A liquid level sensor is a device which is used for detecting the level of a given liquid inside a container through an electrical conduction across a given set of […]
Metal Detector Circuit using Single Transistor – Tutorial
The post explains a simple one transistor metal detector circuit which is very sensitive and and can detect any metal from a significant distance. We are going to begin the […]
Find Concealed Metal Pipes, Nails, Studs using this Circuit
In this article we learn how to construct 3 useful circuits which can help us to detect and locate metal pipes, nails, studs concealed or hidden under walls or ground. […]
Automatic Darkness Activated Porch Light Circuit
The post explains a simple dark triggered porch light or corridor light circuit using a single IC 741 and few other passive components. This arrangement enables you to automatically switch […]
Proximity Detector Circuit – LC Tuned IC CS209
The post details an LC tuned proximity detector circuit, using a LC tank circuits and the IC CS209A This is a straightforward proximity switch circuit using IC CS209. The CS209A […]
Metal Detector Circuit using a Single IC
In this post we learn how to make a simplest metal detector circuit using a single CMOS IC 40106 Simple metal detector circuit The metal detection circuit displayed here might […]