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You are here: Home / Archives for LM3915 IC

LM3915 IC Datasheet, Pinout, Application Circuits

Last Updated on January 1, 2020 by Swagatam 6 Comments

If you are having difficulty in understanding how to use an LM3915 IC, this article will help you to easily construct any desired applicable circuit using this IC. Here, we […]

Filed Under: Datasheets, Electronic Components, Electronics Tutorial, LM3915 IC

Alcohol Detector Meter Circuit using MQ-3 Sensor Module

Last Updated on August 3, 2019 by Swagatam 10 Comments

MQ-3 sensor LM393 comparator circuit

An alcohol detector is a sensitive device which is able to detect the presence of alcohol molecules or any similar volatile inflammable element in the air and convert it into […]



Filed Under: LM3915 IC, Meters and Testers, Mini Projects

Wireless Music Level Indicator Circuit

Last Updated on August 9, 2019 by Swagatam 15 Comments

music light effect

A wireless music level indicator is an electronic device built for sensing the varying levels of a music signal and convert it into corresponding levels of illumination over an LED […]

Filed Under: DIY LED Projects, LM3915 IC, Mini Projects

10 LED Tachometer Circuit

Last Updated on July 15, 2019 by Swagatam 47 Comments

The post explains how an accurate 10 LED tachometer circuit can be built using ordinary parts like IC 555 and IC LM3915. The idea was requested by Mr. Munsif. What […]

Filed Under: Car and Motorcycle, LM3915 IC

Simple Tea Coffee Vending Machine Circuit

Last Updated on March 2, 2020 by Swagatam 13 Comments

A simple tea, coffee vending machine circuit idea is explained here which allows a customer to access the beverage with a press of a button and by inserting a genuine […]

Filed Under: 555 IC Circuits, Industrial Electronics, LM3915 IC, Simple Circuits

Battery Backup Time Indicator Circuit

Last Updated on July 15, 2019 by Swagatam Leave a Comment

The post explains a battery backup time indicator circuit for monitoring the battery power usage by the connected load and for estimating the approximate remaining backup time of the battery. […]

Filed Under: 324 IC Circuits, Battery Chargers, LM3915 IC



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