In this article we now try to see how we can connect a 4×4 keypad with Arduino. But first, we need to understand what exactly a keypad is, then how […]
Switching Solar Panel Regulator Circuit with Transistors
So here we are talking about a very simple, completely transistor-based solar switching buck converter circuit. What it does is, it takes an input from 40V to 60V and converts […]
Make this Solid-State Solar LED Street Light Circuit with Battery Protection
In this post we will learn how this solid-state solar charger works and how we can build it, step by step. This one is mainly for new hobbyists who are […]
Make this Simple Solar Pocket LED Light Circuit
Here we explain a really cheap and super simple solar pocket LED light circuit. This is not for fancy people, this is for poor folks, tribal people, village kids, who […]
Make this Solar Charger Circuit with Auto Cut-Off Using Only Transistors
Ok, so here we see a very simple solar charger circuit that works without any ICs. We use only transistors and it automatically cuts off when the battery is full. […]
High Power Solar LED Garden Light Circuit: Automatic ON/OFF
In this post we have a high power solar LED garden light circuit which works with a solar panel, to charge a battery during daytime and switch the LED on […]