[PSUBS-MAILIST] Matilda - you'll never dive alone

[Pete Niedermayr]

Have you thought about adding sensors for the battery pods ? Maybe moisture and pressure.
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On Sun, 12/22/13, Jon Wallace <jonw at psubs.org> wrote:

 Subject: [PSUBS-MAILIST] Matilda - you'll never dive alone
 To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
 Date: Sunday, December 22, 2013, 3:51 PM
 
 
 Thought this might interest some of you.  With little
 effort I can incorporate some basic audible alarms into my
 environment monitoring project to notify me of off-scale
 sensor conditions.  At first I considered just sounding
 a buzzer and flashing a light next to the sensor that was
 off scale.  For just a few dollars more I can include
 mp3 playback of synthesized voice warnings for a particular
 off-scale operating condition, ie. low oxygen, high carbon
 dioxide. I edited together some aircraft warning sounds
 along with synthesized voice from an online text-to-speech
 convertor to create a small library of voice warnings I call
 "Matilda".  MP3 recordings attached.  It requires
 a bit more hardware but from a software perspective the
 program is only a few lines longer than implementing a basic
 piezo buzzer alarm.
 
 Pre-dive checklist will include testing alarms to ensure
 they are working correctly and an override button will allow
 stopping the alarm during operations so you don't have to
 listen "Matilda" all the way to the surface.  I've
 decided to use the "buzz,buzz,buzz,buzz" sound for
 informational alarms and the "whoop,whoop" sound for
 emergency alarms.  Now if only I could find
 text-to-speech translator for Yosemite Sam or Foghorn
 Leghorn to make it really unique.
 
 Jon
 
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