Controller with non-hardware brakes and easy control

Controls
Left-Right: Arrows
Speed: Slider
Brake: F

Do you know the problem with the ugly linear motor brake? Here's the solution!
This chip (or however you want to call it) stops the wheels so they can't go on rolling. Please notice: the power supply with the speed value is optional! I built it a bit like a tutorial so you can check out how it works. Feel free to use it in your vehicles, would be cool if you post some nice cars as derivates. I hope you like it and it helps someone!! :)