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Practical Python Programming for IoT

You're reading from  Practical Python Programming for IoT

Product type Book
Published in Nov 2020
Publisher Packt
ISBN-13 9781838982461
Pages 516 pages
Edition 1st Edition
Languages
Author (1):
Gary Smart Gary Smart

Table of Contents (20) Chapters

Preface Section 1: Programming with Python and the Raspberry Pi
Setting Up your Development Environment Getting Started with Python and IoT Networking with RESTful APIs and Web Sockets Using Flask Networking with MQTT, Python, and the Mosquitto MQTT Broker Section 2: Practical Electronics for Interacting with the Physical World
Connecting Your Raspberry Pi to the Physical World Electronics 101 for the Software Engineer Section 3: IoT Playground - Practical Examples to Interact with the Physical World
Turning Things On and Off Lights, Indicators, and Displaying Information Measuring Temperature, Humidity, and Light Levels Movement with Servos, Motors, and Steppers Measuring Distance and Detecting Movement Advanced IoT Programming Concepts - Threads, AsyncIO, and Event Loops IoT Visualization and Automation Platforms Tying It All Together - An IoT Christmas Tree Assessments Other Books You May Enjoy

Creating the APA102 circuit

In this section, we will create our APA102 circuit, as shown in the following diagram. We will do this on our breadboard in two parts:

Figure 8.4 – APA102 LED strip circuit schematic

Let's get started on the first part, which will be to place the components and wire up the low-voltage side of a logic level converter:

Figure 8.5 – APA102 LED circuit (part 1 of 2)

Here are the steps to follow. The step numbers match the numbered black circles in Figure 8.5:

  1. Place the logic level converter (logic level shifter) into the breadboard, positioning the low-voltage side toward your Raspberry Pi. Different logic level converters may have different labeling, however, it should be clear which is the low-voltage side. In our illustration, one side has an LV (Low Voltage) terminal while the other has an HV (High Voltage) terminal, which distinguishes the sides.
  2. Connect the negative rails on the left-hand side and right-hand...
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