Book Image

Arduino for Kids

By : Priya Kuber, Rishi Gaurav Bhatnagar, Vijay Varada
Book Image

Arduino for Kids

By: Priya Kuber, Rishi Gaurav Bhatnagar, Vijay Varada

Overview of this book

The mission of this book is to integrate technology with the tools that children already use for crafts so that they feel that the technology is an extension of their playtime. We use coding, sensors, and micro-controllers integrated with art and craft supplies, origami, and Playdough. There are 10 fun-filled chapters that talk to children directly, and give clear instructions for non-technical parents too. We use Arduino as the controller of choice due to its easy availability and large community. By the end of the book, children will comfortably be able to set up their Arduino, read and understand code, manipulate code, and ultimately write their own code for projects. They will also be able to use basic sensors and know how components connect to each other. All the learning takes place with lots of colorful pictures and the circuits are neatly presented using wiring.
Table of Contents (18 chapters)
Arduino for Kids
About the Authors
About the Reviewers
Customer Feedback

I'm thirsty!

One of the biggest challenges we will be tackling in this project is to figure out if our plant needs to be watered or not.

We do this by measuring the moisture, or the water content of the soil that the plant is in. We will need to measure some quantifiable parameter that directly relates to the moisture of the soil.

This is where our sensor becomes important. As we have discussed before, a sensor is something that converts a physical parameter into an electrical signal that can be measured. In this case, the physical parameter is the soil moisture itself that we want to convert into electric signals.

Commercial soil moisture sensors estimate water content based on the dielectric constant of the soil. The dielectric constant can be thought of as the soil's ability to conduct electricity. The dielectric constant of soil increases as the water content of the soil increases.

This is due to the fact that the conductivity of water is much more than that of soil and its components...