We are planning to use Ruuvi tags without using the accellerometer or the pressure/temperature/humidity sensors. We will be reprogramming the nRF52x host to use very low power and we do not want either sensor drawing much power from the battery. I can see from their datasheets that both sensors use very little power when they are “powered down” or in a “sleep” mode. So, we will just need to ensure that both sensors are in a low-power state. Are each of the sensors in a low-power state by default when they are powered up or do we need to exercise each of their SPI interfaces to put them into a low-power state? If we need to put each sensor into a low-power state, please advise if there is sample code that supports this function.
Thanks in advance,