The Ware for September 2023 is shown below.
Thanks to FETguy for contributing this ware!
This entry was posted on Saturday, September 30th, 2023 at 10:01 pm and is filed under name that ware. You can follow any responses to this entry through the RSS 2.0 feed.
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Those arrows suggest that orientation matters, perhaps a tilt sensor of some sort, or a hall-effect sensor (I did find some three-wire sensor modules online that look similar). The battery size looks about that of a CR123, common in alarm/door sensors. Finally, those empty slot-shaped holes first reminded me of an RF shield’s mount points, but I’m thinking they might be attachment points for an antenna wire.
So my very-amateur guess is that it’s a door-open sensor. I’m not super-confident of the guess, there does seem to be a lot of “guts” (an ARM-core processor, lots of resistors and caps spread around) compared to the sensors i have laying around, though they’re all reed-switch.
No idea what I’m looking at. Two thoughts:
The dark-grey plastic part reminds me of a battery connector, but it’s missing obvious spring contacts. There also seems to be a small vertical daughter board on its right.
The silk screen and component spacing has a bit of a KiCad vibe.
With the fan, my guess is some kind of laser PM2.5 dust sensor. Can’t find one with that layout though, so can’t tell beyond that.
I think you’re right. Looks like Honeywell HPMA115S0-XXX
Ben’s right- the black square with the arrows is definitely a fan, plus it has the three-wire tachometer connection.
It looks like the exact model is a Honeywell HPMA115S0-XXX- the screw holes line up, the laser sensor configuration looks about right, and the pinout looks good as well. Even the corner chamfers on the plastic case look about right. The fan’s got different colored wires compared to the datasheet photo.