Hi, Phil,
I don't think you will find a complete solution on a chip. You should
implement temperature measurement system on your own with comparator,
programmable by eg DS2408.
Best Regards,
Ivan, PhD
On Thu, Oct 27, 2011 at 9:55 AM, Phil White <[email protected]> wrote:
> Hi All,
>
> Could someone suggest/recommend a suitable temperature sensor or point
> me to a circuit schematic for a temp sensor?
> *HOWEVER*, it must have a separate 'alarm' pin, or means to achieve this.
>
> To clarify - a standard DS1820 will sense temp, and will internally
> know that current conditions are outside a pre-set range. However, all
> it can do is communicate that info back to the 1-wire master.
>
> What I need is for a relay to automatically trigger (or, even better,
> for 1 of 2 relays to trigger depending on Hi/Lo) *WITHOUT* any
> commands or communication over the 1-wire network. 1-wire would be
> used simply to program the device in the first place.
>
> Any ideas?
>
> Many thanks
>
> Phil
>
>
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