The 2.25 inch TFT LCD ST7789 SPI display is a compact but powerful module, perfect for all kinds of embedded projects. Whether you are using an ESP32, Arduino, or Raspberry Pi, this screen allows you to display sharp, colorful graphics. In this article, we will take a closer look at the specifications, pinout, and how […]
2.25 inch TFT LCD ST7789 SPI Display Read More »
When you need to measure light intensity in your projects — whether it’s for smart lighting, weather stations, or battery optimization — the BH1750 is one of the easiest and most reliable sensors to use. It’s a small, inexpensive I²C module that outputs light levels directly in lux, without the need for complex calibration or
The Complete Guide to the BH1750 Digital Light Sensor Read More »
The SHT temperature and humidity sensors from Sensirion are among the most precise, reliable options out there for measuring environmental conditions. Whether you’re building a weather station, monitoring your greenhouse, or adding climate control to a smart home device, the SHT line offers features you need — with minimal fuss. In this guide, you’ll get
The Ultimate Guide to the SHT Sensor Series Read More »
Some projects never really get old. Even though I created this one quite a while ago, it is still one of the most downloaded and requested designs on my site: The Philips Hue Bridge Wall Mount. If you’re anything like me, you probably love a clean and organized setup. The Philips Hue Bridge is a
Philips Hue Bridge – Wall Mount Read More »
If you’re building smart home systems, motion detection, lighting automation, or occupancy sensors, a radar module like the HLK-LD2410 offers a lot more than a standard PIR sensor. It can detect both moving and micro-movements (breathing, sitting still, slight motion), output distance estimates, provide configurable sensitivity, etc. In this guide we’ll go through what it is, how
The Complete Guide to the HLK-LD2410 24GHz Human Presence Radar Module Read More »
Introduction After the success of my previous project – the Halloween – Jack O’ Lantern – many of you asked for something even more dynamic, with smoother flame transitions and more LED action. So here it is: Ultimate Fire Effect, a fully reworked version with improved hardware and software, driven by the tiny but mighty ATtiny85. This project
HALLOWEEN – JACK O’ LANTERN V2 Read More »
ESP32-Lifecycle-Manager (LCM) is a smart “control tower” for your ESP32 device. At startup, LCM takes charge first: it handles network setup, update management, recovery procedures, and more — so your application can focus on its actual tasks. In this post, we’ll dive into how LCM works, how to integrate it, and why it’s a great
ESP32 Lifecycle Manager: Manage Your Firmware, Provisioning and Recovery in One Package Read More »
Sometimes the biggest challenges come from the smallest details. The Nest Protect (2nd Generation) is a beautiful piece of hardware – a combined smoke and CO alarm – that comes in two versions: battery powered and 220V wired. I wanted the wired version, because I didn’t want to constantly replace batteries. But my house, built
Nest Protect (2nd Gen) – 3D Printed Ceiling Mounting Ring Read More »
RFID technology is everywhere: access cards, metro tickets, contactless payments, and smart locks. For makers, one of the easiest ways to experiment with RFID is the RC522 module. It’s a low-cost 13.56 MHz RFID reader/writer that works with tags, key fobs, and cards. In this guide we’ll explore what the RC522 is, its specifications, wiring,
The Complete Guide to the RC522 RFID Module Read More »
Not every 3D printing project needs to be about high-tech gadgets or smart home accessories. Sometimes, it’s the simplest household annoyances that inspire the most clever solutions. This project is a perfect example: a 3D printed fruit fly trap that fits right on top of an empty soda bottle. It’s a technical solution for a
Fruit Fly Trap – A Technical Solution for a Non-Technical Problem Read More »
