Complete ESP32 tutorials starting from basics to advances level. ESP32 is a famous development board for the internet of things applications. Although, other IoT development boards are also available in the market. But this board gains popularity among embedded developers and hobbyists in a short time. Because of its on-board many features such as Bluetooth, BLE, WiFi, Crypto-Engine and many others.
In this tutorial, we will learn to use Timer as a wake-up resource from a deep sleep. First, we will put ESP32 into deep sleep mode and then see how to wake it up using a predefined time using a timer. Recommended Components The following components are used in this project or are helpful for … Read more
This tutorial will teach you how to capture and save a photo using the ESP32-CAM module onto a MicroSD card, including a timestamp as a filename with the current date and time. The image will be saved with a filename consisting of the date and time it was taken. ESP32 will get updated time from … Read more
In this tutorial, we will see how to erase the flash memory of an ESP32 using the esptool.py command-line utility in Windows, Linux, and MacOS, and discuss why and when you might want to do this. As with any electronic device, there may be times when you need to reset the ESP32 to its factory … Read more
In this tutorial, we will learn how to set up ESP32 as a BLE server and use the GATT service to send battery levels to the Android app. For demonstration, we will use the GATT service to send battery percentage levels to our android smartphone from ESP32. The ESP32 board will therefore act as a … Read more
In this tutorial, we will learn to make HTTPS requests with ESP32 (Hypertext Transfer Protocol Secure). We will briefly introduce you to HTTPS, SSL/TLS Certificates, how to obtain a server’s certificate and then finally program our ESP32 board to make HTTPS requests. We will show you two library examples for generating in Arduino IDE. These … Read more
In this tutorial, we will introduce you to Twilio with ESP32 to send text messages. Twilio is a communications web service that allows users to make and receive phone calls and SMS along with other communication functions. Although Twilio is not free to use but you can get started with a free trial account as … Read more
In this tutorial, we will learn about ESP32 I2C communication protocol using different I2C devices having same and different addresses. We will discuss how to use multiple I2C devices with ESP32 having the same address by incorporating a hardware solution. By using a TCA9548A I2C Multiplexer, we will be able to increase the I2C addresses … Read more
In this user guide we will learn to interface RCWL-0516 microwave radar sensor module with ESP32 using Arduino IDE and create an example for motion detection. We will discuss the components of RCWL-0516 sensor module, pinout, configuration, features, specifications, interfacing, 2D model, and applications. We have similar guides with Arduino and ESP8266 NodeMCU: Recommended Components … Read more
In this tutorial, we will learn about Hypertext Transfer Protocol Secure commonly known as HTTPS, and SSL/TLS encryption with ESP32 and ESP8266 boards. This guide includes a description of HTTPS and SSL/TLS encryption, why it is used, the working of SSL/TLS encryption, communicating over a network using HTTPS, and finally generating HTTPS requests with ESP32/ESP8266 … Read more
In this tutorial, we will learn to interface DS1307 RTC module with ESP32 development board. Firstly, we will look into these questions: What is RTC (Real-time clock)? Why real-time clock is used? How a RTC module communicates with ESP32 on an I2C communication bus? How to make a digital clock using ESP32 and DS1307 RTC … Read more