[chbot] daft chocolate fish contest

[Mark Atherton]

Shame there aren't any large temperature differences available from 
within the vessel - rules out a thermopile.

Potato or Lemon battery. Not sure how they behave at temperature.

I do like the simplicity of your solution, but was hoping for a bit 
more accuracy.

CR2025 cells only go up to 60C

ENERGIZER E91 AA cell goes to 55C

Li/SOCl2 runs up to 150C. I must pop over to New World and buy a couple...





At 04:12 p.m. 21/10/2014, you wrote:

>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