In this tutorial, we will show you how to install a file system uploader plugin in Arduino IDE to upload files to ESP32 SPI flash file system (SPIFFS). By default, there is no support in Arduino IDE to upload files to ESP32. But we can install a plugin to add a file uploading feature in … Read more
In this tutorial, we will guide you through the process of connecting an I2C LCD to the ESP32 board. This comprehensive guide is applicable to the ESP8266 NodeMCU as well. The I2C LCD is a versatile 16×2 device, providing you with the capability to display 16 columns by two rows of alphanumeric characters. Moreover, you … Read more
In this tutorial, we will learn how to make HTTP POST requests with ESP32 and Arduino IDE. For demonstration, we will send HTTP POST requests to APIs like ThingSpeak and IFTTT. The ESP32 Dev board is quite powerful and also has built-in WiFi capability, which makes it an ideal choice for IoT projects. When working … Read more
In this tutorial, we will learn how to utilize the ESP32 with the Arduino IDE to create HTTP GET requests for commonly used APIs like ThingSpeak and OpenWeatherMap.org. The ESP32 development board is quite powerful and also has built-in WiFi capability, which makes it an ideal choice for IoT projects. When working on IoT projects, … Read more
One of the best projects you can consider doing with ESP32 is to control a 220-volt lamp from a web server. But you can also use the same procedure to control fans, lights, AC, or other electrical devices that you want to control remotely. This tutorial is about controlling a relay and a 220-volt lamp … Read more
In this user guide, we will learn how to publish sensor readings from ESP32 using MicroPython and Thonny IDE to Google Sheets using IFTTT as a third-party service. This guide will be helpful for the users who want to access data for a predetermined amount of time and also store it appropriately. Any preferred sensor, … Read more
As the Internet of Things (IoT) becomes more prevalent in our daily lives, there is a growing need for devices to communicate with each other seamlessly. The ESP32 microcontroller, with its Wi-Fi and Bluetooth capabilities, has become a popular choice for IoT projects. And when it comes to automation, IFTTT (If This Then That) is … Read more
In this tutorial, we will learn how to use an external interrupt to wake up the ESP32 from a deep sleep. There are two external wake up resources available such as an ext0 and ext1. When the state of a GPIO pin is changed, the ESP32 will wake up from deep sleep. There are two … Read more
In this tutorial, we will learn to use ESP32 touch pins as a wake-up source from a deep sleep. First, we will put ESP32 into deep sleep mode and then see how to wake it up using touch sensor pins. When the ESP32 is in deep sleep, it consumes very low power, making it an … Read more
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