Using an expander chip such as the MCP23017 provides an excellent way to increase the amount of hardware connectivity to the Raspberry Pi while also providing an additional layer of protection (it is cheaper to replace the expander chip Raspberry Pi).
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by Dr. Steven Lawrence Fernandes, Tim Cox
Raspberry Pi 3 Cookbook for Python Programmers - Third Edition
- Title Page
- Copyright and Credits
- Dedication
- Packt Upsell
- Contributors
- Preface
- Getting Started with a Raspberry Pi 3 Computer
- Introduction
- Connecting to Raspberry Pi
- Using NOOBS to set up your Raspberry Pi SD card
- Networking and connecting your Raspberry Pi to the internet via an Ethernet port, using a CAT6 Ethernet cable
- Using built-in Wi-Fi and Bluetooth on Raspberry Pi
- Configuring your network manually
- Networking directly to a laptop or computer
- Networking and connecting your Raspberry Pi to the internet via a USB Wi-Fi dongle
- Connecting to the internet through a proxy server
- Connecting remotely to Raspberry Pi over the network using VNC
- Connecting remotely to Raspberry Pi over the network using SSH (and X11 forwarding)
- Sharing the home folder of Raspberry Pi with SMB
- Keeping Raspberry Pi up to date
- Dividing Text Data and Building Text Classifiers
- Using Python for Automation and Productivity
- Predicting Sentiments in Words
- Creating Games and Graphics
- Detecting Edges and Contours in Images
- Creating 3D Graphics
- Building Face Detector and Face Recognition Applications
- Using Python to Drive Hardware
- Sensing and Displaying Real-World Data
- Introduction
- Using devices with the I2C bus
- Reading analog data using an analog-to-digital converter
- Logging and plotting data
- Extending the Raspberry Pi GPIO with an I/O expander
- Capturing data in an SQLite database
- Viewing data from your own webserver
- Sensing and sending data to online services
- Building Neural Network Modules for Optical Character Recognition
- Building Robots
- Interfacing with Technology
- Can I Recommend a Movie for You?
- Hardware and Software List
- Other Books You May Enjoy
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