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ECE 477 Design Review Team 01  Fall 2013

ECE 477 Design Review Team 01  Fall 2013. Paste a photo of team members here, annotated with names of team members . Outline. Project overview Project-specific success criteria Block diagram Component selection rationale Packaging design Schematic and theory of operation PCB layout

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ECE 477 Design Review Team 01  Fall 2013

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  1. ECE 477 Design Review Team 01  Fall 2013 Paste a photo of team members here, annotated with names of team members.

  2. Outline • Project overview • Project-specific success criteria • Block diagram • Component selection rationale • Packaging design • Schematic and theory of operation • PCB layout • Software design/development status • Project completion timeline • Questions / discussion

  3. Project Overview • Android controlled quadcopter • Bluetooth connection (~300 foot range) • GPS, compass, ultrasonic, battery monitor • Brushless DC motors with speed controllers • PWM input flight controllerboard for stabilization • Waypoint navigation & auto take-off/land

  4. Project-Specific Success Criteria • An ability to determine the position of the quadcopter using GPS • An ability to control the copter using an Android device over a Bluetooth interface • An ability to automatically take-off and land • An ability to fly-by-waypoint using GPS coordinates • An ability to monitor the state of battery charge and relay back to user

  5. Component Selection Rationale • Microcontroller • 5 PWM, 1 SPI, 3 UART, 4 A/D • Spare ports • Speed and flash not a constraint • Peripherals • 3.3 volts • Physical size • Bluetooth – range (~300ft) • GPS – accurate, interference • Magnetometer – motor interference

  6. Component Selection Rationale • Microcontroller (PIC24FJ256GB110) • 3 SPI, 3 I2C, 4 UART, 9 PWM, 16 A\D • 16 Bit • 85 I/O pins, 100 pins total • 8 MHz Internal Oscillator • Good documentation and support • All peripherals on 3.3 volts • All peripherals on breakout boards that are small enough

  7. Switching Voltage Regulator

  8. Vref Voltage Regulator

  9. Voltage Divider

  10. Line Level Translator

  11. Programming Header

  12. Software Design/Development Status • Development with PIC24FJ128 • No Peripheral Pin Select (PPS) • Ordered PIC24FJ256 with PPS Plug-In Module (Thank you Joe!) • UART practice (RFID) • Heartbeat, Reset, Bluetooth, Proximity • Android app developed • Software flowchart (very modular)

  13. Thank You!Questions / Discussion

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