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2 Simple Proximity Sensor Circuits

In this post we learn how to design your own simple yet useful proximity detector circuits using a single opamp LM351 and a couple of infrared diodes. Two concepts are explained here, the first one using an ordinary opamp, while the second one using IC LM567 which works with a phase locked loop principle ensuring … Read more2 Simple Proximity Sensor Circuits

Make this Line Follower Robot for Science Fair Project

In this post we learn how to build a line follower robot vehicle circuit using Arduino, which will run over a specifically drawn line layout and will faithfully follow it as long as it is available and traceable by its sensors. By Navneet Sajwan What is a Line Follower Robot An autonomous robot is a machine … Read moreMake this Line Follower Robot for Science Fair Project

How to Connect an IR Photodiode Sensor in a Circuit

In this post we learn how to correctly connect an IR photodiode in circuits such as a proximity sensor circuit. The explanation is presented in the form a discussion between one of the dedicated readers of this blog NVD, and me. Here’s the discussion which explains how to connect a photodiode in an electronic circuit. … Read moreHow to Connect an IR Photodiode Sensor in a Circuit

Contactless Sensors – Infrared, Temperarture/Humidity, Capacitive, Light

The article discusses a few highly advanced contactles sensors such as infrared sensor, temperature sensor, humidity sensor, light sensor which can be used for crucial and sensitive industrial applications, and manufacturing plants. Texas Instruments (TI) introduced the growth of its industry-leading sensing integrated circuits with the inclusion of 4 innovative products that may empower technical … Read moreContactless Sensors – Infrared, Temperarture/Humidity, Capacitive, Light

Intruder Position Indicator Security Circuit

The post explains an LED based intruder position indicator circuit which will indicate the position of the burglar throughout the secured corridor as the person tries to sneak past the area.The idea was requested by Mr. Michael. Circuit Objectives and Requirements Your articles are nice, well done. sir can this, close and open door security … Read moreIntruder Position Indicator Security Circuit

Make this Touch free Faucet Circuit for Hands-free Tap Control

A very simple touch free faucet circuit or touch free tap circuit can be built using as little as an IC 555 and a few passive components, in order to implement a contact less water supply operation from the attached facet or the tap. Drinking Water is Precious Pure drinking water which we normally get … Read moreMake this Touch free Faucet Circuit for Hands-free Tap Control

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