XIAO BLE Sense - LSM6DS3 INT1 Single Tap Interrupt

Products & Technology XIAO
16

@chuck thank you for the example code!!

did you manage to get any further optimisations in terms of power draw? would turning the mic off help? A couple of things I’m trying to get my head round:

  • what is the difference between sd_power_system_off(); and NRF_POWER->SYSTEMOFF = 1;
  • would sd_power_mode_set(NRF_POWER_MODE_LOWPWR);, sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE);, __WFE();, __WFI();, sd_app_evt_wait(); help at all?

I’m trying to get a battery powered wearable working which is effectively completely powered down (no mic, BLE, data persistence etc so system resets are fine) when not in use, but can be woken up/powered down with a double tap.