How to test Csense example for my nrf52 DK

RE: How to test Csense example for my nrf52 DK

Einar Thorsrud — Tue, 05 Jun 2018 07:26:36 GMT

Hi,

Please refer to the Capacitive Sensor low-level library documentation for detailed description about the HW and SW setup. The Capacitive Sensor Low-level Example documentation has a short explanation about the example.

RE: How to test Csense example for my nrf52 DK

Giang — Mon, 04 Jun 2018 14:25:49 GMT

hi , when i set USE_COMP = 1 , Things are not getting better .

Can you describe in detail how to test for me?

RE: How to test Csense example for my nrf52 DK

Einar Thorsrud — Mon, 04 Jun 2018 13:12:49 GMT

Hi,

A single pin per sensor pad only works when you are using the COMP implementation and have set USE_COMP to 1 in your projects sdk_config.h file. This is not enabled by default, as the ISOURCE feature of the COMP has too high variation. Your HW setup matches this configuration, but how have you set USE_COMP?

The default configuration in the SDK is USE_COMP set to 0. In this case, two pins and one resistor are needed for each sensor pad. T Hardware setup section in the Capacitive Sensor low-level library documentation shows the correct setup.