This is an old revision of the document!

---

For the final demonstration four optical sources were selected: a red LED, a yellow LED, a green LED, and a blue LED. The sources were inserted to be analyzed randomly. The program Hyperterminal was set to record and the spectrometer was turned on. The stepper motor rotated the bolt which translated the photodiode across the spectrum. The PIC microcontroller received the analog readings from the photodiode and converted them into a digital value. This value was transmitted via the RS232 connection in ASCII format to the computer. The Hyperterminal console monitored the output and recorded the results on a text pad. The process took approximately 6 minutes. This was repeated for the other three LEDs at random.

The spectrometer performed according to expectations.