![Page 1: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/1.jpg)
Preliminary Design Review (PDR)
Team Amaze Me
![Page 2: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/2.jpg)
Team Amaze Me
• EE 296 Project (MicroMouse)
• Members– Brandon Gibu– Ah Ram Kim– John-Kalani Miyajima– Justin Ogata
• Website– http://www2.hawaii.edu/~bgibu
![Page 3: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/3.jpg)
Brief Overview of Project
• Micromouse– Autonomous robot– Find center of a 16 x 16 maze– Uses sensors to turn at corners– Uses tracking program to keep track of location
in maze– Continues to search until it finds the fastest
path to center
![Page 4: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/4.jpg)
Brief Overview (continued)
• Approaches– Use tutorials to help construct hardware to
build mouse– Create wall hugger program to randomly
maneuver through maze– Create tracking software to find fastest route to
center
![Page 5: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/5.jpg)
Block Diagram of the Mouse
Mouse Itself
Coding Circuit Hardware (Chassis)
Wall HuggerCode
Circuit Parts(battery supply,
ProtoboardsStepper motor)
Non-Circuit Parts(frame, wheels
Joints)Sensors Rabbit
Stepper MotorCodeTracking Code
*Sub-components are inter-related with each other in some way*
![Page 6: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/6.jpg)
The Chassis of the Mouse in detail
• Base frame (bottom plate)
• The Third Wheel
• Position of the protoboards, sensors, and other circuit elements
• Miscellaneous
![Page 7: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/7.jpg)
Base Frame
• Oval design
• Fold up motor mounts
• Keep the wheels closer together
• Small body frame
![Page 8: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/8.jpg)
The Third Wheel
• It is used to balance the overall weight of the mouse
• Experimented with roller caster• Problem: Possibility of dragging the mouse• Looking for a new 3rd
• wheel
![Page 9: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/9.jpg)
The Position of Circuit Elements
• Stack the protoboards on top of each other• Stack in a easy access manner• Team decided to use a top down layout b/c
of experiment– The infrared sensors (QRD1114) are “weak”– A signal roughly occurs within half an inch
distanc, based on tests
• Battery packs placed in vertical fashion near stepper motor
![Page 10: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/10.jpg)
Miscellaneous
• Try to make it look like a mouse– Either a circuit board in the shape of a mouse
or have a figure of a mouse on top
• Have adjustable arms that connect to areas of the sensors– No two mazes are exactly the same
• Find ways to protect the sensors– Ex. With a side sensor layout, use stand offs
as bumpers to prevent damage
![Page 11: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/11.jpg)
Prototype of Mouse
Front View Side View
Top View Top View
![Page 12: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/12.jpg)
Future Tasks
• Become highly familiar with the behavior of the sensors and “rabbit”
• At the same time, continue making changes on the chassis of the mouse
• Create the Algorithm
• Coding, coding, coding
![Page 13: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/13.jpg)
Potential Problems
• Balance of mouse (extra wheels ???)
• Connecting the right ports to desired input or output
• Supplying enough power to mouse
• Keeping mouse within rules of competition
• Brains of the mouse
• Time constrains
![Page 14: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/14.jpg)
Other Module Analysis-The Circuit(Stepper Motor Problem)
• Voltage drop across stepper motor circuit– Axle rotated only in one direction and stopped
when sensor sensed movement– Voltage supply showed voltage dropping by
half
• LED probe on sensor circuit– Not enough resistance resulting in LED being
very bright and decrease in voltage
![Page 15: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/15.jpg)
Decisions to be Made
• Third wheel(s): low friction pad or canster ball
• Number of sensors to be used
• Exact locations of sensors
• Design mouse into a “mouse”
• Amount of batteries we need to supply mouse
![Page 16: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/16.jpg)
Schedule and Time LineGantt Chart
![Page 17: Preliminary Design Review (PDR) Team Amaze Me. EE 296 Project (MicroMouse) Members –Brandon Gibu –Ah Ram Kim –John-Kalani Miyajima –Justin Ogata Website](https://reader035.vdocuments.mx/reader035/viewer/2022070413/5697bfb91a28abf838ca00f7/html5/thumbnails/17.jpg)
Thank You
Questions or comments?