nrf52 Battery Measurement 4*AA batteries

[Bilal]

Hello,

I need to measure battery on my nrf52 beacon. My input voltage is 4*AA batteries(each 1.2V so in total 4.8V). The schematic provided by the hardware developer is as follows

Now I read few posts about battery measurements and looks like I need to add some additional hardware? Kindly tell me whether its possible to measure voltage using existing hardware, if so please describe, the calculations or at least point me to the right direction.

Thank You

Regards

Bilal

[awneil]

Bilal said:

I read few posts about battery measurements and looks like I need to add some additional hardware

Yes - that should be clear from those posts!

Surely, this is something that your hardware developer should be doing? It is a hardware question!

[Bilal]

I think it involves both, hardware and software. As far as I know , there must be some kind of voltage regulator used to bring down voltage to 3V. Can we use that to do our battery measurements?

[awneil]

Of course - the whole thing involves both!

But it should be the hardware designer's job to feed an appropriate signal to a pin on the chip.

You need a voltage divider - not a regulator.