Capacitor power supplies or transformerless power supplies are small but effective power supplies for small appliances like sensor boards, microcontroller boards, etc. This type of power supply is small in size, light in weight, and low in cost. Which can replace its counterpart of transformer-based power supply. Circuit diagram of Read more
One of the very useful transformerless power supplies using Viper12A IC can be used in many applications. It is sufficient to run micro-controllers, sensors, displays, relays, and so on. With very few numbers of components, we can get a reliable transformerless power supply with Viper12A. ***Warning: An electrocution hazard exists Read more
Data Logger is a device that records data periodically with time and date which can be used in the analysis of the system. In this article, we’ll make a solar data logger. We will use Arduino UNO for this project. A memory card, Real-Time Clock (RTC) will be used too. Read more
A wattmeter is an useful meter to us. We can measure the power of the load with a wattmeter. You can buy this expensive meter but did you know that you can make one for yourself? In this article, we are going to learn how to make an AC Wattmeter Read more
