FDC1004 Texas Instruments (10 pins)

Other Hardware Sensors
1

I am trying to use FDC1004 Texas Instruments for capacitance measuring of sensors.

Where can i see some sample of breadboard connection etc to understand how to work this out?

2

Did you happen to use words like "arduino FDC1004 Texas Instruments" in an internet search engine?

1 Like
4

Hello,

Has anyone worked with Texas Instruments FDC1004. I have one of this (ARIES).

But I cant see where to connect what using it with Arduino. Is not like that one which has indications on its pins (https://i0.wp.com/protocentral.com/wp-content/uploads/2020/10/IMG_0628.jpg?fit=1231%2C1264&ssl=1).

Is like that one https://snapeda.s3.amazonaws.com/partpics/Texas%20Instruments_FDC1004-DGST-1_60962.jpg which means I dont know what schematic to use.

What do you suggest? I have a READ code to test if this is properly connected on Arduino Pro mini but cannot figure it out!!

5

Download the user guide for the FDC1004 evaluation board and study the schematic to see a typical wiring diagram for a 5V system. FDC1004EVM Evaluation board | TI.com

6

mine is 3.3V. does it make sense?

7

Yes. Study the diagram, which has a 5V USB connection and supply.

8

OK I will check.

Have you seen by lack anything similar on an Arduino Project. I am trying to wok on capacitive measurement

9

I used my favorite search engine with the phrase "arduino fdc1004" and that turned up a number of interesting links.

I can therefore recommend using that approach.

The basic connection could hardly be simpler: power, ground and I2C lines. Of course you need decoupling capacitors and pullup resistors if you have the bare chip.

10

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I am working on that design actually.

So connected from FDC1004 to arduino

  • SDA from FDC1004 to Arduino Mini Pro
  • SCL from FDC1004 to Arduino Mini Pro
  • 3.3 V from FDC1004 to Arduino Mini Pro
  • Gnd from FDC1004 to Arduino Mini Pro

and a capacitor between CIN1 and Gnd.

I have a schematic like that:

image
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But no luck.

11

If you are a novice at electronic design, this will be a challenging project.

You are not following the recommendations for decoupling capacitors, and I can't imagine that it could ever work on a breadboard because of stray capacitances. Input lead design will also be critical.

See the Layout guide in the FDC1004 data sheet for a recommended PCB configuration.

12

You are saying that we cannot use it on a breadboard???

13

if you do a web search for arduino FDC1004 you will get links which may help, e.g. fdc1004 library

14

Any other help??

15

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