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“Device is a photo flash trigger that responds to sound, beam interruption, it works as a timer and controller for (drop) valves control. I have been doing photography of all kinds for many years and I like to experiment. 10 …
“Create amazingly long delays using this super low power 555 timer This year the world famous 555 timer IC celebrates its 50th anniversary! A lot of things have happened with IC’s since then but the 555 timer IC still …
“Im planning to add some power tools to the underside of my workbench so I can make a table router for example. The tools will mount from the underside on some sort of a removable plate so they can be …
“Most remote controls for your TV, cable box, Blu-ray player or other consumer electronic devices use infrared signals. IR is also an inexpensive and effective way to control a variety of maker projects. IR is especially useful in creating assistive …
“Hello guys! In this instructable, I will show you how to build an H Bridge - a simple electronic circuit which enables us to apply voltage to load in either direction. It is commonly used in robotics application to control DC …
“Now here is the a H-Bridge motor driver that is made of transistors and can be controlled by an arduino,it is capable of changing the direction of the motor but not the speed…..”
Today we will build a circuit that uses an LED in a curious way - to detect brightness. We all know that LEDs have a certain color but some of these LEDs can also detect light. Obviously they do not have …
Today will be presented a circuit to test bipolar PNP and NPN transistors . It is a circuit based on the 555. This circuit lets you check the type of transistor we have and if it is working properly or not …
“Quite some time ago, Sophi gave me a common-anode RGB LED panel and told me to make something of it. In a spate of desk-clearing, I hammered out a quick-and-dirty multiplexed display from found materials: 2N2907 transistors as row source …
Building of two circuits that flash alternately to two LEDs at a fixed cadence. These are very basic circuits and they show two ways of building circuits using transistors BJT PNP and NPN. These are classic circuits that use the …