XIAO BLE Sense in deep sleep mode

Products & Technology XIAO
100

Hi , this may not be exactly what you want but I’m using Sense version and double tap to wake up from sleep; here is a snip from the link here, I have a video on here showing it work as well.

void goToPowerOff() {
  setLedRGB(false, false, false);
  Serial.println("Going to System OFF");
  u8x8.clearDisplay();
  u8x8.setCursor(0, 3);
  u8x8.print("SLEEP");
  setupDoubleTapInterrupt(); // not needed here, if already applied..
  delay(1000); // delay seems important to apply settings, before going to System OFF
  //Ensure interrupt pin from IMU is set to wake up device
  nrf_gpio_cfg_sense_input(digitalPinToInterrupt(int1Pin), NRF_GPIO_PIN_PULLDOWN, NRF_GPIO_PIN_SENSE_HIGH);
  delay(2000); // delay seems important to apply settings, before going to System OFF 
  NRF_POWER->SYSTEMOFF = 1;
}

The Nrf52840 supports a couple levels of sleep and even more when you turn off peripherals etc.
the Nordic forum has more on the topic as well.
HTH
GL :slight_smile: