shanyechungu commented on issue #2338: URL: https://github.com/apache/mynewt-core/issues/2338#issuecomment-663128693
In their SDK->SAADC (https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.nrf52832.ps.v1.1%2Fsaadc.html) It states the following: _The assumption in single-ended mode is that the internal ground of the ADC is the same as the external ground that the measured voltage is referred to. The ADC is thus sensitive to ground bounce on the PCB in single-ended mode. If this is a concern we recommend using differential measurement._ Thus, this might be a hardware issue. Software wise, it may be good. I am using PCA10056 which is the official DK board. I still have this ground bounce issue. For developers, they may want to avoid this issue by using differential mode. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
