Sensors and Detectors

A powerful metal detector circuit typically features high sensitivity and the ability to detect a wide range of metal types at varying depths. The coil is a crucial component of the metal detector. A large coil can detect objects at greater depths, but smaller coils provide better sensitivity to small objects. Interchangeable coils are ideal […]

This is a basic circuit for a gold detector! It uses magnets and electricity to see if there is a metal nearby, even gold. The circuit makes a special kind of electricity that flows back and forth really fast. This creates a magnetic field around a coil. When any metal gets close, the electricity flow […]

LEDs are usually used to make light, but did you know they can also sense it? It is like a secret superpower, when light hits an LED in a special way, it actually creates a tiny bit of electricity. This is called the photovoltaic effect, like a mini solar panel. In a light detector circuit, […]

Forget the button, this circuit uses a clever chip called the TTP223 to sense your touch. Just like magic, touching a special pad can turn things on or off. It is a simple way to create a touch sensitive switch for projects or even pranks. Circuit Working: Parts List: Component Description Quantity Wattage Resistors 1/4 […]

An automatic soap dispenser is like a robot for soap. It has a special plan i.e circuit made of electric parts. These parts include sensors like little eyes, a brain microcontroller and a pump like tiny muscles. When the sensor sees your hand, the brain tells the pump to squirt out just the right amount […]

This is a special electronic helper! It can sense when someone wets the bed or diaper and then rings an alarm like a doorbell. This way, parents or caretakers will know right away and can help. This can be useful for children who wet the bed at night, or for people who need extra help […]