3d graphical display ararat adamian brian mcdonald tyler blair adrian williams tyler blair
TRANSCRIPT
Outline of PresentationProject objectives and purposeApproachImplementationDivision of LaborScheduleParts listRisksCritical Points
Tyler Blair
Project objectives and purposePrimary Objective:Construct an 8x8x8 RGB LED cube with a
programmable controller Controller will come with a preset demo as
well as the ability to receive custom programs from the user.
The LED cube will provide a 3D display for the programmable content and will function as a “3D Simulator”
Tyler Blair
ExtensionsThe controller will interface with computer
software such as matlab. This would allow the user to easily plot 3d functions on the cube.
The controller will have orientation modification capabilities on board. This would provide the user with the ability to zoom, shift or rotate the image.
The controller can wirelessly communicate with other wireless devices (smart-phones, computers, ect.)
Tyler Blair
Outline of the Approach Computer (or flash-drive or WiFi
shield) provides micro-controller with data file
Micro-controller communicates with the shift-registers how and which LEDs to light
Shift registers output to the 8 LED strip.
Ararat Adamian
Block Diagram
Note: The shift registers will control each plane of 8*8 RGB LED’s. Only one plane will be on at a time, the illusion of all the planes being on will be from very rapidly switching planes.
Ararat Adamian
ImplementationMicro-controller:
Atmega328 that will communicate with computer through USB
Line controller:Array of 74HC595 shift registers with latch-
able output8x8x8 LED cube:
512 “540R2GBC-CC” RGB common cathode LEDs
LEDs will be mounted on thin plexiglass
Ararat Adamian
Implementation AlternativesMicro-controller:
Atmega1280 – More I/O pins and fasterLine controller:
Max7219 matrix controller in combination with AND gates
MSP430 micro-controller for each line of LEDs8x8x8 LED cube:
512 Single Color LEDsLEDs will be mounted in tubes
Ararat Adamian
Division of LaborLED cube will be split into 8 planes of 64
LEDs (8x8), two group members will construct individual planes
One group member will design the PCB for the micro-controller and Line-controller circuits.
One group member will work on firmware to interface between computer and shift registers
Adrian Williams
Preliminary ScheduleTask Name
Order/Receive Parts
Construct 8x2x2 single-color LED plane for testing
Construct 8x8 RGB LED plane
Connect Plane to shift-registers (breadboard)
Program micro-controller to display graphics on plane
Test Functionality
Expand plane to 8x8x8 LED cube
Connect cube to shift-register/transistor array (breadboard)
Design PCB for shift-register array and micro-controller
Program micro-controller to display graphics on cube
Solder PCB and finalize box for cube
Create software (Matlab)/wireless/USB interface to cube
Create Power supply
Final Testing/Documentation
CDR
Milestone 1
Milestone 2
Expo
Adrian Williams
ScheduleTask Name Duration Start Finish
Order/Receive Parts 9 days 1/25/2011 8:00 2/4/2011 17:00
Construct 8x2x2 single-color LED plane for testing 9 days 1/25/2011 8:00 2/4/2011 17:00
Construct 8x8 RGB LED plane 5 days 2/7/2011 8:00 2/11/2011 17:00
Connect Plane to shift-registers (breadboard) 2 days 2/14/2011 8:00 2/15/2011 17:00
Program micro-controller to display graphics on plane 10 days 1/31/2011 8:00 2/11/2011 17:00
Test Functionality 10 days 2/7/2011 8:00 2/18/2011 17:00
Expand plane to 8x8x8 LED cube 15 days 2/21/2011 8:00 3/11/2011 17:00
Connect cube to shift-register/transistor array (breadboard) 5 days 3/14/2011 8:00 3/18/2011 17:00
Design PCB for shift-register array and micro-controller 5 days 2/14/2011 8:00 2/18/2011 17:00
Program micro-controller to display graphics on cube 20 days 2/14/2011 8:00 3/11/2011 17:00
Solder PCB and finalize box for cube 10 days 3/21/2011 8:00 4/1/2011 17:00
Create software (Matlab)/wireless/USB interface to cube 30 days 3/7/2011 8:00 4/15/2011 17:00
Create Power supply 10 days 3/7/2011 8:00 3/18/2011 17:00
Final Testing/Documentation 29 days 3/21/2011 8:00 4/28/2011 17:00
CDR 3 days 3/1/2011 8:00 3/3/2011 17:00
Milestone 1 3 days 3/15/2011 8:00 3/17/2011 17:00
Milestone 2 3 days 4/12/2011 8:00 4/14/2011 17:00
Expo 1 day 4/28/2011 8:00 4/28/2011 17:00
Adrian Williams
Preliminary Parts List512 RGB LEDs 5 mm24 8-bit Shift registers (74HC595)8 High Current(5A) NPN transistors1 Micro-controller (Atmega328p)1 USB to serial (FTDI FT232RL)12 1/8 plexiglass planes1 5V, 1A regulator1 5V, 5A regulatorVarious capacitors, resistors, crystals, etc.
Brian McDonald
CostQuatity Part Description Price ($)
512 RGB LEDs 5mm ~300
24 74HC595 36
8 5A NPN Transitors 20
1 Atmega328P 5
1 FT232RL 10
1 5V, 1A regulator 5
1 5V, 5A regulator 5
12 1/8" plexi-glass (~1 sq. foot each) 20
Various components 15
Total $416
Brian McDonald
RisksProject is heavily hardware orientated Time constraintsFeasibility of extensionsUnfamiliarity with WiFi technologyPower requirementsHeat dissipationLEDs are too bright or not bright enough
Brian McDonald
Critical pointsCDR
-All Parts received, PCB designed and ordered, 8x8 RBG plane constructed and tested with simple graphics, Cube is being built and Micro-controller being programmed for 3D implementation
Milestone 1-Cube is fully assembled, Micro-controller is programmed and ready to receive input from software/wireless/USB device, Power Supply is nearly finished, Cube is being tested
Milestone 2-All Hardware is completely built and tested, Software is being designed to interface with cube, USB/Wireless interfaces are being built, Documentation is being completed
Expo - awesome
Brian McDonald