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Well, life is still not on a good keel. I picked up at Fry's a proto shield, and some optocouplers. So the world keeps spinning and I am using a software controlled power-supply I don't have a formal sketch but this is what it will do: Code ? setup () {      int relay[] = { pin2, pin3, pin4 };      int sscr[] = { pin5, pin6, pin7};      int lamps[] = { pin8, pin9, pin10, pin11 };      int TRUE = 1;   ...
Well, life really sucks a good friend of mine is dying and I have been out of town for the last week or so. And I am going back tomorrow. The Gorilla Brake did not work for the two smaller boxes so pop-rivets will work. The power supply is a nightmare and I will get around to that later. For the time being, I plan on using the power outputs from my beloved Dynakit Stereo 70 which has power take-off sockets on the rear 360vac-0-360vac. I will most likely use both sides of the transformer so that ...
Back to Analog Enter Your Electronics & Design Project for a chance to win a $100 Shopping Cart! Back to The Project14 homepage Project14 Home Monthly Themes Monthly Theme Poll   CVBoard is a board designed to generate two Control Voltage (CV) signals using Arduino. This prototype is destinated to analog synths and EuroRack modules enthusiast. CVBoard  has two jack outputs from which it is possible to take the CV signals, driven by Arduino’s digital ports that support P ...
kk99

LED fade in/out effect

Posted by kk99 Dec 1, 2018
Merry Boxes & LEDs Enter Your Project for a chance to win a Maker Tool Kit, an Oscilloscope Grand Prize for the project that brings the Most Joy to the Heart, and Gift to Gives! Back to The Project14 homepage Project14 Home Monthly Themes Monthly Theme Poll     The basic idea was to create a simple LED fade in/out effect circuit. I have used here a single dual op-amp NJM4556 which first stage is configured in comparator mode and second stage is configured as integrator. Tria ...