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Making Visual Data and Animation on an LCD

The ESP32 chip and module consists of general-purpose input/output (GPIO) pins to enable sensing and actuating. In this chapter, we will learn how to read sensor data from the ESP32 GPIO. We will also talk about using an LCD to display data with the ESP32 chip. In addition to this, we will show sensory information such as temperature and humidity in the LCD. Ultimately, we will build a simple IoT weather monitoring system with the ESP32 board. 

We will see how to work with an LCD by following step-by-step instructions. You will also learn how to use the ESP32 board to detect the weather and display it on LCD by the end of this chapter.

The following topics will be covered in this chapter:

  • Introduction to ESP32 GPIO
  • Introduction to IoT for weather monitoring systems
  • Reading temperature and humidity from a sensor device
  • Displaying information using an LCD
  • Making a weather monitoring system
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