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DIY Microcontroller Projects for Hobbyists

You're reading from   DIY Microcontroller Projects for Hobbyists The ultimate project-based guide to building real-world embedded applications in C and C++ programming

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Product type Paperback
Published in Jul 2021
Publisher Packt
ISBN-13 9781800564138
Length 320 pages
Edition 1st Edition
Languages
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Authors (2):
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Miguel Angel Garcia-Ruiz Miguel Angel Garcia-Ruiz
Author Profile Icon Miguel Angel Garcia-Ruiz
Miguel Angel Garcia-Ruiz
Pedro Cesar Santana Mancilla Pedro Cesar Santana Mancilla
Author Profile Icon Pedro Cesar Santana Mancilla
Pedro Cesar Santana Mancilla
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Toc

Table of Contents (16) Chapters Close

Preface 1. Chapter 1: Introduction to Microcontrollers and Microcontroller Boards 2. Chapter 2: Software Setup and C Programming for Microcontroller Boards FREE CHAPTER 3. Chapter 3: Turning an LED On or Off Using a Push Button 4. Chapter 4: Measuring the Amount of Light with a Photoresistor 5. Chapter 5: Humidity and Temperature Measurement 6. Chapter 6: Morse Code SOS Visual Alarm with a Bright LED 7. Chapter 7: Creating a Clap Switch 8. Chapter 8: Gas Sensor 9. Chapter 9: IoT Temperature-Logging System 10. Chapter 10: IoT Plant Pot Moisture Sensor 11. Chapter 11: IoT Solar Energy (Voltage) Measurement 12. Chapter 12: COVID-19 Digital Body Temperature Measurement (Thermometer) 13. Chapter 13: COVID-19 Social-Distancing Alert 14. Chapter 14: COVID-19 20-Second Hand Washing Timer 15. Other Books You May Enjoy

Showing sensor data results over the internet

Having objects connected to the internet will allow you to access their data from anywhere that has a connection to that network.

This is why we gave our project the ability to become a web server and thus be able to access the state of the plant pot from any web browser.

For this project, access can only be from our Wi-Fi network. To test its operation, we are going to access the developed web app from any mobile or desktop web browser. Proceed as follows:

  1. Open a web browser and go to the IP address of our server (see Figure 10.12). You should see our landing page to monitor our plant pot, as shown in the following screenshot:
    Figure 10.13 – Web app landing page

    Figure 10.13 – Web app landing page

  2. On the landing page, you can simply press the button every time you want to measure the humidity of the plant pot. If the soil is dry, we will see a representative image and a legend stating Soil is too dry, as illustrated in the following screenshot:
    Figure 10.14 – Web app screen for dry soil

    Figure...

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