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On 08/12/2017 12:16 PM, karl AT aspodata DOT se wrote:
> pt100-inputs

by this do you mean a Pt thermocouple?

>   chip reader (as in credit card with chip)?
How about RFID cards -- they can be bought for about 0.50 USD each in qty 50.
the programming chips are not bad either... but the antenna loops take up as much board space as
a credit card...

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