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ledstoplight's Introduction

ledstoplight

An LED stoplight alarm for my Raspberry Pi. This is a node.js application that controls two LEDs wired up on my Raspberry Pi by turning them on or off at a configured time. See circuit diagram below for how I wired everything up.

NPM Dependencies

  • onoff - Used to control GPIO outputs
  • commander - Used to faciliate the command-line interface

Circuit Diagram

Here is my circuit diagram that's required for running ledstoplight.

Usage

Thanks to commander, you can see how to use ledstoplight from the command-line using the --help argument.

$ ./ledstoplight.js --help

  Usage: ledstoplight [options]

  LED stoplight. <time> must be in the local 24-hour format HH:MM.

  Options:

    -h, --help             output usage information
    -r, --red-on <time>    The time the red LED should turn on. Defaults to: 19:00
    -g, --green-on <time>  The time the green LED should turn on (and also turn off red LED). Defaults to: 23:00
    -o, --all-off <time>   The time all LEDs should be turned off. Defaults to: 08:00
    -i, --interval <n>     Check every <n> seconds to see if an LED should turn on. Defaults to: 30

ledstoplight's People

Contributors

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Watchers

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