[chbot] daft chocolate fish contest
    hamster 
    hamster at snap.net.nz
       
    Tue Oct 21 04:12:55 BST 2014
    
    
  
 
Go old skool - a 555 with a thermistor and a pizeo buzer. Monitor
the frequency from outside. 
Just don't know how you could power it at
100 degrees C - but if it is a presure cooker then I'm thinking a potato
battery might do it.
http://www.kidzworld.com/article/4726-how-potato-batteries-work 
On
21.10.2014 16:03, William Fleete wrote: 
> Encase the whole thing in JB
weld save for the temp sensor and Barometric sensor inlet :P
> Maybe use
a Vibration motor to morse out the data and use a piezo/electrect mic to
pick up the vibrations emitted from outside 
> A suitable metal case
should keep at least the radiated heat and pressure/moisture out and
maybe give a suitable attaching point for the temp sensor and vibration
motor
 
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