Issues Adapting SPI VI

[jd555]

I am using the LINX kit to obtain SPI readouts from Arduino boards for my 12 bit pressure sensor. I found a generic kit that gives constant readouts for a 12 bit microphone. However, when I apply known pressure values, the numbers are wrong. I think there is an issue with isolating the desired variables from the array, but I am not sure what it is. 

The supply voltage in function simply multiplies the final output by the supply voltage value, so I have just been setting it to 1 to nullify this.

If it at all matters, the script is written for

https://store.digilentinc.com/pmod-mic3-mems-microphone-with-adjustable-gain/

and I am using

https://www.mouser.com/datasheet/2/187/honeywell_sensing_basic_board_mount_pressure_abp_s-1662208.pd...

[User002]

Hi, @jd555,

Do you mind attaching your VI(s)? It would likely get you a bit more help. (And you might want to save your file(s) for a previous version - not everyone has LV2020)

Regarding your specific issues,

• What values are you expecting? And what values are you getting?
• Have you made sure your wiring is correct? (That one gets me more than I like to admit)

-joeorbob