1. 4 November 2004AME 470 – Team Unum PDR #9 – 4 November 2004 Product Control and Microprocessor Programming Chris Tilton Team UNUM

2. 4 November 2004AME 470 – Team Unum Control Elements Pushbutton Switches Transducer Readings Solenoid Position MiniMAX Programming

3. 4 November 2004AME 470 – Team Unum Pushbutton Switches Ground Button V cc (5 V) I/O Pin MiniMAX Button Ground V cc (5 V) I/O Pin MiniMAX Ground Button I/O Pin MiniMAX 5 V 0 V 5 V 0 V 5 V 0 V

4. 4 November 2004AME 470 – Team Unum Transducer Readings V cc (5 V) I/O Pin MiniMAX Ground Transducer 5 V 0 V

5. 4 November 2004AME 470 – Team Unum Solenoid Position Relay Diode Ground V cc (5 V) I/O Pin MiniMAX Transistor Solenoid Power

6. 4 November 2004AME 470 – Team Unum MiniMAX Programming {MiniMAX is OFF} If pushbutton is pressed, turn ON Prompt user for desired pressure {User enters pressure value with pushbuttons} Begin reading pressure data from transducer Display desired pressure and current pressure If current pressure < desired pressure, activate relay {Relay turns on solenoid and the vessel begins inflating} If the current pressure = desired pressure, turn off relay {Relay turns off solenoid, vessel stops inflating}

7. 4 November 2004AME 470 – Team Unum Upcoming Activities PDR #10:Subsystem Integration Thursday, November 11 Questions?