Introduction Some time ago I came across a website where I saw a novel way of showing the disk activity of a computer. I liked the idea very much and decided to make one on my own. Since the working of the circuit is explained in detail and very well …
Introduction Definition (from Wikipedia): A rotary encoder, is an electro-mechanical device that converts the angular position of a shaft or axle to an analog or digital code. I have been playing with a device like this for some time and thought I’d share what I learnt. I am not going …
We have a timer in our staircase that controls the light after dark: when someone presses a button (a button is located on each floor) the lights light up for a preset period. Lately, the timer in our staircase light has started to behave weirdly – no matter what settings …
Introduction The aim of this simple project is to provide simple button input to any digital circuit. I use it in conjunction with the LED strip in microcontroller projects on breadboards. It consists of 8 tactile switches (momentary pushbuttons). The circuit is complete with a pull-up resistor for each pushbutton. …
Introduction The aim of this simple project is to provide simple debugging capabilities to any digital circuit. It is nothing more than 8 LEDs on a piece of PCB with a pin header to connect easily to a test board or breadboard. The circuit The circuit doesn’t get any simpler …
