esphome/tests/components/exposure_notifications/common.yaml

esp32_ble_tracker:

exposure_notifications:
  on_exposure_notification:
    then:
      - lambda: |
          ESP_LOGD("main", "Got notification:");
          ESP_LOGD("main", "  RPI: %s", format_hex(x.rolling_proximity_identifier).c_str());
          ESP_LOGD("main", "  RSSI: %d", x.rssi);