I have few used smartphones in my drawer which i don’t use anymore and was wondering to see if they can be used to do different things such as use as sound, camera, motion within SmartThings via a DTH?
Possibly, it depends on the exact phone model. But it takes more than just a DTH. If it’s an android phone, there are quite a few things you can do with a combination of two paid apps: Tasker, and sharptools.
@joshua_lyon is the developer of sharptools and very active in this forum, he may be able to say more.