I2C

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Contributors: SFUptownMaker

Resources and Going Further

I2C is a relatively complex interface, and there are many resources out there to help you deal with it. Below are some of the more informative ones.

To use I2C over long distances, check out the dedicated PCA9615 differential I2C bus extender.

Qwiic Differential I2C Bus Extender (PCA9615) Hookup Guide

May 31, 2018
Learn how to extend the range of your I2C communication bus with the Qwiic differential I2C bus extender (PCA9615 ) breakout board.

Or check out our SPI and I2C tutorial with a Raspberry Pi.

Raspberry Pi SPI and I2C Tutorial

October 29, 2015
Learn how to use serial I2C and SPI buses on your Raspberry Pi using the wiringPi I/O library for C/C++ and spidev/smbus for Python.

Need some inspiration for your next project? Check out some of these related tutorials:

Garmin LIDAR-Lite v4 (Qwiic) Hookup Guide

Connecting the Garmin LIDAR-Lite v4 to a microcontroller just got easier! Check out our hookup guide to get started.

SparkFun Photodetector (MAX30101) Hookup Guide

The SparkFun Photodetector - MAX30101 (Qwiic) is the successor to the MAX30105 particle sensor, a highly sensitive optical sensor. This tutorial will get you started on retrieving the raw data from the MAX30101 sensor.

Qwiic Digital Desk Sign with MicroMod

Make a Qwiic-enabled digital desk sign with a MicroMod SAMD51 Processor Board's USB Host and a USB keyboard!

MicroMod mikroBUS™ Carrier Board Hookup Guide

This carrier board takes advantage of the MicroMod, Qwiic, and the mikroBUS™ ecosystems and allows users to take advantage of the growing number of 7 MicroMod processor boards, 83 Qwiic (add-on) boards, and +1100 drop-in Click boards™, which equates to +51M different board combinations. Click to learn more.

Looking for more inspiration? Check out some of these blog posts for ideas: