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You are here: Home / Archives for Decorative Lighting (Diwali, Christmas)

Switching Two Alternate Loads ON/OFF with IC 555

Last Updated on July 6, 2019 by Swagatam 36 Comments

In this post we learn how to make a simple IC 555 based alternate relay timer circuit for toggling a couple of loads alternately with a specified length of delay, […]

Filed Under: 555 IC Circuits, Decorative Lighting (Diwali, Christmas), Timer and Delay Relay

Fish Aquarium Oxygen Generator Circuit

Last Updated on February 26, 2021 by Swagatam 53 Comments

In this article we discuss how to make a simple fish aquarium oxygen generator circuit using the concept of electrolysis of water. Generating Pure Oxygen The production of oxygen through […]



Filed Under: Decorative Lighting (Diwali, Christmas), Fish Aquarium

220V Dual Alternate Lamp Flasher Circuit

Last Updated on June 18, 2022 by Swagatam 13 Comments

This is a mains operated transformerless flasher circuit that can be used for alternately switching a couple of CFL or similar 220V/120V lamp to produce a decorative lighting effect. Circuit […]

Filed Under: Decorative Lighting (Diwali, Christmas)

Arduino Random RGB Light Generator Circuit

Last Updated on September 5, 2019 by Swagatam

The  article discusses a simple,Arduino red, green, blue LED light effect generator circuit in a random pattern. In one of the earlier posts we came across a similar RGB LED […]

Filed Under: Arduino Engineering Projects, Decorative Lighting (Diwali, Christmas), LED and Light Effect

Arduino RGB Flowing Sequential Light Circuit

Last Updated on June 1, 2019 by Swagatam

This Arduino RGB sequential light generator circuit will generate a smooth flowing red, green blue pattern over the connected RGB LED. The LED used here is a four pin 30mA […]

Filed Under: Arduino Engineering Projects, Decorative Lighting (Diwali, Christmas)

Remote Controlled Fish Feeder Circuit – Solenoid Controlled

Last Updated on April 24, 2022 by Swagatam 27 Comments

In this design a solenoid is operated using an IR remote control, which in turn toggles the fish feeder mechanism. In this article we learn how to make a simple […]

Filed Under: Decorative Lighting (Diwali, Christmas), Fish Aquarium, Infrared (IR), Remote Control



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