In this guide, we’ll show you how to establish a two-way communication between two ESP32 boards using ESP-NOW communication protocol. As an example, two ESP32 boards will exchange sensor readings …
Learn how to use ESP-NOW to exchange data between ESP32 boards programmed with Arduino IDE. ESP-NOW is a connectionless communication protocol developed by Espressif that features short packet transmission. This …
Can you believe that 2019 is over? It’s hard to believe that another year has just passed by so quickly and that Random Nerd Tutorials is almost 7 years old! …
Using a relay with the ESP32 is a great way to control AC household appliances remotely. This tutorial explains how to control a relay module with the ESP32. We’ll take …
Using a relay with the ESP8266 is a great way to control AC household appliances remotely. This tutorial explains how to control a relay module with the ESP8266 NodeMCU. We’ll …
Random Nerd Tutorials Courses <a href=”https://randomnerdtutorials.com/learn-esp32-with-arduino-ide/”> <img src=”https://randomnerdtutorials.com/wp-content/uploads/elementor/thumbs/Learn-ESP32-with-Arduino-IDE-eBook-3rd-edition-cover-image-qtt5kwng4iaoewd6bex7ytx635y98z2oth832w3dog.jpg” title=”Learn-ESP32-with-Arduino-IDE-eBook-3rd-edition-cover-image” alt=”Learn ESP32 with Arduino IDE eBook 3rd edition cover image” loading=”lazy” /> </a> <h2><a href=”https://randomnerdtutorials.com/learn-esp32-with-arduino-ide/”>Learn ESP32 with Arduino IDE (3rd Edition)</a></h2> …
The TTGO LoRa32 SX1276 OLED is an ESP32 development board with a built-in LoRa chip and an SSD1306 0.96 inch OLED display. In this guide, we’ll show you how to: …
The ESP32 has two I2C bus interfaces that can serve as I2C master or slave. In this tutorial we’ll take a look at the I2C communication protocol with the ESP32 …
The ESP32 chip comes with 48 pins with multiple functions. Not all pins are exposed in all ESP32 development boards, and there are some pins that cannot be used.
In this project we’re going to create an SMS notification system with the T-Call ESP32 SIM800L module that sends an SMS when sensor readings are above or below a certain …
This project shows how to connect the TTGO T-Call ESP32 SIM800L board to the Internet using a SIM card data plan and publish data to the cloud without using Wi-Fi. …
This tutorial shows how to build a web server that serves HTML and CSS files stored on the ESP8266 NodeMCU filesystem (SPIFFS) using Arduino IDE. Instead of having to write …
This tutorial is a step-by-step guide that shows how to build a standalone ESP8266 Web Server that controls two outputs (two LEDs). This ESP8266 NodeMCU Web Server is mobile responsive …
In this guide, you’ll learn how to use interrupts and timers with the ESP8266 NodeMCU using Arduino IDE. Interrupts allow you to detect changes in the GPIO state without the …