In lab_3 you built a microphone preamplifier and you wrote (or modified) code to control the servo motor. In lab_4 you will design the schematics of a daughterboard PCB.

In this exercise you will start from a working example of the mic-servo program and modify it so that it works even if it is not enumerated by USB.

Here are the steps of this exercise.

1. Download the working example project mic-servo.zip and import it.
2. Build this working example.
3. Write it to AVR32 and try to run it. Does it work? It should only work if you are also running rainbow on the host.
4. Once you get the program working, your exercise is to make it work even if rainbow is not running.