1. Gwynneth Davidoff, Kendall Pletcher, Mary Schmidt, Amy Whitcombe

2. PERT chart  Finishing up code  Emphasis on testing this week  See Excel file

3. Sensor testing  Current sensor Amplifies voltage measurement by a fixed amount set by external resistances Need to be certain that we set gain exactly  Temperature sensor Giving room temperature readings of ~27°C, increased to ~32°C when touched

4. Revised circuit diagram

5. Coding progress  PIC: Finished ○ Reduced 23 functions in Brad’s code to 6 useful ones; made corresponding changes in Python ○ PIC programmed without errors In-progress ○ Trying to test using a DAC, but USB device isn’t recognized by computer—talk to Siddarthan  GUI: Finished ○ ASCII file uploading ○ DC-DC voltage setting, LED amplitude setting In-progress ○ Housekeeping ○ LED pulse width, frequency controls ○ Testing ○ Interfacing with PIC

6. Next steps  Work on interfacing GUI and PIC  Getting PIC/USB communication to work  testing overall circuit with parts