ME456: Mechatronics

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ME456Mechatronics

• Prof. Clark J. Radcliffe
• Mechanical Engineering
• Michigan State University

http//www.egr.msu.edu/classes/me456/radcliff
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Prof. Clark Radcliffe

• Office 2445 Engineering
• Phone [phone]
• Email radcliff_at_egr.msu.edu
• Web http//www.egr.msu.edu/classes/me456/radcliff
  /
• Office Hours WF 1110-1200 (after class..)
• OR by appointment

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Joonho Lee, TA

• email leejoon8_at_egr.msu.edu
• Office Hours In 2200EB Lab

Tuesday 910am -1010am ?Wednesday 910am
-1010am ?Thursday 200pm - 400pm ?Friday
910am -1010am
It is our intent to provide lots of office
hours Please use them
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Do you have the knack?
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Whats Mechatronics?

• The integrated design of products and processes
  that include mechanical and electrical components
  under intelligent control.  The underlying
  products are physical in nature
  (electromechanical, hydraulic, magnetic, etc). 
  There are sensors and actuators for interfacing
  with them.   There is "intelligence" through
  imbedded computing capability.  All these
  processes are highly integrated into
  sophisticated products and processes.
• Reference National Science Foundation

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Mechatronics

• The study of systems with
• Mechanical Engineering Components
• Electronic Sensors and Electrical Actuators
• Computer Controls
• Each necessary to successful performance of the
  whole

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Syllabus

• Whats a microcontroller
• The BASIC Stamp microcontroller
• Small Design Project (individual)
• Robotics
• A typical mechanical interface
• BIG Design Project (Group)
• Learn by doing

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Grading

• Virtual Laboratory 30
• Written Check-off
• Biweekly Quiz 30
• 5 minutes each on Lab
• 1st Design Project 15
• After WAM book
• Final Project 25
• 100

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Course Operation

• Two lectures per week (2 hr)
• Come prepared to ask questions
• Demonstrations of lab material
• Two lab exercises per week (6 hr)
• Each has write-up check-off
• Use 2200EB terminals any time
• TA scheduled in lab

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1st Assignment

• Find the Webpage
• www.egr.msu.edu/classes/me456/radcliff
• Download a check-off sheet
• Whats a Microcontroller? v3.0
• Do Chapter 1 (everything you can)
• Attach all code to the check-off sheet
• Demo action to a classmate
• Turn in next Friday

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Homework Schedulehttp//www.egr.msu.edu/classes/m
e456/radcliff/ME456_Schedule.html
ME456 Mechatronics Fall 2012 C.
Radcliffe(Assignments Due 1 week after assigned)
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Computers

• Typical Computers
• CPU
• Monitor
• Keyboard Mouse
• High Speed Random Access Memory (RAM)
• Long Term Memory (HDD, Tape, CD, )
• Other peripheral devices (modem, printers, )

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Microcontrollers

• All around us without human interfaces
• Cars (as many as 20-30 today)
• Toys
• Phones
• Appliances (your microwave and VCR)
• Small for control of machines
• For connection to machines not people
• Inexpensive (2.00 - 5.00 or less)

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BASIC Stamp II

• An integrated microcontroller system
• Programmed in BASIC, Postage Stamp Size

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BASIC Stamp II

• Specifications
• 4000 BASIC Statements per second
• 16 Digital I/O pins
• Source 20 mA, Sink 25 mA
• Special purpose control routines
• 5v power supply (50 mA)
• Low power (8 mA, sleep at 0.1mA)
• RS232-USB serial programming interface
• 2k bytes program token storage

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Board of Education

• Allows easy prototyping with BSII

Wall Transformer Connection
5 volt 1.5A Regulator
9 volt Battery Connector
RC Servo Connections
5v Power Supply Connection
USB Interface To PC
Circuit Prototyping Area
BASIC Stamp II Microcontroller Socket
Digital I/O Connector
Reset Button
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BOE Breadboard
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Application Kits

• BoeBot

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Board of Education

• Demonstration
• Lets Make
• Flashing Lights

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Design Flashing Lights
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Circuit Model and Analysis

• How big should resistors be?
• Limit current to 10 mA

• Assume
• no voltage drop across LED
• P0 and P1
• - go to ground
• - have zero input impedance

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Create Flashing Lights Hardware
connection to 5v (Vdd)
Note Polarity Of LEDs
(2) 470 Ohm Resistors (yellow, violet, brown, )
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Create Flashing Lights Software
'Program Demo Listing written by C.
Radcliffe 'Define Variables and
Constants '---------------------------------------
---- left_led con 0 'left LED drive
pin right_led con 1 'right LED drive
pin blink con 100 'blink time
(msec) '------------------------------------------
- 'Main Program '---------------------------------
---------- flash 'Start of Program high
left_led 'turns left led off low
right_led 'turns right led on pause blink 'wait
for ltblinkgt ms low left_led turns left led
on high right_led 'turns right led off pause
blink 'wait for ltblinkgt ms goto flash repeat
the blink
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Flashing Lights Solution

• Circuit Hardware
• Plus
• Control Software

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Tonight at 800pmMSU vs. Boise State