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• Software design/development status• Project completion timeline• Questions / discussion

Project Overview

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

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

• 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

Component Selection Rationale

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

Switching Voltage Regulator

Vref Voltage Regulator

Voltage Divider

Line Level Translator

Programming Header

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)

Flight Testing / Debugging

PCB Testing

PCB Soldering

Magnetometer

Ultrasonic

GPS

Bluetooth

Check for Interference

Flight Controller PWM Signals

Test Flight with Transmitter

Schematic/PCB Layout

Part Orders

13-Sep 23-Sep 3-Oct 13-Oct 23-Oct 2-Nov 12-Nov 22-Nov 2-Dec 12-Dec

Thank You!

Questions / Discussion