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 see how to retain or remember the last state of GPIO pins on the ESP32 board after a reset using the Preferences library in Arduino IDE. Normally, when the ESP32 loses power or restarts, the previous state of the output is lost, causing potential disruptions in the system. However, with … Read more
In this tutorial, we will learn how to use Bluetooth Low Energy (BLE) on the ESP32 microcontroller using the Arduino IDE. We will establish communication between the ESP32 as a BLE server and an Android BLE application, enabling the transmission and reception of data between the two devices. First, we will configure ESP32 in both … Read more
In this tutorial, we will learn how to display images (format .png or .jpg) in ESP32 and ESP8266 web servers using Arduino IDE. For demonstration, we will build a web server with a simple HTTP protocol as well as an asynchronous library. We will see three different ways to embed images into a web page … Read more
In this tutorial, we will explore how to use the Bluetooth Classic on ESP32 with Arduino IDE. For demonstration, we will establish bidirectional data communication between the ESP32 and an Android cell phone over Bluetooth Classic. Firstly, we will see a simple example to send data from ESP32 to an Android app. After that, we … Read more
In this tutorial, we will see how to create a web server using ESP32 and ESP8266 boards to control outputs with a timer. Specifically, we will be controlling an onboard LED using a slider, allowing us to select a specific number of seconds. During this chosen time, the LED will remain in a HIGH state. … Read more
In this tutorial, we will learn how to get the current date and time from the NTP server with ESP32 acting as an NTP client and Arduino IDE. Accurate timekeeping is important for IoT applications and the NTP protocol provides a reliable way to synchronize the ESP32’s internal clock with a time server on the … Read more
In this tutorial, we will learn to get Getting Epoch and Unix time with ESP32 through the NTP server using Arduino IDE. Accurate timekeeping is important for IoT applications and the NTP protocol provides a reliable way to synchronize the ESP32’s internal clock with a time server on the internet. By following this step-by-step guide, … Read more
In this user guide, we will learn how to create an ESP32 Server-Sent Events (SSE) web server using the Arduino IDE. With this technique, we will build an ESP32-controlled web server that automatically updates sensor readings, such as temperature, pressure, and humidity, to all connected web clients. The clients will receive these updates from the … Read more
In this tutorial, we will learn how to add HTTP authentication to ESP32 and ESP8266 web servers using Arduino IDE build with the ESPAsyncWebServer library. In today’s interconnected world, security is paramount, and protecting access to sensitive resources on your Internet of Things (IoT) devices is essential. Whether you’re a hobbyist, a developer, or an … Read more
In this tutorial, we will create an ESP32 WebSocket server using the WebSocket communication protocol and the Arduino IDE. The user will be able to control the onboard LED of the ESP32 and can connect a relay to control AC loads. Through the WebSocket communication protocol, several clients can connect to the server concurrently without … Read more