Colin,
The reason I and most other people use RTDs is because they are more
precise than a typical thermocouple or thermister. You need to do a good
bit more than an LDO and a A/D to make the reader as/more stable than
the RTD. Everything needs to be temperature compensated with careful
circuit choices to get reasonable accuracy. I'm not sure how much better
than a typical thermocouple a setup like you suggested would be.
jerry
On 08/28/2015 12:47 PM, Colin Reese wrote:
Hi All,
Anybody have use for an RTD 1Wire slave? I'm finding I could really
use one, and what's out there is too expensive, not compact and/or
modular enough. I feel as though I'm missing something.
Seems to me a MAX31865, an ATTiny85, an LDO, and a little logic level
conversion would do the trick in a tiny form factor for a pittance.
What ROM address would/could I use for this guy?
Cheers,
Colin
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