With millions of smart phones sold every year, what do you do with your old Android phones? Many people toss them or leave them laying around without use, but are there useful things you can use them for? Things like setting up a security camera or a dashboard camera for your car are all cool things you can use that old smart phone for.

Using Moto360 you can convert you Android phone into a dash cam for your car. This cool application will record your driving in high definition along with audio. You can also set it to track your speed in MPH or KPH. If you make your own mount, you can even use this application on the Android you use every day. Just place it in the mount when you go for a ride. This application has “flight mode” so you can set it to ignore all cars while the camera is in use.

Another cool use is to use your Android to remotely monitor your house when you’re gone. Using the IP Web Cam application you can setup your phone or tablet as an IP cam. You can set it watch out of the front and rear cameras as well as change the picture quality. You can remotely login to see your video feed or view a snapshot of the current situation. This app is awesome if you’re going on vacation but are worried about the security of your house when you’re gone.

If your smart phone has an IR sensor, you can turn it into a dedicated remote control. If you watch a lot of movies on your PC, you can use VLC direct and use it as a remote control for your computer.

There are many things to do with an Android once you’re done using it as a phone. Speedometer, camera on an RC car, IP cam, and dash cam are all awesome things to use that old phone for.