To use MIOIO cards you do not have to write a single line of code,
just making an application with MIOIO App Inventor 2 is enought to use it.
In minutes you can start using it.
Control MIOIO with your Android through bluetooth.
Just connect a compatible bluetooth device to the USB of the MIOIO.
USB Host Bluetooth
Control MIOIO-App Inventor from your Android device via usb.
It is as simple as connecting the mobile phone charger.