My openmv4 h7 plus is broken

OpenMV Products
1

my openmv4 h7 plus has worked for about 3month,and this afternoon,it doesn’t work. the communication between PLC and openmv has error.
i fell the temperature of box which openmv in it is very high.
i find the box shield voltage is 3.3v and the board of openmv is 3.3V.

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i cut off the openmv power, connect the opoenmv by usb to openmv IDE, it failed.
i open win explorer, and can’t find the usb disk .
what the wrong with the openmv ,what could be the reason of that?

2

It’s potentially burned out.

Was anything shorting in the box and did VIN go above 5V?

The units don’t fail unless they are exposed to damaging voltage or short circuits.

3

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the +5V comes from dc -dc power 24-5V. the picture above is example.
and the output of dc -dc power is still +5V.
this openmv is my second one, and the first one is broken because of 485 module is broken .that 485module is OPENMV RS485.

4

Hi, we sell an RS485 shield, however, it’s for the RT1062. The only other RS485 module is from SingTown. Which one did you buy?

5

RS485 module is from SingTown :disappointed_relieved:
i just find the different between from sintown and from RT1062

6

Theirs is supposed to be isolated. So, it shouldn’t break the camera. But, you may wish to contact them.