LEDs or Light Emitting Diodes are really cool devices that shine light when electricity passes through them. They are a big part of the tech world and show how semiconductors work. The latest versions of LEDs are much brighter and use a lot less energy. This has changed how we design and build circuits that […]
Simple Transistors Based Megaphone Circuit
A simple circuit that uses transistors to make a megaphone acts like an electronic amplifier. It is designed to boost weak sounds from a microphone MIC so they can be loud enough to be heard through a loudspeaker. You can find this kind of circuit in many places, like public speaking events, sports games, rallies […]
Simple Adjustable Thermostat Circuit using IC LM56
An electronic adjustable thermostat is an important part of controlling temperature and its often used in systems that heat or cool spaces. This specific circuit uses IC LM56, which is a low power chip that can switch temperatures on and off in two different ways. It helps control external transistors that manage the systems output […]
Simple 555 Timer Based Animal Repeller Circuit
A simple electronic device called the 555 Timer Based Animal Repeller Circuit has been cleverly designed to keep animals away from certain areas. This device works by producing a high pitched sound that many animals find uncomfortable but humans usually can not hear it. The main part of this device is the IC 555 timer […]
Timer Based Mosquito Repeller Power Saver Circuit
Mosquito repellers have become really popular for keeping those annoying bugs away. They work by using either ultrasonic sounds or chemical sprays. However, these devices can use a lot of electricity when they are always running, which is not always needed. To solve this problem a Timer Based Mosquito Repeller Power Saver Circuit has been […]
Simple LED Alert for Telephone Off-Hook Detection Circuit
This LED Alert for Telephone Off-Hook Detection Circuit is designed to show when a phone line is in use by lighting up an LED. It works by sensing a change in voltage on the phone line when the handset is picked up which means the line is off-hook. This circuit can easily be used with […]