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 …
CONTINUE READING »ESP32 MQTT – Publish BME280 Sensor Readings (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 …
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)
ESP32 development boards with camera are becoming popular with the maker community. There are different models of ESP32 Camera boards with different features. Each ESP32 Camera dev board uses different …
CONTINUE READING »ESP32-CAM Camera Boards: Pin and GPIOs Assignment Guide
The ESP32-CAM comes with an on-board Wi-Fi antenna, but it also has an IPEX connector if you want to use an external antenna. Using an external antenna can solve problems …
CONTINUE READING »ESP32-CAM Connect External Antenna (Extend Wi-Fi Coverage)
The ESP32-CAM is a development board with an ESP32-S chip, an OV2640 camera, microSD card slot and several GPIOs to connect peripherals. In this guide, we’ll take a look at …
CONTINUE READING »ESP32-CAM AI-Thinker Pinout Guide: GPIOs Usage Explained
This guide shows how to change the ESP32-CAM OV2640 camera settings such as contrast, brightness, resolution, quality, saturation and more using Arduino IDE. The instructions in this tutorial work for …
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)
The ESP32-CAM AI-Thinker development board can be programmed using Arduino IDE. This guide shows how to program and upload code to the ESP32-CAM (AI-Thinker) development board using Arduino IDE. The …
CONTINUE READING »How to Program / Upload Code to ESP32-CAM AI-Thinker (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)