We added another safety feature to improve the reliability of our system.

Since the microphone and Arduino UNO Q are essential for detecting emergency sounds, a hardware disconnection could prevent the system from monitoring the environment correctly. To address this issue, we added a connection monitoring function.

If the microphone or Arduino UNO Q becomes disconnected, the system will detect the failure and automatically send an email notification to the emergency contact.

This allows the caregiver to know not only when an emergency sound occurs, but also when the monitoring system itself is no longer functioning properly.