NeoPixels (WS2812B) – Complete Guide

NeoPixels are individually addressable RGB LEDs that need just one data pin to control hundreds of LEDs, each with its own 24-bit color. NeoPixel is Adafruit’s brand name for LEDs based on the WS2812B and its successors — but whatever name they’re sold under, they all speak the same single-wire protocol. Combined with the ESP32-C6 SUPER MINI (which even has […]

CD74HC4067 16-Channel Analog Multiplexer – Complete Guide

The CD74HC4067 16-channel analog multiplexer module solves the opposite problem of an I/O expander: instead of adding digital pins, it lets you read 16 analog signals through a single ADC pin. The module is based on the CD74HC4067 from Texas Instruments and is one of the cheapest and simplest ways to connect a whole array of sensors, potentiometers or buttons to a […]

MCP23017 16-Bit I/O Expander – Complete Guide

The MCP23017 16-bit I/O expander module is one of the easiest ways to add extra GPIO pins to your ESP32 project. The module is based on the MCP23017 from Microchip and gives you 16 additional, fully configurable I/O pins over a simple two-wire I²C bus. Running out of pins on a compact board like the ESP32-C6 SUPER MINI? This is the […]

ESP32 – Lifecycle Manager V2.0

A slow, friendly, step-by-step introduction to OTA updates trough Lifecycle Manager on the ESP32. I get quite a lot of messages and questions from people who want to “try OTA updates”, but who get stuck almost immediately. Not because they’re doing something wrong, but because most tutorials quietly assume you already understand things like: If […]

esp32 – HomeKit Bathroom Ventilation Controller

When we renovated our bathroom, a new ventilation unit was installed — including a wireless remote control. Sounds convenient. In reality… not so much. The remote was constantly misplaced, forgotten, or — even worse — the battery was empty again. And surprisingly fast. That meant the ventilation was either running unnecessarily or not running when […]

ESP32 – Power Plug with Energy Meter

For many years, the Dutch retailer Action has sold affordable smart‑home devices under the LSC Smart Connect brand. These products are extremely popular due to their low price point, but internally the hardware is often far more capable than expected. Earlier generations frequently used ESP8266 modules, which made reflashing and custom firmware relatively easy. Newer hardware revisions, however, increasingly rely […]

esp32 – smart connect plug

For years, the Dutch retailer Action has offered affordable smart-home devices under the brand LSC Smart Connect. These products are extremely popular because of their low price—but under the hood, they often use hardware that is surprisingly capable. In earlier generations, many LSC products were based on ESP8266 chips that could easily be reprogrammed. However, newer revisions increasingly […]

ESP32 WiFi Bootstrap: Simple Wi-Fi Provisioning with HomeKit Integration

Configuring Wi-Fi on an ESP32 can be challenging—especially if you want the device to work across different networks without re-flashing the firmware each time. Fortunately, the ESP32 WiFi Bootstrap project offers an elegant solution. In this blog post, we’ll explore how this project works, how to integrate it into your own ESP32 projects, and how the HomeKit […]

HOMEKIT LED – WITH ESP32 WROOM 32E

The ESP32 WROOM 32E is a versatile, powerful microcontroller ideal for smart LED projects. Want to control an LED using Apple’s Home app or Siri? No additional hub required! Just a compact board, a simple LED, and a USB cable. With my ESP32 HomeKit demo, you’ll have it running smoothly in no time. This guide […]

THE ESP-WROOM-32 PROGRAMMER

Streamlined development for one of the most powerful microcontrollers in the maker world. Whether you’re prototyping with the ESP32, flashing firmware, or debugging your next IoT creation, this adapter turns a tangle of wires and frustration into a seamless plug-and-play experience. In this guide, you’ll discover why this is a must-have tool for any serious […]