Anyway played with infrared temperature modules?
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Anyway played with infrared temperature modules? I have one I tore out of a cheap infrared temperature-gun, but the 4 pins are labeled S+, P+, P-, S-
Every single IR sensor I can find that looks anything like this is I²C, which this clearly isn't. Anyone have a datasheet for anything like this?
@foone temperature driven keyboard incoming?
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@foone temperature driven keyboard incoming?
@ozone89 wasn't my plan, but it's an tempting idea
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Anyway played with infrared temperature modules? I have one I tore out of a cheap infrared temperature-gun, but the 4 pins are labeled S+, P+, P-, S-
Every single IR sensor I can find that looks anything like this is I²C, which this clearly isn't. Anyone have a datasheet for anything like this?
@foone power and sense Kelvin connection? Is it a photoresistor?
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@ozone89 wasn't my plan, but it's an tempting idea
@foone OhNo
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Anyway played with infrared temperature modules? I have one I tore out of a cheap infrared temperature-gun, but the 4 pins are labeled S+, P+, P-, S-
Every single IR sensor I can find that looks anything like this is I²C, which this clearly isn't. Anyone have a datasheet for anything like this?
All I can tell from beeping it is that S- is ground
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All I can tell from beeping it is that S- is ground
which also doesn't match the pinout of these when you get them in module form, since all of those I've seen go VCC,GND,SDA,SCL
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Anyway played with infrared temperature modules? I have one I tore out of a cheap infrared temperature-gun, but the 4 pins are labeled S+, P+, P-, S-
Every single IR sensor I can find that looks anything like this is I²C, which this clearly isn't. Anyone have a datasheet for anything like this?
@foone thats an analog PIR sensor, it's sort of like a whetstone bridge but made out of photodiodes (to crudely simplify)
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All I can tell from beeping it is that S- is ground
@foone measure resistance between S+ and S- and see if it reacts to temperature
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@foone power and sense Kelvin connection? Is it a photoresistor?
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@ozone89 wasn't my plan, but it's an tempting idea
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@foone thats an analog PIR sensor, it's sort of like a whetstone bridge but made out of photodiodes (to crudely simplify)
@foone i think this is power+- and JFET+- but not sure
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Anyway played with infrared temperature modules? I have one I tore out of a cheap infrared temperature-gun, but the 4 pins are labeled S+, P+, P-, S-
Every single IR sensor I can find that looks anything like this is I²C, which this clearly isn't. Anyone have a datasheet for anything like this?
@foone@digipres.club something like this? it's a thermistor and thermopile in the same package behind an IR filter, S+/S- could be the thermistor and P+/P- could be the thermopile https://www.digikey.com/en/products/detail/amphenol-advanced-sensors/ZTP-115/446799
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@foone i think this is power+- and JFET+- but not sure
@whitequark @foone I wonder. Could you connect it to something like a HX711? Given it’s tuned for bridges.
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Anyway played with infrared temperature modules? I have one I tore out of a cheap infrared temperature-gun, but the 4 pins are labeled S+, P+, P-, S-
Every single IR sensor I can find that looks anything like this is I²C, which this clearly isn't. Anyone have a datasheet for anything like this?
@foone 4-wire RS-485?
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Anyway played with infrared temperature modules? I have one I tore out of a cheap infrared temperature-gun, but the 4 pins are labeled S+, P+, P-, S-
Every single IR sensor I can find that looks anything like this is I²C, which this clearly isn't. Anyone have a datasheet for anything like this?
@foone got a bag of wacky assorted ones like this at surplus, some of them are built like this
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@whitequark @foone I wonder. Could you connect it to something like a HX711? Given it’s tuned for bridges.
@petrillic @foone no (the "crudely" part is there for good reason)
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@petrillic @foone no (the "crudely" part is there for good reason)
@petrillic @foone but it should have a logic level compatible output i think
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@foone thats an analog PIR sensor, it's sort of like a whetstone bridge but made out of photodiodes (to crudely simplify)
@whitequark thanks!
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which also doesn't match the pinout of these when you get them in module form, since all of those I've seen go VCC,GND,SDA,SCL
✧✦Catherine✦✧ (@whitequark@treehouse.systems)
@foone@digipres.club thats an analog PIR sensor, it's sort of like a whetstone bridge but made out of photodiodes (to crudely simplify)
Treehouse Mastodon (social.treehouse.systems)
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✧✦Catherine✦✧ (@whitequark@treehouse.systems)
@foone@digipres.club thats an analog PIR sensor, it's sort of like a whetstone bridge but made out of photodiodes (to crudely simplify)
Treehouse Mastodon (social.treehouse.systems)
I was gonna say that "the reverse is weird, because they labeled it different: +d and -d instead of +p and -p!
then I realized I'm an idiot who needs her caffeine
