Robot Car controlled by Smartphone via Bluetooth.

1: In the app I have the simple bluetooth connect button and 4 buttons: WASD.

Here is the android app code: Screenshot - 8173758785b672c79dfe2981cdfd5f09 - Gyazo

Ass you can see, if I press down W, it sends 1, if I leave it, it sends 2.

2: Arduino:

Here is the code: Arduino Bluetooth Robot Controller -

I will wait!

I will wait!

What for?