Integration of other gadgets as shields to Arduino

Using Arduino Project Guidance
1

Hi There,

I would just like to ask if its possible to integrate other gadgets like smartwatches and old phones to act as a shield when using Arduino?

Example: I would use a smart phone to act as a shield when making an arduino project to utilize its sensors like camera, gyro, and network capabilities.

Now, you might be asking why would I need arduino, if I already have a smart phone that can do lots. Well, aside from letting old gadgets go to waste, why not simply re purpose them to improve its functionality?

2

I doubt that shields can be made of such gadgets, except if you can connect them to a proto shield.

Decomposing mobile devices into reusable modules is hard, near impossible, so that a wireless (Bluetooth...) connection looks more promising to me.

3

Indeed, those devices are highly integrated, not going to be easy if possible at all to tap into the PCB and read the sensors. Bluetooth connection to an app on the device is a more workable approach.

4

https://1sheeld.com/
"1Sheeld turns your smartphone into 40 different Arduino shields."
"1Sheeld+ based on a BLE “Bluetooth Low Energy” technology which is supported only by devices that has bluetooth 4 , So please check if your device has the technology specially in old android/Iphone devices."