555 Timer Contest | Hackaday.io

74 projects

555 Timer as a PWM controller for a buck converter

COT Buck Converter with LM555

kai-yin Kai Yin

This project uses a 555 timer and a few op amps to convert voltage to frequency with emphasis on data measurement

555 Timer Voltage to Frequency For Measurement

allthingsoneplace

In this tutorial I am going to create 3 chaser circuits using Arduino and IC4017 decade counter.

LED Chaser Circuits Using IC4017 and Arduino

The 555 as circuit sculpture.

CS 555

AC/DC power converter built using historic componets by Tesla Rožnov. Controlled by 555. Input 230V AC, output 7V, 10A.

555-controlled Switching Mode Power Supply

A Christmas tree decoration with red and green LEDs blinking

LED Christmas Tree Decoration

This circuit allows for customized speed of turbo/autofire for any video game controller.

Video Game Controller Turbo/autofire circuit

Doing SPI with a microcontroller is boring. Why not do it with dozens of logic chips and 555 instead?

MCU-Less DS1302 Calendar Clock

sleepy-pony Sleepy Pony

I took a new look at an old circuit and found a simple solution to a problem described in every 555 datasheet

555 monostable mode revisited

Hackaday Prize 2020

Saw someone selling a two tone buzzer on Aliexpress for $10. Immediately my brain said, are you serious?

Two Tone Doorbell Using IC 555

Official Hackaday Prize Entry

Fixed-rate Asynchronous Receiver. Extremely simple asynchronous serial input to parallel data output converter.

FAR

Look ma! no computer! How about a 555 ADC* that outputs 230kbaud serial ascii !!

555 based serial ADC

rue-mohr Rue Mohr

All Logic Gates & 2-bit Ripple Carry Adder built with only TLC556 Timer ICs. Proof of concept blocks for 555 based Turing Machine/uP

555 Timer Functional Complete Logic Gates

lornechrones-nick LorneChrones (Nick)

In order to display the function of NE555, I made an object that can replace two resistors and a diode.

Spot the NE555!

I've made a PCB that represents the front of the Audi e-tron

Audi e-tron with 555

Honey Bee shaped 555 Blinky course ware for Maker's Asylum Electronics course.

MAP6 Maker Bee

anool-mahidharia Anool Mahidharia

A simple cable tester using a 555 as the heart of the system

Cable Test RJ45 / RJ12

This is what happens when an electronics instructor mentioned that he needed a better way to show his students how the 555 works

NE555 Training Breakout Board

Musical instrument without batteries!, created with the motor of a PC CD player and a piano generated with the incredible 555

Acordeonador

This project animates a '62 Rambler speedometer using 555 timers to emulate a car taking a short ride.

The Sprit of the '62 Rambler Nixie Clock

Create music from the invisible changes occurring within plants, using a 555 timer!

Biodata Sonification v05

samuelcusumano samuel.cusumano

road stud using NE555 timer, the idea is to have a road stud that has to lights, one green to show that the driver is in the right direction

Road stud based on 555 timer

nait-malek-youssef Nait Malek Youssef

Enhanced ESP-01 WiFi relay/SSR/opto module & 555 emulator.

WiFive55

TechColab.co.je

We know the Terminator’s main CPU is a 6502, but recently revealed that it is clocked by rad-hardend redundant 555 timer.

Terminator’s 6502 Clocked By 555 Timer

ted-fried Ted Fried