search

beshaya / FDC1004

Arduino Library for FDC1004 Capacitance to Digital Sensor
12 stars 7 forks source link

FDC1004EVM-arduino #8

Open harikrishnasv1988 opened 4 years ago

harikrishnasv1988 commented 4 years ago

Hello All,

I am new to Arduino (2 days old!). I started using the protocentral FDC1004EVM breakout trying to execute https://www.hackster.io/team-protocentral/non-contact-capacitive-liquid-level-sensing-using-fdc1004-9333c7 and using codes

https://github.com/Protocentral/ProtoCentral_fdc1004_breakout

I am stuck with the the serial monitor showing 0.00pF always and shows no readings even if i bring my hand close to the chip. I require urgent help. Kindly give in your valuable suggestions.

  1. read capacitance values
  2. read mullti-channel simultaneously. (2 sensor at least)
  3. able to plot or acquire data in real-time
harikrishnasv1988 commented 4 years ago

Hello All,

I am new to Arduino (2 days old!). I started using the protocentral FDC1004EVM breakout trying to execute https://www.hackster.io/team-protocentral/non-contact-capacitive-liquid-level-sensing-using-fdc1004-9333c7 and using codes

https://github.com/Protocentral/ProtoCentral_fdc1004_breakout

I am stuck with the the serial monitor showing 0.00pF always and shows no readings even if i bring my hand close to the chip. I require urgent help. Kindly give in your valuable suggestions.

  1. read capacitance values
  2. read mullti-channel simultaneously. (2 sensor at least)
  3. able to plot or acquire data in real-time

I tried several tims and I am unable to communicate with the FDC104EVm. I noticed even after removing the chip, the Arduino is still showing "0 pf". Can someone suggest an urgent solution? I am stuck with my project.

beshaya commented 4 years ago

I'm guessing you have a hardware problem. Some things to check:

harikrishnasv1988 commented 4 years ago

Hello Beshaya, Thanks for the response. I used 3.3V terminal on the arduino.

3.3 to vcc Gnd to gnd SCl to A5 SDA to A4

As per the descriptions on protocentral cite. I also tried with and without some 10 k resistors between SCL/SDA and A5/A4. Sorry, I am new to arduino (I got this only 2 days back) and am stuck with this.

Please advise.

beshaya commented 4 years ago

Is the Arduino itself 3.3V? (for instance, most Unos are not). If not, the chip may not be able to communicate with the Arduino's 5V logic.

harikrishnasv1988 commented 4 years ago

Thabks for the fast response.

Oh, I see. I had no idea about this. Yes your are right it's 5V I just checked . Is there anywya to make it 3.3V as you said? I also searched online and see that arduino Due is 3.3V.

Any suggestion?

beshaya commented 4 years ago

I don't think there's an easy way to change it to 3.3V. I usually used arduino pro mini's, which are available in 3.3V. Note that they will have a different pinout.

I haven't worked with this code / chip in over 5 years, so I'm afraid there's not much more help I can offer.

On Fri, Nov 13, 2020 at 6:36 PM harikrishnasv1988 notifications@github.com wrote:

Thabks for the fast response.

Oh, I see. I had no idea about this. Yes your are right it's 5V I just checked . Is there anywya to make it 3.3V as you said? I also searched online and see that arduino Due is 3.3V.

Any suggestion?

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/beshaya/FDC1004/issues/8#issuecomment-727124643, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABM25LNI3S3IAL27OQT22J3SPXULJANCNFSM4TTFD2HA .

harikrishnasv1988 commented 4 years ago

Thanks Benjamin. Appreciate your responses. I will try to see if it's possible using Pro mini.

On 14 Nov 2020 11:13 AM, Benjamin Shaya notifications@github.com wrote:

I don't think there's an easy way to change it to 3.3V. I usually used arduino pro mini's, which are available in 3.3V. Note that they will have a different pinout.

I haven't worked with this code / chip in over 5 years, so I'm afraid there's not much more help I can offer.

On Fri, Nov 13, 2020 at 6:36 PM harikrishnasv1988 notifications@github.com wrote:

Thabks for the fast response.

Oh, I see. I had no idea about this. Yes your are right it's 5V I just checked . Is there anywya to make it 3.3V as you said? I also searched online and see that arduino Due is 3.3V.

Any suggestion?

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/beshaya/FDC1004/issues/8#issuecomment-727124643, or unsubscribe https://github.com/notifications/unsubscribe-auth/ABM25LNI3S3IAL27OQT22J3SPXULJANCNFSM4TTFD2HA .

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHubhttps://github.com/beshaya/FDC1004/issues/8#issuecomment-727135065, or unsubscribehttps://github.com/notifications/unsubscribe-auth/ARXJDIVY2ZTOXK3UVCJN5O3SPXYWJANCNFSM4TTFD2HA.

This e-mail and any attachments are only for the use of the intended recipient and may contain material that is confidential, privileged and/or protected by the Official Secrets Act. If you are not the intended recipient, please delete it or notify the sender immediately. Please do not copy or use it for any purpose or disclose the contents to any other person.

Voligny commented 5 months ago

Hi, I am having the same problem; serial monitor only reads 0 pF. I am pretty sure my connections between electrodes and FDC1004 are ok. I am using the arduino uno, is that the problem? Should I be using arduino pro mini?