Integrating the system control with relays and devices
by Ruben Oliva Ramos
Internet of Things Programming with JavaScript
- Internet of Things Programming with JavaScript
- Internet of Things Programming with JavaScript
- Credits
- About the Author
- www.packtpub.com
- Customer Feedback
- Preface
- 1. Getting Started with Raspberry Pi Zero
- 2. Connecting Things to the Raspberry Pi Zero
- 3. Connecting Sensors - Measure the Real Things
- Measuring flow sensor to calculate the volume of water
- Reading and counting pulses with Arduino
- Calculating water flow rate based on the pulses counted
- Calculating flow and volume of water:
- Measuring the concentration of gas
- Measuring the level of alcohol with a sensor
- Detecting fire with a sensor
- Measuring the humidity for plants
- Measuring the level of water in a recipient
- Measuring temperature, humidity, and light and displaying data on an LCD
- Detecting motion with a PIR sensor
- Detecting if the door is open with a reed switch
- Detecting who can get in the house with a fingerprint sensor
- Summary
- 4. Control-Connected Devices
- Making a simple web server with Node.js
- Controlling a relay from a Raspberry Pi Zero using Restful API and Node.js
- Controlling the relay using aREST commands from a web browser
- Configuring Node.js on a computer as a web server
- Monitoring temperature, humidity, and light using Node.js with Arduino Wi-Fi
- Monitoring temperature, humidity, and light using Node.js with Arduino Ethernet
- Summary
- 5. Adding a Webcam to Monitor Your Security System
- Interaction between Arduino and Raspberry Pi
- Arduino interface in Raspian
- Controlling an output connected to Arduino from Raspberry Pi Zero
- Controlling the Arduino board from Python
- Connecting a TTL serial camera to Arduino and saving pictures to a micro SD
- Detecting motion with the serial TTL camera
- Controlling a snapshot from Raspberry Pi
- Controlling your camera from a web page
- Monitoring your USB camera for security in a network
- Summary
- 6. Building a Web Monitor and Controlling Devices from a Dashboard
- Configuring MySQL database server
- Installing PhpMyAdmin for administrating databases
- Datalogger with MySQL
- Data queries from the database
- Controlling and dimming a LED
- Controlling the speed of a DC motor
- Controlling Lights with electrical circuits
- Other appliances
- Remote access from anywhere to your Raspberry Pi Zero
- Controlling lights and measuring current consumption
- Controlling and monitoring Arduino, Wi-Fi, and Ethernet shields on connected devices and sensors
- Summary
- 7. Building a Spy Police with the Internet of Things Dashboard
- 8. Monitoring and Controlling Your Devices from a Smart Phone
- Controlling a relay from a smart phone using APP Inventor
- Creating our first application
- Reading JSON response in Android Studio using ethernet shield
- Android application
- Controlling a DC motor using an Android Application
- Controlling outputs from android using your Raspberry Pi Zero
- Controlling outputs with Raspberry Pi via Bluetooth
- Summary
- 9. Putting It All Together
- Integrating the system - development projects
- Solar power monitor circuit
- Automatic irrigation system with a soil sensor
- Arduino water-level controller
- Bluetooth based home automation
- Controlling access with a matrix keyboard
- Controlling the door lock with a keypad
- Integrating the system control with relays and devices
- How to set up the power supplies
- Summary
In the following figure, we're integrating important parts of the book. We will show the connections in a house using a relay, and how you will apply and control the real load using a lamp:
In real life, we will see the devices connected and controlling the real world. In the following image, we can see the relay module that can control the loads with the electronics part:
The following image shows the final circuit. We see the real connections to the Arduino board, and how they control the real world.
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