https://github.com/natronics/blinky-lights

My first 555 project, also an example board for psu-epl
https://github.com/natronics/blinky-lights

Last synced: about 2 months ago
JSON representation

My first 555 project, also an example board for psu-epl

• Host: GitHub
• URL: https://github.com/natronics/blinky-lights
• Owner: natronics
• Created: 2013-03-05T21:34:58.000Z (almost 12 years ago)
• Default Branch: master
• Last Pushed: 2013-03-11T01:08:29.000Z (almost 12 years ago)
• Last Synced: 2024-04-16T18:09:29.647Z (9 months ago)
• Size: 523 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

        
# blinky-lights

My first 555 project, also an example board for [psu-epl](http://psu-epl.github.com/).

It's a small PCB with a [555 timer](http://en.wikipedia.org/wiki/555_timer_IC)

that drives the clock of a shift register/LED driver IC to make a bunch of

LEDs blink in a turn.

CAD files are made with the a free copy of [EAGLE](http://www.cadsoftusa.com/) version 6.3.0.

## Schematic

![preview of schematic](https://raw.github.com/natronics/blinky-lights/master/schematic.png)

## Layout

![preview of board](https://raw.github.com/natronics/blinky-lights/master/board.png)

## BOM

 - 1x 555 Timer

 - 1x Allegro A6278EA LED Driver IC

 - 2x 10 μF Capacitor

 - 1x 0.01 μF Capacitor

 - 2x 1k Ω Resistor

 - 1x 4k Ω Resistor

 - 1x 500 Ω Resistor

 - 1x 10 Ω Resistor

 - 1x N Channel MOSFET (TO-92)

 - 8x 3mm LEDs

 - 1x Spare USB cable

# Build Log

## 2013-04-10

Good working breadboard. Schematic and board layout (should) match what is working on my bench.