 Cycle 1 Accomplishments  Cycle 1 Obstacles  Box Design Changes  Fingerprint Scanner Interface  Locking Mechanism Design  Motion Detector System  Cycle 2 Goals

 Individual hardware components for one complete mailbox  A working motion detector to identify mail  Lock opens and closes with different input signals  Lock and motion detector have been tested with sbRIO and software  Initial programming to facilitate overall control and component communication

 Development sbRIO did not function properly and actual sbRIO delayed until mid-October › Replacement sbRIO is scheduled to arrive this week  IR Transmitter did not have a strong signal for motion detector › Found a different transmitter that provides a better LED  Fingerprint scanner has a complicated datasheet and has been tedious to wire › Care is being taken to fully understand the functionality of the scanner board and crimping terminals were purchased for ease of connection

 Made of Plexiglas  Mailbox dimensions 13 3/4” x 11 1/8” x 7 3/4”  Smaller door that folds down  Mail slot above door  Lock and motion detector above door

 9 pin connection required for operation of fingerprint scanner

 Default input and output settings ideal for this application

 No complete serial bus is available from manufacturer for connection  Connection can be constructed Crimp Housing Crimp Terminal

 Better option is to salvage already- crimped wires from another crimp housing of different size and plug them into 9-pin housing

 Implemented recommended circuitry for interface between 9-pin connector and sbRIO

 BJT Switch › High signal from sbRIO  12V across lock = OPEN › No signal from sbRIO  0V across lock = CLOSED

Locking Mechanism LabVIEW FPGA Code

 Emitter sends infrared light  Detector collects infrared light  Voltage measured after detector  No blockage, Vo = 0.2V  Blockage, Vo = 4V

Motion Detector LabVIEW FPGA Code

 Get sbRIO here and operating  Secure mailbox built  Lock override in place  Fingerprint scanner working properly  system setup to send when mail is placed in mailbox  SECO should be fully functional!