ECE 477 D ESIGN R EVIEW T EAM 5 MY ATM F ALL 2012 Tung Lun Loo Yu Chen Lim Chuan Yean Tan Xue Yuan Wong

O UTLINE 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

P ROJECT O VERVIEW ATM is idle when vacant Occupancy sensor detects the presence of a user ATM authentication Facial recognition 4 digit PIN Update cash card Deposit Withdrawal

P ROJECT -S PECIFIC S UCCESS C RITERIA 1. An ability to use face recognition to verify the identity of the user. 2. An ability to use touchpad for menu navigation. 3. An ability to sense the presence of a user in front of ATM. 4. An ability to read and update the value inside a cash card via RFID. 5. An ability to use keypad to input numbers for PIN validation and transaction purposes.

B LOCK D IAGRAM

C OMPONENT S ELECTION R ATIONALE At least 3 timers to support RFID (Manchester coding), sample keypad push buttons, detect multiple pulses in occupancy sensor Has UART interface to communicate with Atom board I/O pin requirements: keypads (7), PIR motion sensor (1), RFID base station (3) Microcontroller

PIC18F24J11AT90PWM2B 28 pins24 pins Three 16-bits timersThree 8-bits timers Supports UARTSupport UART PIC18F24J11 VS AT90PWM2B

C OMPUTATION DEVICE RATIONALE Run responsive GUI on the monitor Detect user’s input from touchpad Communicate with microcontroller via COM port (RS232) Capture images frames using webcams Process the images using face recognition algorithm Upload the user’s account data to the server

Intel Atom N270BeagleBoard-xM Atom Processor 1.6 GHzARM Cortex A8 1 GHz 512MB RAM 3 USB Ports4 USB Ports VGA, RS232DVI, RS232 I NTEL N270 VS B EAGLE B OARD - X M

P ACKAGING D ESIGN

M ICROCONTROLLER

K EYPAD + SENSOR

R FID CIRCUIT

C ONNECTORS / HEADERS

P OWER SUPPLY

PCB L AYOUT Noise from RFID circuit Antenna placed at the edge Separation of digital and analog signals Place RFID away from power supply 4.7 in × 3.1 in

Microcontroller Power Supply UART RFID Level Translator

Decoupling capacitors 40 mil trace width Analog Ground Digital Ground

16 mil trace width Decoupling capacitors 40 mil traces for power and ground

Decoupling capacitors Antenna Antenna ground Digital ground

S OFTWARE D ESIGN /D EVELOPMENT S TATUS Microcontroller Flag driven Occupancy sensor Keypad scanning RFID read UART read Developed functions RFID write UART read and write

S OFTWARE D ESIGN /D EVELOPMENT S TATUS OS - Linux Mint 14 Face Recognition - OpenBR Library Graphical User Interface QT Creator C++ Database set up on a server MySQL Atom Board will fetch/insert data from/to the database through LAN

P ROJECT C OMPLETION T IMELINE Complete RFID testing Week 8 Full prototype testing Week 9 Populate PCB Week 11 Finalize microcontroller code Week 12 Finalize server testing & software development Week 13 Finalize packaging Week 14 Perform complete test Week 15

Q UESTIONS / D ISCUSSION