Hello,
we are currently in the development of a low power, battery powered device that needs to count slow pulses (period between ~10ms and several seconds).
At the moment, we are using a competitor's MCU, but we are considering nRF52832.
Our current MCU in the system consumes ~0.5uA and utilizes a low power counter that handles the pulse counting.
We identified the nRF52832 power consumption in the desired low-power mode with the desired peripherals and it seems ok (but without any counter peripheral enabled) - around 0.4uA. However, we are not happy with the FW handling of pulse counting. So we are considering a COUNTER in low power counter mode.
We've tried to estimate a power consumption with low power counter, however PS does not provide any useful info regarding this.
We've found some old threads:
- https://devzone.nordicsemi.com/f/nordic-q-a/8979/nrf52-very-low-power-counter
but they provide (hopefully) preliminary and devastating results (7 or 20 uA!) for low power counter!
Since these threads are done on older revisions of IC, are there any newer information regarding power consumption of counter available?
Thank you for the help in advance and best regards!
Tobias