Introduction to Electronic Filters

This book builts on "KiCad Like a Pro - Fundamentals and Projects" (ISBN 978-3-89576-626-8) and aims to help you practice your new KiCad skills by challenging you in a series of real-world projects. The projects are supported by a comprehensive set of recipes with detailed instructions on how to achieve a variety of simple and complex tasks. Design the PCBs for a solar power supply, an LED matrix array, an Arduino-powered datalogger, and a custom ESP32 board. Understand the finer details of the interactive router, how to manage KiCad project teams with Git, how to use an autorouter on 2 and 4-layer PCBs, and much more.KiCad 8 is a modern, cross-platform application suite built around schematic and design editors. This stable and mature PCB tool is a perfect fit for electronic engineers and makers. With KiCad 8, you can create PCBs of any complexity and size without the constraints associated with the commercial packages.Here are the most significant improvements and features in KiCad 8, both over and under the hood:- Modern user interface, completely redesigned from earlier versions- Improved and customizable electrical and design rule checkers- Theme editor allowing you to fully customize the look of KiCad on your screen- Ability to import projects from Eagle, CADSTART, and more- An improved and tightly integrated SPICE circuit simulator- Autorouting with the Freerouting plugin- Filters define which elements of a layout are selectable- Enhanced interactive router helps you draw single tracks and differential pairs with precision- New or enhanced tools to draw tracks, measure distances, tune track lengths, etc.- Enhanced tool for creating filled zones- A customizable coordinate system facilitates data exchange with other CAD applications- Realistic ray-tracing capable 3D viewer- Differential pair routing- Rich repositories of symbol, footprint, and 3D shape libraries- Python scripting API for programmatic customization and extensions- Improved footprint wizard for fast custom footprints

This book is a learning guide and a reference. Use it to learn Node-RED, Raspberry Pi Pico W, and MicroPython, and add these state-of-the-art tools to your technology toolkit. It will introduce you to virtual machines, Docker, and MySQL in support of IoT projects based on Node-RED and the Raspberry Pi Pico W.This book combines several elements into a platform that powers the development of modern Internet of Things applications. These elements are a flow-based server, a WiFi-enabled microcontroller, a high-level programming language, and a deployment technology. Combining these elements gives you the tools you need to create automation systems at any scale. From home automation to industrial automation, this book will help you get started.Node-RED is an open-source flow-based development tool that makes it easy to wire together devices, APIs, and online services. Drag and drop nodes to create a flowchart that turns on your lights at sunset or sends you an email when a sensor detects movement. Raspberry Pi Pico W is a version of the Raspberry Pi Pico with added 802.11n Wi-Fi capability. It is an ideal device for physical computing tasks and an excellent match to the Node-RED.Quick book facts- Project-based learning approach.- Assumes no prior knowledge of flow-based programming tools.- Learn to use essential infrastructure tools in your projects, such as virtual machines, Docker, MySQL and useful web APIs such as Google Sheets and OpenWeatherMap.- Dozens of mini-projects supported by photographs, wiring schematics, and source code. Get these from the book GitHub repository.- Step-by-step instructions on everything.- All experiments are based on the Raspberry Pi Pico W. A Wi-Fi network is required for all projects.- Hardware (including the Raspberry Pi Pico W) is available as a kit.