Phillip Byers Jonathan Mulvaine Josh Schortgen Michael Broski TEAM BOAR Phillip Byers Jonathan Mulvaine Josh Schortgen Michael Broski

PSSC’s An ability to measure the internal temperature of two separate points in the meat and the temperature inside the roaster using RTD sensors. An ability to control the temperature inside the roaster by modifying gas flow using a PWM signal to operate a voltage controlled gas valve. An ability to store and load cooking profiles from memory. An ability to automatically ignite and detect whether a flame is present. An ability to wirelessly communicate temperature information to a remote display device.

3 Functional BLocks

Digital Placement Considerations De-Coupling Orientation of Xbee Minimize trace length of signals (LCD, ATD, Xbee) Avoid running signals under Oscillator (Manf. Recomended) De-Coupling Keep as close to power pins as possible Minimize Noise (especially important for IC’s with both digital and analogue parts).

Analogue Placement Away from transformer to eliminate EMF interference. Separate ground from digital Oriented near the edge of the board for header connections.

Power Chassis mount transformer Buffer space around regulators allowing thermal breathing room Star ground configuration

Questions?