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Learn how to use ESP32 analog input pins using Arduino IDE. Analog pins are used to read various voltage levels. Table of Content Working of ADC ESP32 ADC ESP32 has two 12-bit SAR (Successive Approximation Register) ADCs. Channel No of Inputs GPIOs ADC1 8 32 to 39 ADC2 10 0, 2, 4, 12 to 15,…

Learn how to use ESP32 capacitive touch pins using Arduino IDE. We will explain the working of touch-sensing pins with an example. Table of Content Working of touch-sensing GPIOs ESP32 has 10 capacitive-sensing GPIOs, which detect variations induced by touching or approaching the GPIOs with a finger or other objects. The low-noise nature of the…

In this example, we will see how to create a simple web server using ESP32. We will see how to control LED wirelessly using a mobile or laptop. Table of Content Overview ESP32 has 10 capacitive-sensing GPIOs, which detect variations induced by touching or approaching the GPIOs with a finger or other objects. The low-noise…

Learn how to change the CPU frequency of ESP32 using Arduino IDE. We will explain methods for reading and changing the CPU frequency. Optimizing CPU speed can significantly impact performance and power consumption, and changing the clock speed can significantly change the power consumption of IoT devices. Table of Content Why to Change CPU Speed?…

The ESP32 microcontroller is a powerful tool in the world of IoT, embedded systems, and robotics, offering a wide range of functionalities. In this guide, we’ll break down the ESP32 pinout, explaining the purpose of each pin and how you can use them effectively in your projects. Pinout Diagram Power PinsGND 1 P Ground3V3 2…