

Arduino wire library esp32