| Use of STK500 and Atmel Mega32 MCU in lab | $15 |
| SD Card Connector from Digikey (HR845CT-ND) | $3.80 |
| 32 Megabyte SD card | Previously owned |
| Wires, LED, pushbutton, solder | Free in lab |
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Costs
 Block diagram of the major components of kaOS  Stepup circuit to change 3.3V from the card to the 5V required by the Mega32  Stepdown circuit to change 5V from the Mega32 to the 3.3V required by the card  Voltage regulator to provide a steady 3.3V.
Most of the work we did on kaOS was done together, either coding at the same
screen or working out the design together. Toward the end of the
semester, to maximize our time, we divided the labor a bit. Nick worked
more on the operating system functionality while Adam built the circuit and
worked on reading from and writing to the SD card, even though this
division of labor is a bit ironic given our majors. In the
last several days before our demonstration, we came back together to get
the loading working with the operating system.
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Nick and Adam