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USB extender having POE on CAT-6

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(@propeller-head-nerd)
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Joined: 2 months ago
Posts: 2
Topic starter  

I've tried several approaches including purchased USB extender modules over CAT-6, but cannot find a compact means to provide power at the end opposite a computer.  I tried using AA cells, but I need this to be quite compact.  I wanted to add a POE module, but realized it might not be an implementation using standard I'net.  Adding a POE module and transformers might short out the original device.  (3+ layers on the PCB make it quite difficult to determine exactly what is happening, and some chips are not marked.)

An ideal answer seems to be an ESP-32 board having POE, or one that I can add POE to, that can handle the USB connections.  I understand that there was no USB stack written as of a year ago, but maybe there is a microcontroller that could effect this answer?


   
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Ron
 Ron
(@zander)
Father of a miniature Wookie
Joined: 3 years ago
Posts: 6512
 

@propeller-head-nerd Not sure what you are trying to do.

First computer 1959. Retired from my own computer company 2004.
Hardware - Expert in 1401, and 360, fairly knowledge in PC plus numerous MPU's and MCU's
Major Languages - Machine language, 360 Macro Assembler, Intel Assembler, PLI/1, Pascal, C plus numerous job control and scripting languages.
Sure you can learn to be a programmer, it will take the same amount of time for me to learn to be a Doctor.


   
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(@propeller-head-nerd)
Member
Joined: 2 months ago
Posts: 2
Topic starter  

@zander <==confused, I thought this was Ron.

Ultimate i want to use a USB endoscope for much more than normal USB length. (about 16 fft.).  I bought a USB extender that uses CAT-6, and that worked, even at 100 ft.  However, it needs +5 VDC at the far end(for the endoscope), and I am needing that to be quite compact.  I bought what I thought would add POE, but that exercise ended in frustration.  

Units sold for that length are QUITE expensive.  A stack of coin cells might not last very long, and would be expensive in the long run.

Add in my desire to work with the ESP-32 and this is where I land.  If this is impossible I need to grieve the time lost and move on.  Not my preference to do that.

Thanks!

P.s., It looks like there might be something on GITHUB that could be a key piece of the USB code.  


   
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Ron
 Ron
(@zander)
Father of a miniature Wookie
Joined: 3 years ago
Posts: 6512
 

@propeller-head-nerd I don't think you have told us your power requirements yet so it's pretty hard to make any recommendations. How small do the batteries have to be? There will likely be a chart on the net listing various battery chemistries and their watts per kg and/or per cc. Now with your power requirements known, we can calculate the mass and or volume and when you tell us what your mass/volume target is we can make a simple go/no go decision.

 

First computer 1959. Retired from my own computer company 2004.
Hardware - Expert in 1401, and 360, fairly knowledge in PC plus numerous MPU's and MCU's
Major Languages - Machine language, 360 Macro Assembler, Intel Assembler, PLI/1, Pascal, C plus numerous job control and scripting languages.
Sure you can learn to be a programmer, it will take the same amount of time for me to learn to be a Doctor.


   
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Ron
 Ron
(@zander)
Father of a miniature Wookie
Joined: 3 years ago
Posts: 6512
 

@propeller-head-nerd Here is my info

Screenshot 2024 02 07 at 20.27.24

First computer 1959. Retired from my own computer company 2004.
Hardware - Expert in 1401, and 360, fairly knowledge in PC plus numerous MPU's and MCU's
Major Languages - Machine language, 360 Macro Assembler, Intel Assembler, PLI/1, Pascal, C plus numerous job control and scripting languages.
Sure you can learn to be a programmer, it will take the same amount of time for me to learn to be a Doctor.


   
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