https://github.com/glynnbird/flasher

Raspberry Pi LED flashing utility
https://github.com/glynnbird/flasher

Last synced: 5 days ago
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Raspberry Pi LED flashing utility

• Host: GitHub
• URL: https://github.com/glynnbird/flasher
• Owner: glynnbird
• Created: 2015-02-04T10:47:41.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2015-02-09T16:23:18.000Z (almost 10 years ago)
• Last Synced: 2024-10-12T22:13:10.143Z (about 1 month ago)
• Language: JavaScript
• Size: 137 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Flasher

A simple Raspberry Pi LED flashing utility. Pipe text data into it and it will flash an LED

## Electronics

You'll need an LED and a resistor

    Pin 11 (GPIO17/GEN0) ---> LED ---> 330 ohm Resistor ---> Pin 6 (GND)

## Usage

    # flash once

    echo "Flash" | sudo node flasher.js

    

    # flash every time a line is added to /var/log/messages

    tail -f /var/log/messages | sudo node flasher.js

        

    # flash every time traffic arrives on port 80

    sudo tcpdump -i eth0 'tcp port 80' | sudo node flasher.js 

## Optional parameters

* pin - the number of the GPIO pin to flash (default 11)

* ms - the number of milliseconds to flash for (default 50)

* usage - print the usage information

e.g.

    tail -f /var/log/messages | sudo node flasher.js --pin 11 --ms 100