I have something similar set with Tasker to locate _my_ phone. That is, a particular word texted to my phone number will make the phone max out the volume, turn on the camera flashlight, and start making noises in the loop. I can also trigger this from my smartwatch[0].
I also have a "haptic test" function: press the button, the phone vibrates briefly. I originally created that check the delay on the Pebble-Tasker connection, but ended up using it almost every day to find my phone among the clutter in the house.
Tasker is amazing, if you have Android, I recommend checking it out.
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[0] - misplacing a phone while having it still in Bluetooth range actually happened to me once long ago with a feature-phone. I looked and looked and couldn't find it. It was set on silent, so calling it didn't help. Then I noticed it's still connected via Bluetooth to my PC's phone management app, so I manually turned the ringer on, and discovered it deep within the mechanism of my bed. Finding it there without this trick would probably take me hours.
I also have a "haptic test" function: press the button, the phone vibrates briefly. I originally created that check the delay on the Pebble-Tasker connection, but ended up using it almost every day to find my phone among the clutter in the house.
Tasker is amazing, if you have Android, I recommend checking it out.
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[0] - misplacing a phone while having it still in Bluetooth range actually happened to me once long ago with a feature-phone. I looked and looked and couldn't find it. It was set on silent, so calling it didn't help. Then I noticed it's still connected via Bluetooth to my PC's phone management app, so I manually turned the ringer on, and discovered it deep within the mechanism of my bed. Finding it there without this trick would probably take me hours.