Op-Amp Archives - electroSome

Interfacing Rain Sensor with Arduino

Basamma B — Thu, 15 Mar 2018 10:22:20 +0000

In this article we are going to explain about interfacing Rain Sensor with Arduino. The rain sensor module is an easy tool for rain detection. It operates as a switch when raindrop falls through the raining board and also it measures rainfall intensity. The module features, a rain sensing board and the control board that […]

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Mobile Phone Detector Circuit

Aman Deep — Sun, 16 Jul 2017 06:44:55 +0000

This is a very interesting hobby project which can detect active mobile phone or GSM communication in its proximity. Active mobile phone means there is some live communication is going on like calls, sms sending or receiving etc. This circuit can be used to prevent unauthorized use of mobile phones in examination halls, conference rooms […]

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Automatic Garden Light Controlling System

Abhay Bajpai — Tue, 25 Sep 2012 01:38:42 +0000

Just like my previous circuit using LM358 this is also very cheap,also under 100 rupees. This is a circuit for controlling the street lights,garden lights,automatically. You don’t need to turn it on and turn it off again and again, just turn on the circuit once and forget, it will automatically manage itself by sensing the available […]

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Laser Security System

Abhay Bajpai — Sun, 16 Sep 2012 05:31:39 +0000

Here is a simple and cheap Laser Based Security System, which costs below Rs. 100. It is a simple circuit using LM358 OP-AMP and LM555 Timer. This circuit is triggered when the Laser beam falls on the LDR interrupts, which sounds the buzzer connected to it. This can be used to protect your valuable items, money, […]

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