Posts: 2
Joined: Wed Jul 25, 2018 1:57 am

I2C and sensor short circuit protection

Thu Sep 13, 2018 1:23 pm

I am using a Pi in a fairly rough industrial environment. While the board itself is protected (physically), the sensors (some analog VDC and some I2C) are out in the "real" world. At times the sensors or the connections to them have been subjected to damage, including shorting of the Vcc voltage supply lines to GND or to signal lines leading to more than one fried Pi.

I was thinking of putting some very low current fuses on the Vcc supply lines, but thought I'd check here on strategies for board protection in this type environment.

Any insight greatly appreciated.

Posts: 704
Joined: Wed Jul 25, 2018 9:29 pm
Location: Netherlands

Re: I2C and sensor short circuit protection

Fri Sep 14, 2018 6:34 pm

Can you post your schematic how you wire everything and possible a picture. And what is the distance between your Rpi and the sensors?
Then we can see what the possible problem is and we don't need to guess what the issue is. However, I have some ideas what could be wrong.

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