i had a situation at home. i had to alert my family member early morning but cell phone was turned off. is there any device which works and make loud sound using IOT ?
There are several Zigbee sirens available.
i had a situation at home. i had to alert my family member early morning but cell phone was turned off. is there any device which works and make loud sound using IOT ?
There are several Zigbee sirens available.