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Simple 5 LED Music Level Indicator using a single IC

Last Updated on November 27, 2024 by Admin Leave a Comment

IC

In this post we learn how to make a decorative LED music level indicator or music activated LED lights using a single IC and we also learn the main datasheet […]

Filed Under: Indicators, Lights and Lamps Tagged With: Indicator, LED, Level, Music, Simple, Single

3 State Battery Charge Indicator Circuit

Last Updated on July 1, 2020 by Admin 2 Comments

battery

This posts tells you how to make a simple 3 state battery charge level indicator circuit 3 LEDs and a couple of opamps Circuit Description To find out the condition […]

Filed Under: Indicators Tagged With: Battery, Charge, Indicator, State

Wireless Lamp using an RF Disturbance Circuit

Last Updated on June 5, 2025 by Admin Leave a Comment

bast73

In this post we learn how to illuminate a small DC lamp remotely through RF disturbances created by switching a battery, motor circuit some 4 meters away. This distance can […]

Filed Under: Remote Control Tagged With: Disturbance, Lamp, RF, Wireless

Vibration Activated Alarm Circuit

Last Updated on November 17, 2024 by Admin Leave a Comment

NOISE

The noise or vibration activated alarm circuit displayed in this article makes use of its pre-installed loudspeaker like a microphone while it is within the sland- by-state.   How the […]

Filed Under: Security and Alarm Circuit Tagged With: Activated, Alarm, Vibration

Automatic Heatsink Fan Cooler using Arduino

Last Updated on June 6, 2025 by Admin Leave a Comment

LM

The assignment below automatically feels the enveloping temperature and automatically adjusts the cooling fan speed in order to maintain a given heatsink’s temperature within the stipulated safe limits. This automatic […]

Filed Under: Arduino Tagged With: Arduino, Automatic, Cooler, Fan, Heatsink

Simple Sinewave Inverter Circuits

Last Updated on July 13, 2021 by Admin 20 Comments

inv1

Looking for simple sinewave inverter circuits, which can be customized as per your specific needs? The following ideas may help you to achieve your objectives A sinewave inverter is a device that converts […]

Filed Under: Inverter Circuits Tagged With: Circuits, Inverter, Simple, Sinewave

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