Question A way to measure voltage via Serial connection

Dec 5, 2023
2
0
10
Hello,

I am currently trying to find a way to measure DC voltage across a device(s) to read via a serial RJ-45.
I use an opengear OM2224 serial monitor to remotely serial connect into some devices at various sites.

Edit: My relay racks are equipped with a -48VDC configuration but when measured range up to roughly -52VDC.

What I'm trying to do:​

Somehow read a voltage of a device (i.e. router, switch, etc.) by using a serial RJ-45 connection. I've seen things like DATAQ, but they require an OS to export the measured data. I'm capable of doing a Serial RJ-45 connection or a Serial USB connection, per the OM2224 specs.

Things I have considered:​

  • using an Arduino or ESP32, since some are built with an on-board analog-to-digital convertor (ADC).
  • DATAQ (but requires an OS to export data or a USB stick to save to, unfortunately I cannot remotely access it.)

Skillset:​

I do have a good formality with:
  • ESP32s
  • Coding (any language)
  • FPGAs
  • Circuits
  • Power
I have my degree surrounding this area, but my schooling didn't provide a learning experience surrounding something like this.

I am open to any ideas, please share your thoughts with me.
 
Last edited:

kanewolf

Titan
Moderator
Hello,

I am currently trying to find a way to measure DC voltage across a device(s) to read via a serial RJ-45.
I use an opengear OM2224 serial monitor to remotely serial connect into some devices at various sites.

Edit: My relay racks are equipped with a -48VDC configuration but when measured range up to roughly -52VDC.

What I'm trying to do:​

Somehow read a voltage of a device (i.e. router, switch, etc.) by using a serial RJ-45 connection. I've seen things like DATAQ, but they require an OS to export the measured data. I'm capable of doing a Serial RJ-45 connection or a Serial USB connection, per the OM2224 specs.

Things I have considered:​

  • using an Arduino or ESP32, since some are built with an on-board analog-to-digital convertor (ADC).
  • DATAQ (but requires an OS to export data or a USB stick to save to, unfortunately I cannot remotely access it.)

Skillset:​

I do have a good formality with:
  • ESP32s
  • Coding (any language)
  • FPGAs
  • Circuits
  • Power
I have my degree surrounding this area, but my schooling didn't provide a learning experience surrounding something like this.

I am open to any ideas, please share your thoughts with me.
Personally, I would recommend something like this -- https://www.tindie.com/products/fero_ke/tcpip-voltmeter-relay/
Ethernet is usually more flexible than serial.