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 […]
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Ultraviolet (UV) Sanitizer Circuit for Disinfecting Home Materials
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 […]
Car Door Close Optimizer Circuit
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 […]
Safety Buoy Switch Circuit for Human Powered Submarine
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 […]
IC 4040 Datasheet, Pinout, Application
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. […]
Lamp Outage Detector Circuit for Car Turn Signal
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 […]