[Coco] CoCo temperature monitoring

[Mark Marlette]

Bob,

Other than resolution being poor, you might want to consider scaling  
the value to a range. Better to use modern technology, thermistors are  
not.

Go with a DALLAS product or single wire, I2C interface device. Digital  
is the way of the future.... :)

Mark

Quoting theother_bob <theother_bob at yahoo.com>:

> Hey everyone,
> ISTR an old article in Hot CoCo or TCCM about using the CoCo   
> joystick inputs to read the temperature using thermistors. I haven't  
>  dug out the article yet, but I'm pretty sure I still have it.   
> Meanwhile, has anyone done this and have any practical advice about   
> how far I could run remote sensors from a CoCo joystick port?    
> Another thing I'd like to try is a remote microphone connected to   
> the Cass input which could be monitored for high/low noise levels   
> (specifically it should be able to tell if some cooling fans are   
> running at low or high speed.)
>
> In case you can't tell, I am wanting to monitor (and log)   
> temperatures in different rooms with the possibility that the CoCo   
> doing the monitoring could alert me somehow (perhaps a phone call   
> from the Speech/Sound Pak) if my server room is getting too hot. (We  
>  had an A/C failure that just cost us an $850 motherboard in an HP   
> server with 6 redundant fans. Ironically the cheap PC clones next to  
>  it handled the heat just fine!)
>
> TIA,
> Bob
>
>
>
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