This is my tinkercad, Login | Tinkercad, one switch represents a phone, and the other a car brake, when both switches are pressed the servo motor turns and then when the button is pressed the LED light turns on.
When making my physical prototype, how would I be able to plug in an actual phone into a usb instead of using a switch?
If you can send data to an Arduino via your phone, using the USB connection, the only remaining problem is to figure out how the Arduino will control the car brake.