https://github.com/krypten/zetta-buzzer-raspberrypi-driver

https://github.com/krypten/zetta-buzzer-raspberrypi-driver

Last synced: 6 days ago
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• Host: GitHub
• URL: https://github.com/krypten/zetta-buzzer-raspberrypi-driver
• Owner: krypten
• Created: 2015-04-03T03:08:28.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2015-04-03T07:50:30.000Z (over 9 years ago)
• Last Synced: 2024-04-16T08:46:14.218Z (7 months ago)
• Language: JavaScript
• Size: 2.46 MB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
##Control an Piezo Buzzer using Zetta and Raspberry Pi

###Install [Currently won't work as project is not published]

```

$> npm install zetta-buzzer-raspberrypi-driver

```

###Usage

```

var zetta = require('zetta');

var Buzzer = require('zetta-buzzer-raspberrypi-driver');

zetta()

  .use(Buzzer, 17)

  .listen(1337)

```

### Hardware

* [Piezo Speaker](https://www.sparkfun.com/products/7950)

###Transitions

#####turn-on

No arguments. Turns on the buzzer continuously at 500Hz.

This signal conforms to Swedish Standard SS 03 17 11, No. 4 "All clear"

#####turn-on-pulse

No arguments. Alternately turn the buzzer on at 500Hz for 150 ms then off for 100ms.

The signal conforms to Swedish Standard SS 03 17 11, No. 1 "Imminent Danger".

#####turn-on-alternating

No arguments. Alternately turns on the buzzer at 560Hz for 100 ms then off for 400ms.

The signal conforms to "French fire sound" NF S 32-001-1975.

#####turn-off

No arguments. Turns off the beeping.

#####beep

No arguments. Beeps the buzzer once.

###Design

The sound designs in the buzzer driver follow international standards. Confer with list of alarm sound tones from [Siemens](http://www.buildingtechnologies.siemens.com/bt/global/en/firesafety/fire-detection/cerberus-pro-fire-safety-system/peripherals/alarm-equipment/pages/alarm-sounds.aspx).