Capacitive sensor sampling using nrf Connect

[ilavale98]

Hello,

I would like to program my nrf52832 board with nrf Connect SDK to sample values from a capacitive sensor and detect when it is touched.

I saw there is an example (csense_drv) in nrf5 SDK using comparator to do that, I tried to adapt the code in nrf Connect but I faced lot of issues. 

Is it possible to do it in nrf Connect? Which libraries should I use? 

[Priyanka]

Hi Ilaria,

Letting you know that I am looking into this and will get back to you within the end of the day.

Regards,

Priyanka

[Priyanka]

Hi Ilaria,

There is no similar example code in the nRF Connect SDK. There is this hardware issue that makes it practically unusable with the nRF52 series.

Regards,

Priyanka

[ilavale98]

Hi Priyanka,

Thank you, I understood the problem, so how can I read a capacitive sensor with nrf52832 in a reliable way? I read that the COMP method was the preferred one but apparently it isn't :D

[Priyanka]

Hi Ilaria,

Have you gone through this tutorial of ours? Capacitive Touch on the nRF52 series  

Regards,

Priyanka

[oasixer]

Did you ever get it working? I am also looking to implement cap sense on an nrf52840 and not sure which approach to use, any guidance is appreciated!