Do not want your laundry getting soaked in a surprise downpour? This article can help. We will show you how to build a simple rain alarm circuit. This circuit uses a sensor to detect raindrops and then sounds an alarm so you know to bring in the umbrellas or anything else outside. Rain detector circuits […]
Automatic Street Light Circuit using LDR
In this post we learn how to build an automatic street light circuit using LDR and relay. Introduction: Saving energy is important, so lots of places are using special street lights with LEDs that turn on by themselves! These lights sense darkness using a light sensor called an LDR, which helps save power. This article […]
Adjustable Timer Circuit using 555 IC with Buzzer
In this article, I will show you how to create a timer circuit that can be adjusted with a buzzer using the IC 555. To me a timer is like a miniature clock designed for electronics. These timers have the ability to switch things on and off at predetermined times. We come across them in […]