Author Topic: STM32 based DAQ board  (Read 885 times)

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Offline apolloyo2liwTopic starter

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STM32 based DAQ board
« on: June 17, 2026, 10:38:40 am »
Hello,

I'm using an STM32WB5MM_DK board and a chinesse  ADC module with ADS8688 for a DAQ board prototype. Everything willl be mounted on a perfboard for testin phase. I just want a second opinnion about the schematic. Everything will be powered from 24V.  Are there any dangerous omissions before first power-up? Any concern about grounding with a single copper plane under perfboard? Thank you.

« Last Edit: June 17, 2026, 10:41:48 am by apolloyo2liw »
 

Offline jwet

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Re: STM32 based DAQ board
« Reply #1 on: June 18, 2026, 09:51:09 pm »
The only thing that I see as a problem is that if someone miswires the input terminal, you have a low impedance path from +24 into the ADC.  How about some series R or making the 24 tap off point current limited.
 
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Offline apolloyo2liwTopic starter

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Re: STM32 based DAQ board
« Reply #2 on: June 19, 2026, 03:04:51 pm »
That's a valid point, thank you.
 

Offline lichurbagan

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Re: STM32 based DAQ board
« Reply #3 on: June 25, 2026, 03:27:30 pm »
I strongly suggest a simulation first if possible.
 

Offline richardax

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Re: STM32 based DAQ board
« Reply #4 on: June 27, 2026, 09:58:51 pm »
I would put resistors in series on the voltage sense inputs.
Small EE shop, building a lightweight requirements tool — minus the enterprise price tag. Pilot/feedback: https://crucible-mvp.vercel.app/overview?src=eevblog-sig
 


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