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 …
CONTINUE READING »ESP32 Digital Inputs and Digital Outputs (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 …
CONTINUE READING »ESP32 MQTT – Publish DS18B20 Temperature Readings (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. …
CONTINUE READING »ESP32 NTP Client-Server: Get Date and Time (Arduino IDE)
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 …
CONTINUE READING »ESP32 Email Alert Based on Temperature Threshold (change values on web server)
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 …
CONTINUE READING »ESP32/ESP8266 Thermostat Web Server – Control Output Based on Temperature
Learn how to send emails with the ESP32 using an SMTP Server. We’ll show you how to send a simple email with HTML or raw text and how to send …
CONTINUE READING »ESP32 Send Emails using an SMTP Server: HTML, Text and Attachments (Arduino IDE)
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 …
CONTINUE READING »ESP-NOW Two-Way Communication Between ESP32 Boards
This guide shows how to get the ESP32 or ESP8266 boards MAC Address using Arduino IDE. We also show how to change your board’s MAC Address. What’s a MAC Address? …
CONTINUE READING »Get ESP32/ESP8266 MAC Address and Change It (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 …
CONTINUE READING »Getting Started with ESP-NOW (ESP32 with Arduino IDE)
In this project you’ll learn how to control your ESP32 or ESP8266 GPIOs from anywhere in the world. This can be very useful to control a relay, a thermostat, or …
CONTINUE READING »Control ESP32 and ESP8266 GPIOs from Anywhere in the World
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 …
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Build a cloud weather station dashboard to visualize your ESP32 or ESP8266 sensor readings from anywhere in the world. You’ll see your sensor data displayed on gauges and on a …
CONTINUE READING »DIY Cloud Weather Station with ESP32/ESP8266 (MySQL Database and PHP)
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 …
CONTINUE READING »ESP32 Relay Module – Control AC Appliances (Web Server)
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 …
CONTINUE READING »ESP32 LoRa Sensor Monitoring with Web Server (Long Range Communication)