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Random Question: What is this? Background: In America, work

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Thread replies: 48
Thread images: 8

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Random Question: What is this?

Background: In America, work at a hospital. Patient had bum ankle and asked him to take off his shoe and sock. This appeared on the bed right after. Patient has no idea what it was. Search engines got me know where.

In the grand scheme of things, who cares but I love a mystery.
>>
Try /r/whatisthisthing
They'll probably actually help
>>
infrared receiver or LED maybe? can you post a picture of the backside?
>>
NFC boner detector
>>
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Other side... It's about 50-70mm each on length and width
>>
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>>51518997
Old school zombie tracker for people without smartphones.
>>
looks like an infrared receiver
>>
That is radio transmitter
What it transmits is beyond me
It might not have a battery and be useless
>>
>>51518997
thanks for the personal pic anon
>>
>>51518997
webcam
>>
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>>51519082
no they get giant watches
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>>51518997
Pic from side please. Is the middle thing half a sphere?
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>>51518997
Old school RFID?
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>>51519148
RFID seems pretty likely actually
>>
>>51518997
>patient had bum ankle and asked him to take off his shoe and sock. This appeared on the bed right after. Patient has no idea what it was.

Stop drooling and explain it in English please.
>>
>>51518997
Either an integrated circuit or a quartz crystal, but covered in protective resin.
The manufacturer doesn't want you to know what's in it.

It could possibly be a part of a bank token for e-banking.
>>
>>51519140

No side pic, sad to say. Yes it is spherical
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>>51519133
circuit is too simple to be a camera
>>
>>51519148
>>51519168
not enough antenna though, and that black bulb thing too, doesnt look like rfid at all to me
>>
>>51519181
>but covered in protective resin
yea it's obviously for security, not optics.
>>
Best idea is just to carefully remove the resin so we can see what is under it.
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>>51519189
RFID chips have an integrated antenna into he IC which is under the resin
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>>51519206
I didn't know that, even on a surface that small?
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>>51518997
goddamnit, i've seen such black half sphere's

I have no idea where tho
>>
It looks like an IR transistor (3 leads, clearly meant for soldering). Shine a light through out and see if it has a red tint.
>>
Sane person speaking here, ignore the people who claim that it is some sort of receiver or transmitter:

The black thing is simply an epoxy blob, covering a chip (this is just a very cheap way to mount a chip on a surface).
Also means that this device is mass produced.

What it does? No idea. But there is no power, so it's dead until you solder some wires on it.
(Might be some simple led-blinky-blink controller stuff)
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>>51519180

Ha for once someone wants to hear me ramble?

Work at a hospital in the ER. Patient comes in, fucked up his ankle in a work related accident. As he took off his shoe (so I could assess the damage) I noticed this on the bed. He had no idea what it was. He didn't have electronics around him and he worked at a warehouse so not a lot of small circuit boards hanging around for him to get trapped in his shoe.

The room was sans mysterious electronic bits when he came in.

After taking care of him (and having a lunch break right after) I began to wonder what this thing was. Now I turn to the A team
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OP should have googled the number on the back, it's from a car immobilizer/key, probably fell out of his patients keys or his own
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Dont know about the size but such a half sphere is seen on force sensors as well
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>>51519216
I've seen them before on an even smaller footprint
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>>51519223

I have an old breadboard around here somewhere... I'll have to check it out. Love all the answers you guys came up with. My coworkers were puzzled too
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>>51519232
I can't find that, can you post the link?
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>>51519232

I did Google and dogpile them. No soap
>>
>>51519232
how did you google that?
google gave nothing
>>
>>51519263
>>51519257
>>51519250
The link is dead but I think this is evidence enough
>>
>>51519352
that's a real estate website
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>implying it's not just an electronic key without the housing for a golf ball dispensing machine
>>
https://www.easykeys.com/Catalog/Key/Diebold/JC01-JC300/Diebold-JC03-KEY.htm
Pretty sure it's from an electronic key of some sort.
>>
>>51518997
Seems to be the old "chip on board" (COB) technique. The unpackaged naked chip is glued directly on the board, wires are bonded to pads, and a drop of resin is added to keep it all together.
https://en.wikipedia.org/wiki/Blob_top#Glop-top

Generally for direct purpose, specialized, mass produced electronics, and judging by the design, it's directly powered by a battery, with something of highly simple construction. Which really fits this >>51519232
It definitely has the look of some basic one button remote.

tl;dr: this guy broke a remote.
>>
>>51519223
RFID requires no power onboard the transmitter anon
>>
>>51518997
Probably some part that fell out of a remote control or toy or something.
>>
>>51518997
That's what they call an epoxy blob. There's a circuit inside, but it can be practically anything. Could be a radio, could be a Sega Genesis. There's not really any way to tell (actually there is, remove the epoxy with acid, and take photos of the circuit with an electron microscope, then you can figure out from the die shots what it is - but that's beyond complex).
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>>51519437
no those don't have electronics in them
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>>51518997
Thats an microprocessor
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>>51519005
>reddit
please go
>>
>>51519538
yeah, god forbid someone might actually give him a though out, well-reasoned reply.

it's just not the /g/ way.

seriously tho, eat a bag of dicks you pedantic fuck.
>>
Maybe it's led from those shoes that have shining lights?
>>
>>51519020
You have no idea how marketable that would be.
Thread posts: 48
Thread images: 8


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