ADC VALUE MEASUREMENT IS FLUCTUATING.

RE: ADC VALUE MEASUREMENT IS FLUCTUATING.

Kenneth — Wed, 29 Jan 2020 09:11:07 GMT

There should already be some recommendations in the blog post and comments below, but in addition I would check out using oversampling the input, but also schedule the ADC measurement between other activity, such that that the device for instance does not run peak radio currents and/or motors and/or leds that may draw excessive current during the battery measurements.

Kenneth

RE: ADC VALUE MEASUREMENT IS FLUCTUATING.

NANDHU — Wed, 29 Jan 2020 03:23:00 GMT

kenneth,

What are the different methods we can implement in software part to remove the adc value fluctuation.

RE: ADC VALUE MEASUREMENT IS FLUCTUATING.

Kenneth — Thu, 23 Jan 2020 12:37:00 GMT

Please check out:
https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/measuring-lithium-battery-voltage-with-nrf52

You can find that we suggest a 10nF capacitor.

Best regards,
Kenneth