Table 2—Instead of providing a schematic for the evaluation board, I decided to show you the pins used for inputs and outputs. Remember that the signals need to be scaled appropriately outside the scope of this project.
| PIN | Function |
| Pin 7 | PWM Output (duty cycle = one oscilloscope division) |
| Pin 21 | PWM Output (duty cycle = eight oscilloscope divisions) |
| Pin 28 | Analog input (0 to 3.3 V) |
| Pin 25 | Analog output (0 to 3.3 V) |
| COM0 | Used to program the device via built in bootloader |
| COM1 | Set to communicate with computer at 57,600 bps |