FDC1004: Given the data from trial1 and this plot, how do you produce the Level value?

Shyam Thillainathan

Prodigy 75 points

Part Number: FDC1004

Given the data from trial1 and this pot, how do you produce the Level value?

LevelSense-EVK-2023-05-31-trial1.csv

lplot.pdf

over 2 years ago

0 John Miller - Sensing over 2 years ago

TI__Mastermind 40295 points

Shyam,

Perhaps it would be best if we start at the beginning.

What are you trying to do?

John

0 Shyam Thillainathan over 2 years ago in reply to John Miller - Sensing

Prodigy 75 points

Hi John,

Thanks for your response.

We have TI hardware and we’re using the TI EVK. We want to understand what TI application does with the measurements to produce the level measurement. The documentation doesn’t give us enough information to do so.

0 John Miller - Sensing over 2 years ago in reply to Shyam Thillainathan

TI__Mastermind 40295 points

Shyam,

If you need more info on how the device estimates the capacitance, please see equation (1) in section 8.6.1.1 of the data sheet.
It shows the calculation to convert the FDC1004 raw data output into a capacitance estimate.

Regards,
John

0 Shyam Thillainathan over 2 years ago in reply to John Miller - Sensing

Prodigy 75 points

Hi John,

Can you provide the source code?

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FDC1004: Given the data from trial1 and this plot, how do you produce the Level value?