robochime_final_attempt.ino is the code preserved from the final integration stage of the RoboChime project.
The physical machine did not achieve reliable successful operation. For that reason, this file is documented as a final integration attempt, not as verified working firmware.
The sketch maps Arduino outputs to solenoids and motors and hard-codes a timed note sequence using digitalWrite() and delay() calls.
The prototypes/ folder contains three recovered Week 9 development exercises:
switch_input_test.inopotentiometer_output_selector.inosequential_switch_output.ino
These exercises were used to develop input/output control logic before final machine integration.