Everything You Need to Know About the LD33V

Voltage regulators are essential in almost every electronics setup because they provide stable power, protect sensitive components, and prevent unpredictable behavior. Among them, the LD33V is one of the most commonly used linear regulators for generating a clean 3.3 V supply. Rather than requiring complex circuitry, it offers a simple and robust solution that works reliably in countless […]

2.25 inch TFT LCD ST7789 SPI Display

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 […]

HALLOWEEN – JACK O’ LANTERN V2

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 […]

GUIDE TO THE RAINDROP DETECTION MODULE (MH-RD)

Whether you’re building an automated greenhouse, a smart irrigation system, or simply want to detect the first drops of rain on your weather station — the Raindrop Detection Module (MH-RD) is your go-to sensor. In this guide, you’ll learn everything about this sensor, its pinout, applications, and how to use it in real-world IoT projects. […]

THE HC-05 BLUETOOTH MODULE PINOUT

The HC-05 Bluetooth module is one of the most widely used serial communication modules for microcontroller-based projects. Designed for versatility, it supports both master and slave modes, making it a reliable and flexible choice for wireless communication. Whether you’re building a remote control, a wireless sensor network, or a Bluetooth interface for your Arduino, the […]