if available can you please share the pins supporting touch and the design guideline for capacitive touch pad design with nRF52840.
if available can you please share the pins supporting touch and the design guideline for capacitive touch pad design with nRF52840.
Hello,
Any analogue pin can support this. I do not think we have any design guidelines for capacitive touch pad. This is supported in nRF5 SDK https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.0.0/hardware_driver_comp.html?cp=9_5_12_2_3_1_0#hardware_driver_comp_csense .
We have an example https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/lib_csense_example.html?cp=9_1_4_6_5 for testing capacitive sensor. This is very old example. It is only proof of concept. Not for production quality.
Thanks.
BR
Kazi