Liquid level detector

The water level controller circuit described here controls the water level inside a tank. There are two modes available with this water level controller circuit. The water level controller circuit is designed to maintain the water level within a specified...

This ultrasonic movement detector circuit utilizes a crystal-locked circuit to achieve maximum performance from the ultrasonic transmitter. The detection circuit is designed to be more sensitive. It is advisable to verify all components against the parts list. Generally, it...

Portable loads such as video cameras, halogen flood lights, electrical irons, hand drills, grinders, and cutters are powered by connecting long 2- or 3-core cables to the mains plug. Due to prolonged usage, the power cord wires are subjected...

An RF field detector circuit suitable for measuring and verifying the power of antennas and transmitters can be constructed using transistors and common electronic components. This circuit employs a radio frequency transistor, specifically a MOS-FET with two gates. The...

This is an ultra-sensitive earthquake detector circuit capable of sensing seismic vibrations. It can be utilized to detect vibrations in the Earth. The ultra-sensitive earthquake detector circuit is designed to respond to minute seismic vibrations, making it an essential tool...

In various situations, it is necessary to indicate the amount of battery charge using methods such as LED dot displays or LED bar displays. This circuit utilizes the LM3914 integrated circuit to serve as a battery charge indicator with...