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)

Taking pictures with the OV7670 camera module

Adding sight to the Arduino Nano is our first step to unlocking computer vision applications.

In this first recipe, we will build an electronic circuit to take pictures from the OV7670 camera module using the Arduino Nano. Once we have assembled the circuit, we will use the Arduino pre-built CameraCaptureRawBytes sketch to transmit the pixel values over the serial.

The following Arduino sketch contains the code referred to in this recipe:

  • 01_camera_capture.ino:

https://github.com/PacktPublishing/TinyML-Cookbook/blob/main/Chapter05/ArduinoSketches/01_camera_capture.ino

Getting ready

The OV7670 camera module is the main ingredient required in this recipe to take pictures with the Arduino Nano. It is one of the most affordable cameras for TinyML applications – you can buy it from various distributors for less than $10. Cost is not the only reason we went for this sensor, though. Other factors make this device...