Sensor Projects with Raspberry Pi : Internet of Things and Digital Image Processing
Better than I expected
Ross Freeman
Little Bird
Sensor Projects with Raspberry Pi : Internet of Things and Digital Image Processing
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A hands-on guide to building IoT and image processing projects with the Raspberry Pi. Starting with simple sensor circuits, the book progressively introduces...
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A hands-on guide to building IoT and image processing projects with the Raspberry Pi. Starting with simple sensor circuits, the book progressively introduces cloud connectivity, real-time alerts, and computer vision — providing practical skills applicable to mobile development and electrical engineering as well.
Topics Covered
- PIR Motion Detection – Build a motion detection system with a PIR sensor and Raspberry Pi
- Gas Leak Alarm – Use the MQ2 gas sensor to detect explosive and fire hazards, with remote alerts
- IoT with ThingSpeak – Send sensor data to a free IoT server and trigger Twitter notifications
- Weather Station – Combine DHT11 (humidity/temperature) and BMP085 (barometric pressure) sensors with ThingSpeak for real-time weather alerts
- Digital Image Processing – Use OpenCV on the Pi to build object classifiers and video surveillance systems
- Machine Learning Basics – Object recognition and motion-based image manipulation
What You'll Learn
- Working with ThingSpeak to receive real-time alerts from sensor systems
- Processing sensor inputs with skills transferable to mobile and machine learning projects
- Incorporating sensors into projects for interactive, real-world feedback
- Building object classifiers with OpenCV
Ideal For
- Hobbyists and makers working in robotics and IoT
- Electronics engineers expanding into sensor-based projects
- Programmers looking for hands-on Raspberry Pi applications
Package Contents
- 1× Sensor Projects with Raspberry Pi (book)
Jargon buster
Plain-language definitions for the technical terms used above.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- Motion detection
- The ability to sense that something has moved, either by comparing successive camera frames or by using a dedicated sensor such as a PIR (infrared) or radar module. When a product lists motion detection, movement can be used as a trigger so a system only acts or records when there is activity rather than running continuously.
- PIR sensor
- A passive infrared sensor detects changes in heat, usually from a person moving across its view. It matters because PIR sensors are common for lights and alarms, but they can miss people who are present but not moving much.
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