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STEVAL-MKI192V1 - 50% failure on delivery

ljm
Associate III

Hello

I ordered 10 samples of the LPS22HH pressure sensor evaluation board (STEVAL-MKI192V1). Upon receipt, I noticed that each board was packaged in a cardboard box but without an anti-static bag.

I then began taking measurements by varying the pressure inside a test chamber. Out of the 10 samples, only 5 function correctly and measure the expected pressure, while the remaining 5 consistently read only 1 bar.

Could this be due to the high sensitivity of the board and the sensor itself, or could it be a delivery issue? I find this particularly concerning as I ordered from three different distributors and encountered the same issue. This leads me to wonder if the sensor is particularly fragile. Could you provide any insights on this?

 

thanks

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