IoT & Hardware
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You're reading from  Robotics at Home with Raspberry Pi Pico

Product typeBook
Published inMar 2023
Reading LevelBeginner
PublisherPackt
ISBN-139781803246079
Edition1st Edition
Languages
Python
Tools
Raspberry PiRaspberry Pi
Concepts
Robotics
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Author (1)
Danny Staple
Danny Staple
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Danny Staple

Danny Staple builds robots and gadgets as a hobbyist, makes videos about his work with robots, and attends community events such as PiWars and Arduino Day. He has been a professional Python programmer, later moving into DevOps, since 2009, and a software engineer since 2000. He has worked with embedded systems, including embedded Linux systems, throughout the majority of his career. He has been a mentor at a local CoderDojo, where he taught how to code with Python. He has run Lego Robotics clubs with Mindstorms. He has also developed Bounce!, a visual programming language targeted at teaching code using the NodeMCU IoT platform. The robots he has built with his children include TankBot, SkittleBot (now the Pi Wars robot), ArmBot, and SpiderBot.
Read more about Danny Staple

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Introduction to I2C communication

You encountered I2C communication in earlier chapters. Chapter 1, discussed how I2C is a data bus that carries address information, allowing a primary device such as Raspberry Pi Pico to reach multiple devices on a single bus. We learned then that Raspberry Pi Pico has two hardware I2C buses. I2C (or I2C) is an acronym for Inter-Integrated Circuit.

In Chapter 7, Planning and Shopping for More Devices, we saw how we would be using I2C devices both for VL53L1X distance sensors along with an IMU.

How exactly does this bus work? Chapter 1, also mentioned that I2C has two wires – a Serial Clock line (SCL) and a Serial Data line (SDA). The following picture shows how devices send signals through them:

Figure 8.4 – I2C signals on the wire

The preceding diagram shows two graphs representing I2C signals. The horizontal axis is time, and the vertical axis when high is logic one, with low being logic zero. As shown...

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Robotics at Home with Raspberry Pi Pico
Published in: Mar 2023Publisher: PacktISBN-13: 9781803246079
© 2023 Packt Publishing Limited All Rights Reserved

Author (1)

author image
Danny Staple

Danny Staple builds robots and gadgets as a hobbyist, makes videos about his work with robots, and attends community events such as PiWars and Arduino Day. He has been a professional Python programmer, later moving into DevOps, since 2009, and a software engineer since 2000. He has worked with embedded systems, including embedded Linux systems, throughout the majority of his career. He has been a mentor at a local CoderDojo, where he taught how to code with Python. He has run Lego Robotics clubs with Mindstorms. He has also developed Bounce!, a visual programming language targeted at teaching code using the NodeMCU IoT platform. The robots he has built with his children include TankBot, SkittleBot (now the Pi Wars robot), ArmBot, and SpiderBot.
Read more about Danny Staple

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