The 555 timer does “one thing”– compares a voltage to a couple limits and outputs a signal accordingly. When Hackaday runs a 555 Timer Contest, hackers of all stripes come out with their best work to reveal their love for the Little DIP That Could.
One of the strangest hacks, hands-down, is the Accordeonator. Seven buttons link up timing resistors to the 555, which makes the music.
Ends up that you can make a 4 MHz radio transmitter out of just two LMC555s. (Theyre the fast ones.) Certainly, the circuits only semiconductors are the two 555s. One creates the provider frequency, and the other simply inverts the signal. The two of them in tandem kind a push-pull amplifier, for “optimum” power. 4 MHz with a 555 oscillator isnt bad!
All three of these projects win a $150 shopping spree at Digi-Key. Thats a great deal of timers!
The Menorah555 is an easy design with some really nice tricks up its sleeve. Perhaps the prettiest of which is pulling the main candle light out and lighting the others with it– a technique that includes a supercapacitor and reed switches. Each of the candle light lighting circuits, nevertheless, use a 555 timer both for its desired purpose of offering a timed power-on reset pulse, and another 555 is utilized as a simple flip-flop. Its a slick design, and a fantastic user interaction.
This one looks great, is exceptionally well documented in the video series, and utilizes a billion creative little tricks along the method. The 555s function?
Far and away the favorite entry was the Giant 555 Timer by [Rudraksha Vegad] Every one of our judges ranked it in the top five, and it took top honors twice. On its face, this is a basic “giant 555 in a box” build, however take a look under the hood. Each sub-module that makes up the 555– comparators, flip-flop, and amplifier– are made from restored discrete parts in real breadboard style, soldered to brass nails inculcated wood. As a final product, its a good piece of woodworking, but as a process of creation, its a masterwork in understanding the 555 at its deepest level. We should all make one!
You had one job– blink an LED with the 555. What can we state? The LEDs blink with 555s, and the board looks snazzy.
Should not Have Used a 555
You probably should not use 555s as stepper motor chauffeurs, or as counters, in this leaping-frog LED sculpture. You wouldnt bit-bang the DMX512 serial procedure or make a serial ADC with a 555?
This category didnt dissatisfy, and were not amazed. Inform Hackaday readers what they cant do, and theyll do it!
Art for Arts Sake
… and More
Kudos to all entrants in the contest! You ought to actually take a while to browse all of the entries, and not just those that resonated most with us. Because who understands, you may simply discover yourself stranded on a desert island, with just a dog crate of 555s on hand, and require to rebuild modern-day society.
We truthfully didnt know that we needed an honorable mention classification for making your own 20-pin 555-timer based silicon, however apparently we did. Blinking a bunch of LEDs, naturally. We d like to see more information about this task in the future.
Our judges truly liked CS 555, a completely circuit-sculpture discrete 555, and the Spirit of the 62 Rambler Nixie Clock which stimulates an old cars dash as if driven by a ghostly force. Naturally its a 555.
Thanks again to our sponsor Digi-Key for the prizes and the assistance!
The 555 timer does “one thing”– compares a voltage to a couple limits and outputs a signal appropriately. When Hackaday runs a 555 Timer Contest, hackers of all stripes come out with their finest work to show their love for the Little DIP That Could.
Each sub-module that makes up the 555– comparators, flip-flop, and amplifier– are made from salvaged discrete parts in actual breadboard fashion, soldered to brass nails hammered into wood. Each of the candle lighting circuits, however, utilize a 555 timer both for its designated function of providing a timed power-on reset pulse, and another 555 is used as a basic flip-flop. You had one job– blink an LED with the 555.