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Dealing with mice and rats can be a persistent challenge for homeowners and businesses alike. Fortunately, you can create an effective DIY mouse and rat repellent using a 555 timer IC and a few basic electronic components. This ultrasonic repellent emits high-frequency sound waves that deter rodents without harming them or your pets. In this … Read more
Are you looking to enhance your home automation skills or create a DIY security solution? A motion detection light switch using a PIR (Passive Infrared) sensor is an excellent project for beginners and experienced electronics enthusiasts alike. This guide walks you through the process of building your motion-activated light switch, complete with a detailed circuit … Read more
If you’ve ever needed a portable power solution during an outage, a 100 watt inverter is a fantastic project to tackle. This device converts 12V DC from a battery into 100W AC power, perfect for running small appliances like a 100-watt bulb. As an experienced electronics engineer, I’ll walk you through a hand-drawn circuit diagram, … Read more
In today’s world, having a reliable cell phone charger is essential, and building your own can be a fun and educational project. This article explores a hand-drawn circuit diagram for a DIY cell phone charger that converts 220V AC to a stable 5V DC output. As an experienced electronics engineer, I’ll break down the components, … Read more
If you’re passionate about audio electronics, building a MOSFET Class A amplifier can be a rewarding project. Known for its simplicity and excellent sound quality, a Class A amplifier operates with high linearity, making it a favorite among audiophiles. In this article, we’ll analyze a hand-drawn circuit diagram of a MOSFET Class A amplifier, break … Read more
Are you an electronics enthusiast looking to test Zener diodes with precision? A Zener diode tester is an essential tool for verifying the breakdown voltage of Zener diodes, ensuring your circuits perform optimally. In this detailed guide, we’ll walk you through building your own Zener diode tester using simple components. Perfect for hobbyists and professionals … Read more
Are you looking for an efficient way to monitor water levels in your tank? A water level indicator circuit is a simple yet effective solution that can save you time and prevent overflow or dry run scenarios. In this comprehensive guide, we’ll walk you through the process of building a water level indicator using basic … Read more
For hobbyists, DIY enthusiasts, and professional electronics engineers, maintaining the right temperature on a soldering iron is crucial for successful soldering projects. A soldering iron temperature controller allows you to adjust and stabilize the heat, preventing damage to sensitive components. In this article, we’ll explore a simple yet effective soldering iron temperature controller circuit, inspired … Read more
If you’re looking for an efficient and reliable way to charge your 12V battery while ensuring it doesn’t overcharge, a 12V battery charger with an auto cut-off circuit is the perfect solution. This simple yet effective circuit design automatically disconnects the charger once the battery reaches its full capacity, protecting it from damage and extending … Read more
Are you tired of pesky mosquitoes and insects invading your home? Building a DIY Mosquito/Insect Killer circuit is a practical and cost-effective solution to keep your space bug-free. This project, inspired by the design from A2aelectronics, uses a high-voltage grid and UV lamp to attract and eliminate insects. In this detailed guide, we’ll break down … Read more