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Simple Automatic Plant Watering Circuit for Monitoring Soil Moisture

Last Updated on January 2, 2024 by Swagatam 167 Comments

automatic plant water irrigation circuit

This automatic plant watering circuit can be used for automatically sensing soil humidity and triggering a water pump when the ground gets parched below a predetermined level (adjustable). Circuit Operation The circuit is rather straightforward and uses a single IC 555 as the main active component.Referring to the automatic plant irrigation circuit shown below we […]

Filed Under: Water Controller Tagged With: Automatic, Monitoring, Plant, Simple, Soil, Watering

Ultraviolet (UV) Sanitizer Circuit for Disinfecting Home Materials

Last Updated on January 8, 2024 by Swagatam 51 Comments

cell phone sanitizer circuit

In this post I have explained the making of a simple, cheap yet effective ultraviolet or UV-C home sanitizer circuit using ultra violet rays or UV-C. The idea was requested by Mr. Shah (kristin). Using UV Rays against Coronavirus The UV-C sanitizer circuit I have explained below can be effectively applied for sanitizing all external […]

Filed Under: Health related Projects Tagged With: Disinfecting, Home, Materials, Sanitizer, Ultraviolet, UV

Car Door Close Optimizer Circuit

Last Updated on January 1, 2019 by Swagatam 18 Comments

In this post I have explained and tries to solve a common car door opening issue which may be seen in quite a few old model cars. The proposed circuit of a car door close optimizer was requested by Mr. Mark Rothwell. Technical Specifications Just stumbled across your site, hope you can help/advise me?I have […]

Filed Under: Automobile Electronics Tagged With: Close, Door, Optimizer

Safety Buoy Switch Circuit for Human Powered Submarine

Last Updated on July 6, 2019 by Swagatam Leave a Comment

divers safety buoy switch circuit

In this post I have explained a safety mechanism circuit which can be used in human powered submarines for safeguarding the diver during emergency situations. The idea was requested by Mr. Marielle. Technical Specifications  For a (voluntary) project of the TU Delft in the Netherlands, we are building a human powered submarine. In this submarine we need a […]

Filed Under: Water Controller Tagged With: Buoy, Human, Powered, Safety, Submarine, Switch

IC 4040 Datasheet, Pinout, Application

Last Updated on March 1, 2023 by Swagatam 5 Comments

4040 pinout diagram

The IC 4040 is technically a 12-stage binary ripple counter chip, in simple words a device which will produce a calculated delayed frequency output in response to every pulse applied at its clock input. This delay is incremented at the rate of 2n where n is the pinout order in the sequence of its outputs. […]

Filed Under: Datasheets and Components Tagged With: 4040, Application, Datasheet, Pinout

Lamp Outage Detector Circuit for Car Turn Signal

Last Updated on January 8, 2024 by Swagatam 2 Comments

Flasherwithmalfunctionindicator

The O.E.M. turn signal flashing units installed in automobiles have two  basic functions i.e. Flasher and Lamp outage detection. These flashers  are usually built with an 8-pin IC like U2044B, U6432B etc. which are  specifically made for automotive flashers. Designed and Written By Abu-Hafss Circuit Operation These flashers normally oscillate at about 1.4Hz. When a […]

Filed Under: Automobile Electronics Tagged With: Detector, Lamp, Outage, Signal, Turn

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