Book Image

TinyML Cookbook

By : Gian Marco Iodice
Book Image

TinyML Cookbook

By: Gian Marco Iodice

Overview of this book

This book explores TinyML, a fast-growing field at the unique intersection of machine learning and embedded systems to make AI ubiquitous with extremely low-powered devices such as microcontrollers. The TinyML Cookbook starts with a practical introduction to this multidisciplinary field to get you up to speed with some of the fundamentals for deploying intelligent applications on Arduino Nano 33 BLE Sense and Raspberry Pi Pico. As you progress, you’ll tackle various problems that you may encounter while prototyping microcontrollers, such as controlling the LED state with GPIO and a push-button, supplying power to microcontrollers with batteries, and more. Next, you’ll cover recipes relating to temperature, humidity, and the three “V” sensors (Voice, Vision, and Vibration) to gain the necessary skills to implement end-to-end smart applications in different scenarios. Later, you’ll learn best practices for building tiny models for memory-constrained microcontrollers. Finally, you’ll explore two of the most recent technologies, microTVM and microNPU that will help you step up your TinyML game. By the end of this book, you’ll be well-versed with best practices and machine learning frameworks to develop ML apps easily on microcontrollers and have a clear understanding of the key aspects to consider during the development phase.
Table of Contents (10 chapters)

Getting started with the Zephyr OS

In this recipe, we will install the Zephyr project, the framework used in this chapter to build and run the TFLu application on the emulated Arm Cortex-M3 microcontroller. At the end of this recipe, we will check whether everything works as expected by running a sample application on the virtual platform considered for our project.

Getting ready

To get started with this first recipe, we need to know what the Zephyr project is about.

Zephyr (https://zephyrproject.org/) is an open source Apache 2.0 project that provides a small-footprint Real-Time Operating System (RTOS) for various hardware platforms based on multiple architectures, including Arm Cortex-M, Intel x86, ARC, Nios II, and RISC-V. The RTOS has been designed for memory-constrained devices with security in mind.

Zephyr does not provide just an RTOS, though. It also offers a Software Development Kit (SDK) with a collection of ready-to-use examples and tools to build Zephyr-based...