Programmable Plant Watering Timer Circuit

In this post we learn about an automatic programmable 7 day plant watering system circuit as requested by Mr. Michael. Here’s the requested as given in the below paragraph Hello admin, The timing circuit must be powered with 9v and its function will be to switch on and off a 9v supply to a microcontroller […]

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Making Delay Timers using NOT gates IC 4049

The post explains how accurate delay timers using NOT gates can be built easily with the help of ICs such as IC 4049 and generate reproducible delay features from these configurations. There are several situations when a switching delay is necessary. One of the ways of accomplishing this is to utilize an RC network and […]

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Simple Dark Room Timer Circuit for Photographers

A basic dark room timer circuit for photographers works on a solitary 1.5V cell and flashes a neon light is detailed below. As the time frequency are visible, it is quite simple to record time lapsed even in darkness. Transistor Tl actuates transistor T2 instantly. Output of the A transistor pair is within phase having […]

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