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 […]
NeoPixels (WS2812B) – Complete Guide Read More »
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
CD74HC4067 16-Channel Analog Multiplexer – Complete Guide Read More »
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
MCP23017 16-Bit I/O Expander – Complete Guide Read More »
The ESP32-C6 Super Mini is one of the most advanced microcontroller boards available today. Designed for performance, efficiency, and next-generation connectivity, it powers everything from smart home devices to cutting-edge IoT systems. Whether you’re a hobbyist or a professional developer, the ESP32-C6 gives you everything you need to build smarter, faster, and more efficiently. What is the
The Ultimate Guide to the ESP32-C6 SUPER MINI Pinout Read More »
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 – Lifecycle Manager V2.0 Read More »
The CC1101 868MHz SPI RF module is a compact, low-power sub-GHz transceiver widely used in IoT, industrial telemetry, home automation and custom RF networks. The module is based on the CC1101 from Texas Instruments and offers significantly more flexibility than simple ASK/OOK transmitter modules. In this complete guide we cover: What is the CC1101? The CC1101 is a programmable sub-GHz RF
CC1101 868MHz SPI RF Module – Complete Guide Read More »
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 – HomeKit Bathroom Ventilation Controller Read More »
Some projects just keep coming back. My original Philips Hue Bridge Wall Mount has been one of the most downloaded designs on my site for years, and honestly… I totally get why. It’s one of those “small fix, big improvement” kind of projects. But this time, it was time for an update. A New Upgrade: Hue Bridge
Philips Hue Bridge Pro – Wall Mount Read More »
The JL-AD3W-HT-V3 is a compact AC-to-DC power supply module commonly found in low-cost embedded electronics, IoT devices, and DIY projects. It converts mains voltage directly into a regulated low-voltage DC output, typically 5 V, making it a popular alternative to bulky wall adapters or external power bricks. This article covers the JL-AD3W-HT-V3 as a hardware component: what it is, how it
JL-AD3W-HT-V3 – Everything You Need to Know About This AC-DC Power Supply Module Read More »
For the hobby developer who wants full control over their smart hardware, the Aubess Power Monitor Switch is an excellent starting point. It is an inexpensive Wi-Fi power switch with built-in energy monitoring, solid hardware, and a compact design. Under the hood, however, the device uses a closed Wi-Fi module based on a ESP-02S (or
ESP32 – Mini Smart Switch with monitor Read More »
