Hook an ESP32 to your Local Area Network using Ethernet – this guide shows you how. We’ll Build a simple Web Server, and a PoE Camera that powers itself from an Ethernet cable.
Ethernet has a lot of advantages over WiFi, this article wil show you how to maximize your ESP32’s network performance.
Today we are taking a look at an operating system for the ESP32 – yes, an operating system for a microcontroller!
MicroPythonOS is an Android-like operating system for the ESP32. Today I’ll show you how to install it, use it, and build your own apps for it.
Here it is, the 2026 ESP32 Selection Guide! In this article you’ll learn about the (eleven) different variants of the ESP32 and how to select the best one for your application.
We’ll also look at some popular ESP32 boards to help you make the correct choice
Rotary Encoders are so useful, but they can be hard to work with. Enter the Adafruit I2C Seesaw Rotary Encoder! This encoder uses an I2C bus, making interfacing it with a microcontroller very simple.
We will learn how the encoder works, then we’ll use it to build a Menu System and a fun toy – an Etch-a-Sketch!
Today we wil examine the exciting new Seeeduino XIAO ESP32-C5 board, the first XIAO board that supports 5 GHz Wi-Fi!
We wil see how the board works,and how to use it for communications and in low-power mode. We wil also build a Dual-Channel WiFi Analyzer with a Liquid Crystal Display!
Come meet the XIAO family! Today we wil take a look at all of the members of the Seeeduino XIAO microcontroller family. And there are over a dozen of them!
We wil check out their specs and then create three very different projects that use the same circuit (but different XIAO boards).
Learn to setup and use WLED, the amazing ESP32-based product for controlling every type of LED strip. We will see how WLED works, how to choose LED strip lights and how to safely wire everything up.
We wil also hookup a microphone and use Audio Reactive, to control our LEDs with sound.
Today we are working with the TMP117, a precision temperature sensor with an accuracy within 0.1 degrees Celsius.
We’ll see how this sensor, on a module from Adafruit, can be easily connected to a microcontroller to build a super-accurate thermometer. We’ll even put together a WiFi thermometer with an OLED display.
Table of Contents1 Introduction2 Carbon Dioxide2.1 Measuring CO₂ vs. eCO₂3 ENS160 (with AHT21)3.1 ENS160 Pinout3.2 ENS160 Hookup3.3 ENS160 Code4 SCD41 CO₂ Sensor4.1 SCD41 Pinout4.2 SCD41 Hookup4.3 SCD41 Code5 Using Multiple Sensors5.1 Multiple Sensor Hookup5.2 Multiple Sensor Code6 Conclusion6.1 Parts List6.2
Table of Contents1 Introduction2 The I²C Bus3 ESP32 I²C Basics3.1 ESP32 I²C Implementation3.2 ESP32-C6 DevKit3.3 ESP32 I²C Demo Hookup3.4 ESP32 I²C Demo – Basic Wire Code for AHT203.5 ESP32 I²C Demo – AHT20 with OLED Display4 Multiple I²C Buses 4.1 ESP32 I²C Multiple Bus Demo Hookup4.2