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3.5mm headphone jack 3p/4p temperature sensor standard?
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Topic: 3.5mm headphone jack 3p/4p temperature sensor standard? (Read 846 times)
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mairo
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3.5mm headphone jack 3p/4p temperature sensor standard?
«
on:
June 03, 2020, 05:06:23 pm »
Hi all,
Is there a standard for the pin-out of a 3.5mm headphone jack 3p/4p when used with temperature sensor, particularly in the power wiring? Mainly 1-Wire based digital sensors, but if there is something for analog ones (e.g. MCP9700 based ..), I am also interested to know.
The only information I found was from iTead on some Sonoff probes:
https://www.itead.cc/wiki/Sonoff_Sensor_Si7021
and some tread in which the circuitry for the power seems flipped when compared to the one from iTead/Sonoff tread above:
http://rants.dyer.com.hk/rpi/1wire.html
Thank you
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aix
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Re: 3.5mm headphone jack 3p/4p temperature sensor standard?
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Reply #1 on:
June 04, 2020, 06:17:19 am »
It looks like the first link uses a 2.5mm, not a 3.5mm, connector.
I've seen meat cooking probes also use a 2.5mm connector for the thermistor, but I'm guessing that's not the type of temperature sensor you're after.
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3.5mm headphone jack 3p/4p temperature sensor standard?
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