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What is this cable/device?


Cannot light up the LED on breadboard2.5mm Jack to USB data CableLED lamp increased power consumption after installation: Why?Some help with 9V Longlife VARTA batteries?LED lamps keep glowing when dimmer is turned offNoise (capacitance-related?) in serial signalSimple voltage/wattage/resistor question about night lightArduino getting a bit of power after disconnecting supplyReqForHelp: Understanding Vf relationship to supplied V and ANeoPixel led WS2812B shines the right color only every 2nd time













1












$begingroup$


I hope I'm on the appropriate site.



Does anyone know what this thing is?



It has a mini mono plug.
The white square is slippery..but it is not covering double-sided tape.
A white LED did not light up when I plugged it into a mic input on my PC.
I thought there were little holes and it might be a mic but they are small indentations, not holes.



Thanks!



enter image description here



enter image description here










share|improve this question







New contributor




Steve Wellens is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.







$endgroup$











  • $begingroup$
    Could be anything, but maybe a piezo mic?
    $endgroup$
    – Wesley Lee
    6 hours ago










  • $begingroup$
    When I plugged it into a PC I tried to record with it...but nothing. And why the LED?
    $endgroup$
    – Steve Wellens
    6 hours ago






  • 2




    $begingroup$
    I've seen similar things before used to put remote photodiodes on a remote-operated device. I have one on an HDMI splitter and it uses the same connector. I can't say for sure, but I'm guessing the LED is a photodiode (or an LED being used as a photodiode) and this is meant to be plugged into one very specific device and nothing else. A picture showing the "LED" might be a good idea, by the way.
    $endgroup$
    – Hearth
    6 hours ago











  • $begingroup$
    The bottom picture includes the LED. Maybe I should have angled the shot.
    $endgroup$
    – Steve Wellens
    5 hours ago















1












$begingroup$


I hope I'm on the appropriate site.



Does anyone know what this thing is?



It has a mini mono plug.
The white square is slippery..but it is not covering double-sided tape.
A white LED did not light up when I plugged it into a mic input on my PC.
I thought there were little holes and it might be a mic but they are small indentations, not holes.



Thanks!



enter image description here



enter image description here










share|improve this question







New contributor




Steve Wellens is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.







$endgroup$











  • $begingroup$
    Could be anything, but maybe a piezo mic?
    $endgroup$
    – Wesley Lee
    6 hours ago










  • $begingroup$
    When I plugged it into a PC I tried to record with it...but nothing. And why the LED?
    $endgroup$
    – Steve Wellens
    6 hours ago






  • 2




    $begingroup$
    I've seen similar things before used to put remote photodiodes on a remote-operated device. I have one on an HDMI splitter and it uses the same connector. I can't say for sure, but I'm guessing the LED is a photodiode (or an LED being used as a photodiode) and this is meant to be plugged into one very specific device and nothing else. A picture showing the "LED" might be a good idea, by the way.
    $endgroup$
    – Hearth
    6 hours ago











  • $begingroup$
    The bottom picture includes the LED. Maybe I should have angled the shot.
    $endgroup$
    – Steve Wellens
    5 hours ago













1












1








1





$begingroup$


I hope I'm on the appropriate site.



Does anyone know what this thing is?



It has a mini mono plug.
The white square is slippery..but it is not covering double-sided tape.
A white LED did not light up when I plugged it into a mic input on my PC.
I thought there were little holes and it might be a mic but they are small indentations, not holes.



Thanks!



enter image description here



enter image description here










share|improve this question







New contributor




Steve Wellens is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.







$endgroup$




I hope I'm on the appropriate site.



Does anyone know what this thing is?



It has a mini mono plug.
The white square is slippery..but it is not covering double-sided tape.
A white LED did not light up when I plugged it into a mic input on my PC.
I thought there were little holes and it might be a mic but they are small indentations, not holes.



Thanks!



enter image description here



enter image description here







led cables plug






share|improve this question







New contributor




Steve Wellens is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question







New contributor




Steve Wellens is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question






New contributor




Steve Wellens is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked 6 hours ago









Steve WellensSteve Wellens

1083




1083




New contributor




Steve Wellens is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





Steve Wellens is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Steve Wellens is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











  • $begingroup$
    Could be anything, but maybe a piezo mic?
    $endgroup$
    – Wesley Lee
    6 hours ago










  • $begingroup$
    When I plugged it into a PC I tried to record with it...but nothing. And why the LED?
    $endgroup$
    – Steve Wellens
    6 hours ago






  • 2




    $begingroup$
    I've seen similar things before used to put remote photodiodes on a remote-operated device. I have one on an HDMI splitter and it uses the same connector. I can't say for sure, but I'm guessing the LED is a photodiode (or an LED being used as a photodiode) and this is meant to be plugged into one very specific device and nothing else. A picture showing the "LED" might be a good idea, by the way.
    $endgroup$
    – Hearth
    6 hours ago











  • $begingroup$
    The bottom picture includes the LED. Maybe I should have angled the shot.
    $endgroup$
    – Steve Wellens
    5 hours ago
















  • $begingroup$
    Could be anything, but maybe a piezo mic?
    $endgroup$
    – Wesley Lee
    6 hours ago










  • $begingroup$
    When I plugged it into a PC I tried to record with it...but nothing. And why the LED?
    $endgroup$
    – Steve Wellens
    6 hours ago






  • 2




    $begingroup$
    I've seen similar things before used to put remote photodiodes on a remote-operated device. I have one on an HDMI splitter and it uses the same connector. I can't say for sure, but I'm guessing the LED is a photodiode (or an LED being used as a photodiode) and this is meant to be plugged into one very specific device and nothing else. A picture showing the "LED" might be a good idea, by the way.
    $endgroup$
    – Hearth
    6 hours ago











  • $begingroup$
    The bottom picture includes the LED. Maybe I should have angled the shot.
    $endgroup$
    – Steve Wellens
    5 hours ago















$begingroup$
Could be anything, but maybe a piezo mic?
$endgroup$
– Wesley Lee
6 hours ago




$begingroup$
Could be anything, but maybe a piezo mic?
$endgroup$
– Wesley Lee
6 hours ago












$begingroup$
When I plugged it into a PC I tried to record with it...but nothing. And why the LED?
$endgroup$
– Steve Wellens
6 hours ago




$begingroup$
When I plugged it into a PC I tried to record with it...but nothing. And why the LED?
$endgroup$
– Steve Wellens
6 hours ago




2




2




$begingroup$
I've seen similar things before used to put remote photodiodes on a remote-operated device. I have one on an HDMI splitter and it uses the same connector. I can't say for sure, but I'm guessing the LED is a photodiode (or an LED being used as a photodiode) and this is meant to be plugged into one very specific device and nothing else. A picture showing the "LED" might be a good idea, by the way.
$endgroup$
– Hearth
6 hours ago





$begingroup$
I've seen similar things before used to put remote photodiodes on a remote-operated device. I have one on an HDMI splitter and it uses the same connector. I can't say for sure, but I'm guessing the LED is a photodiode (or an LED being used as a photodiode) and this is meant to be plugged into one very specific device and nothing else. A picture showing the "LED" might be a good idea, by the way.
$endgroup$
– Hearth
6 hours ago













$begingroup$
The bottom picture includes the LED. Maybe I should have angled the shot.
$endgroup$
– Steve Wellens
5 hours ago




$begingroup$
The bottom picture includes the LED. Maybe I should have angled the shot.
$endgroup$
– Steve Wellens
5 hours ago










1 Answer
1






active

oldest

votes


















4












$begingroup$

That's an infrared transmitter for extenders or control systems. That plastic chunk with the IR LED gets glued on a device like TV or Blu-Ray player so that it shines on the device's IR receiver.






share|improve this answer









$endgroup$












  • $begingroup$
    Thanks! I guess I can throw it in my junk cables box.
    $endgroup$
    – Steve Wellens
    5 hours ago










Your Answer





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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









4












$begingroup$

That's an infrared transmitter for extenders or control systems. That plastic chunk with the IR LED gets glued on a device like TV or Blu-Ray player so that it shines on the device's IR receiver.






share|improve this answer









$endgroup$












  • $begingroup$
    Thanks! I guess I can throw it in my junk cables box.
    $endgroup$
    – Steve Wellens
    5 hours ago















4












$begingroup$

That's an infrared transmitter for extenders or control systems. That plastic chunk with the IR LED gets glued on a device like TV or Blu-Ray player so that it shines on the device's IR receiver.






share|improve this answer









$endgroup$












  • $begingroup$
    Thanks! I guess I can throw it in my junk cables box.
    $endgroup$
    – Steve Wellens
    5 hours ago













4












4








4





$begingroup$

That's an infrared transmitter for extenders or control systems. That plastic chunk with the IR LED gets glued on a device like TV or Blu-Ray player so that it shines on the device's IR receiver.






share|improve this answer









$endgroup$



That's an infrared transmitter for extenders or control systems. That plastic chunk with the IR LED gets glued on a device like TV or Blu-Ray player so that it shines on the device's IR receiver.







share|improve this answer












share|improve this answer



share|improve this answer










answered 6 hours ago









JustmeJustme

1,8921411




1,8921411











  • $begingroup$
    Thanks! I guess I can throw it in my junk cables box.
    $endgroup$
    – Steve Wellens
    5 hours ago
















  • $begingroup$
    Thanks! I guess I can throw it in my junk cables box.
    $endgroup$
    – Steve Wellens
    5 hours ago















$begingroup$
Thanks! I guess I can throw it in my junk cables box.
$endgroup$
– Steve Wellens
5 hours ago




$begingroup$
Thanks! I guess I can throw it in my junk cables box.
$endgroup$
– Steve Wellens
5 hours ago










Steve Wellens is a new contributor. Be nice, and check out our Code of Conduct.









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Steve Wellens is a new contributor. Be nice, and check out our Code of Conduct.












Steve Wellens is a new contributor. Be nice, and check out our Code of Conduct.











Steve Wellens is a new contributor. Be nice, and check out our Code of Conduct.














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