Showing posts with label LED. Show all posts
Showing posts with label LED. Show all posts

Tuesday, October 19, 2021

8 LED Random Flasher

The name says it all. Just another cool way of controlling LEDs for various projects. Someone could take this a step further and make a random sequencer. 

Wiggler (slow)

Same circuit as the regular "Wiggler" but with modified components/values to allow for slower speeds. Not much else to be said that hasn't already been mentioned in the original post.



Wiggler

A phase shift oscillator, courtesy of the Magnavibe. While it's not as powerful or as sophisticated as the Tremulus Lune oscillator, it's a much easier build and provides the needed controls to drive a lot of LDR circuits. "Depth" controls the brightness of the LED, whilst "Speed" controls the rate between fading on and off. I've also made another version of this circuit that allows for much slower speeds and will post it separately. At one point I made a "compact" layout of this circuit but it wasn't that much smaller and looked a little untidy, but if space is a concern you could shave off a couple rows and columns if you wanted.



Thursday, October 7, 2021

The Super Simple Sight Of Sound Circuit

A Robert Henry/Dead Astronaut design, the schematic can be found by searching for "sound 2 light" on various platforms. It does exactly what it says it does, turns your sound into visible light via LEDs. When building stripboard circuits you'll inevitably have some small bits of leftover stripboard laying about that aren't good for much else, put them to use with this little guy. The LEDs react and intensify in direct correlation to your playing. This allegedly works best with super bright LEDs and placed after an overdrive or distortion circuit.



Monday, October 4, 2021

Police Light Simulator(USA)

Using 2 of the famous 555 timing IC and some charge/discharge capacitor action we get this cool flashing light circuit. Of course you can use whatever color LEDs you'd like and arrange them in any pattern you choose, so limiting this to just 'Police Light' is my fault for giving it such a title. I used this circuit on a cop/police/fuzz pedal I made as the indicator LED. Circuit could also be made with a single 556 IC.



Wednesday, September 29, 2021

10x LED Chaser/Follower

The name/title says it all. Circuit is a typical LED chaser circuit comprised of 10 LEDs. Another design lifted from one of the pages of Forrest Mims many books. I used this exact circuit to indicate the speed of a pt2399 delay using a stacked 100K potentiometer. One level of the pot controlled the speed of the actual delay circuit, while the other level of the pot simultaneously controlled the speed of the LED chaser. The times didn't exactly line up but it's really close and the idea/effect is really cool. This also isn't too far from how one would go about making a sequencer or 'music box'. 



Wednesday, September 22, 2021

Traffic Signal Simulator

Circuit runs three LEDs in a common traffic light pattern. Green(go) light will illuminate for a period of time, then a brief illumination of the yellow(caution) light, followed by the red(stop) light with an almost equal rate of illumination as the green. 



Piggyback Pair

Germanium transistors are becoming more and more scarce and the ones that you do find aren't great options for the classic fuzz circuits...