Battery service work on nRF52840 DK but cannot run on customer board.

[Quangca]

Hello Nordic support team,

We are making product relate to battery service.

Tool and SDK: - nRF5_SDK_17.0.2_d674dde

                        - SEGGER Embedded Studio for ARM Release 4.52c

- I using "ble_app_proximity" test on nRF52840 DK. It run well both on pca10056 and pca10056e platform.

    Battery percentage change on real time.

- But when i run  "ble_app_proximity" with pca10056e on nRF52811 customer board:

    Program can run with all service but battery percentage always 100% not change.

--> what is the reason battery percentage not change( it always 100%):

1. Do i need do change some thing with customer HW board eg: connect AIN pin to VDD for ADC function?,...

2. Do i need change any thing for SW config: with nRF52840 DK battery percentage change on real time with both pca10056 and pca10056e platform.

[Quangca]

My i issue is solve.

Sorry for my inconvenience, i dont check the mvolts >= 3000 state,

the CR2032 is 3.3V and it take  long time to make mvolts < 3000 

I compare mvolts with 3300, it worked

[Sunil vignesh]

HI,

 I thing you need to check the pins . As a custom board you have to cross verify the pin connection and change the pin name to read the ADC value or else if you use VDD for the ADC value taken . make sure you have not use voltage regulator . if you use regulator then constant voltage and then it will be 100%.

and also check the ADC REFERENCE