ESP32 HTTP GET and HTTP POST with Arduino IDE (JSON, URL Encoded, Text)
In this guide, you’ll learn how to make HTTP GET and HTTP POST requests with the ESP32 board with Arduino IDE. We’ll cover examples on how to get values, post …
ESP32 Projects
ESP32 MQTT – Publish DHT11/DHT22 Temperature and Humidity Readings (Arduino IDE)
Learn how to publish temperature and humidity readings from a DHT11 or DHT22 sensor via MQTT with the ESP32 to any platform that supports MQTT or any MQTT client. As …
ESP32 MQTT – Publish BME280 Sensor Readings (Arduino IDE)
Learn how to publish BME280 sensor readings (temperature, humidity and pressure) via MQTT with the ESP32 to any platform that supports MQTT or any MQTT client. As an example, we’ll …
ESP32 Digital Inputs and Digital Outputs (Arduino IDE)
In this getting started guide you’ll learn how to read digital inputs like a button switch and control digital outputs like an LED using the ESP32 with Arduino IDE. Prerequisites …
ESP32 MQTT – Publish DS18B20 Temperature Readings (Arduino IDE)
Learn how to publish DS18B20 temperature readings via MQTT with the ESP32 to any platform that supports MQTT or any other MQTT client. As an example, we’ll publish sensor readings …
ESP32 NTP Client-Server: Get Date and Time (Arduino IDE)
Learn how to request date and time from an NTP Server using the ESP32 with Arduino IDE. Getting date and time is useful in data logging projects to timestamp readings. …
ESP32 Email Alert Based on Temperature Threshold (change values on web server)
Learn how to send an email alert with the ESP32 based on a temperature threshold. The ESP32 also hosts a Web Server that shows the latest sensor readings and input …
ESP32/ESP8266 Thermostat Web Server – Control Output Based on Temperature
In this project, you’ll build an ESP32 / ESP8266 Thermostat Web Server with an input field to set a temperature threshold value. This allows you to automatically control an output …
ESP-NOW Two-Way Communication Between ESP32 Boards
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 …
Get ESP32/ESP8266 MAC Address and Change It (Arduino IDE)
This guide shows how to get the ESP32 or ESP8266 NodeMCU boards MAC Address using Arduino IDE. We also show how to change your board’s MAC Address. What’s a MAC …
Getting Started with ESP-NOW (ESP32 with Arduino IDE)
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 …
ESP32 Client-Server Wi-Fi Communication Between Two Boards
This guide shows how to setup an HTTP communication between two ESP32 boards to exchange data via Wi-Fi without an internet connection (router). In simple words, you’ll learn how to …
ESP32 Relay Module – Control AC Appliances (Web Server)
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 …
ESP32 LoRa Sensor Monitoring with Web Server (Long Range Communication)
In this project, you’ll build a sensor monitoring system using a TTGO LoRa32 SX1276 OLED board that sends temperature, humidity and pressure readings via LoRa radio to an ESP32 LoRa …