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
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-CAM Camera Boards: Pin and GPIOs Assignment Guide
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 …
ESP32-CAM Connect External Antenna (Extend Wi-Fi Coverage)
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 …
ESP32-CAM AI-Thinker Pinout Guide: GPIOs Usage Explained
The ESP32-CAM is a development board with an ESP32-S chip, an OV2640 camera, a microSD card slot, and several GPIOs to connect peripherals. In this guide, we’ll take a look …
Change ESP32-CAM OV2640 Camera Settings: Brightness, Resolution, Quality, Contrast, and More
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 …
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 …
How to Program / Upload Code to ESP32-CAM AI-Thinker (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 …
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 …
TTGO T-Journal ESP32 Camera: Built-in Programmer, OLED, Antenna and Project Examples
This is a getting started guide for the TTGO T-Journal ESP32 Camera Development Board. The TTGO T-Journal features an OV2640 camera, an OLED display, several GPIOs to connect peripherals and …
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 …