On Thu, Oct 27, 2011 at 06:08, <
[email protected]> wrote:
>
> > 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
i think that lm75 is a analog temperature sensor, maybe with some amp
ops you could make a schimitt trigger alarm with potentiometers to
adjust hi and low temp
2011/10/27 Vincent Danjean :
> Le 27/10/2011 10:17, Phil White a écrit :
>> Hi Paul,
>>
>> Yes, I know of this product. I have emailed the
Le 27/10/2011 10:17, Phil White a écrit :
> Hi Paul,
>
> Yes, I know of this product. I have emailed them for clarification on
> a couple of points (it appears that you cannot adjust the hysteresis),
> but essentially this is the sort of product I need... except that it
> is a room temperature sens
Hi Phil,
On 10/27/2011 09:08 AM, Phil White wrote:
> Change that - it appears that a PRT (or RTD) might be the way forward,
> rather than a thermocouple.
If "I don't want to get my hands dirty doing a little bit of
programming/wiring" is *not* a requirement then would a
microcontroller-based d
Change that - it appears that a PRT (or RTD) might be the way forward,
rather than a thermocouple.
On 27 October 2011 13:17, Phil White wrote:
> Hi Paul,
>
> Yes, I know of this product. I have emailed them for clarification on
> a couple of points (it appears that you cannot adjust the hysteresi
Hi Paul,
Yes, I know of this product. I have emailed them for clarification on
a couple of points (it appears that you cannot adjust the hysteresis),
but essentially this is the sort of product I need... except that it
is a room temperature sensor, and I need to measure water temp. I
certainly int
Embedded Data Systems has exactly that in their "Environmental Sensors"
(which is tested and supported by owfs).
http://owfs.org/index.php?page=eds-enviromental-sensors
Different models also can sense humidity, pressure and light.
2011/10/27 Patryk
> Dnia 27-10-2011 o 09:55:38 Phil White
> na
Dnia 27-10-2011 o 09:55:38 Phil White napisał(a):
> 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 th
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 wrote:
> Hi All,
>
> Could someone suggest/
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 ar
10 matches
Mail list logo
