senior design i project
DESCRIPTION
Senior Design I Project. Spring 2007. Overview. Objectives Constraints Possible Components. Project 2 Objectives. To Design and build an audio processor Should be PC controlled Should perform Level Compression ALC (automatic Level Control) At least three band equalization Easy To Use - PowerPoint PPT PresentationTRANSCRIPT
Senior Design I Project
Spring 2007
Overview
Objectives Constraints Possible Components
Project 2 Objectives
To Design and build an audio processor Should be PC controlled Should perform
Level Compression ALC (automatic Level Control) At least three band equalization
Easy To Use Economic Simple Circuitry
Compression
PC Interface
Interesting Links
http://www.soundonsound.com/sos/dec00/articles/adcompression.htm
http://www.barryrudolph.com/mix/comp.html ftp://ftp.dbxpro.com/pub/PDFs/WhitePapers/Co
mpression%20101.pdf http://www.microchip.com/stellent/idcplg?IdcService=
SS_GET_PAGE&nodeId=1406&dDocName=en010007 http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAG
E&nodeId=1406&dDocName=en023602 http://www.sparkfun.com/commerce/product_info.php?products_id
=762
Project 2 Objectives
To Design and build a MicromouseShould be able to find its way through a mazeMaze details to be disclosed soon
Easy To Use Economic Simple Circuitry
Micromice
Interesting links
http://www.ece.ucdavis.edu/umouse/home/ http://www.ewh.ieee.org/r6/lac/students/
microm/MMRULES.html http://www.robots-dreams.com/micromouse/
index.html http://www.robot-fan.net/modules/x_movie/
x_movie_view.php?cid=1&lid=2
Our Maze
Square size 6.5 Matrix Size 13x6 or 13x10
Projects Distribution
The number of teams working in the different projects must not differ for more than one
Constraints
The projects will be based on the Microchip dsPIC30F4011 or dsPIC30F4013 microcontrollers
Project Should be completed by the presentation date indicated in the syllabus
Teams should be composed of three or four members. If there is a single person without team I will assign that person to a team of my choice.
Extra Credits
There will be extra credits for:First fully functional projectBest Accomplished project
Extra credit can range from 1 to 5 absolute points
Components: GP2D120
Sharp GP2D120 Analog Distance Sensor http://www.roboticsconnection.com/pc-23-
4-sharp-gp2d120-ir-sensor.aspxFeatures Less influence on the color of reflective objects, reflectivity Line-up of distance output/distance judgment type
Distance output type (analog voltage) GP2D120 Detecting distance 4 to 30cm
Recommended, buy the interconnect cable GP2D120.pdf $8.99
Components: GP2D120
Components: GP2D120
14,000 lx
Position Determination
Stock#: 605-0005Melexis 90217 Hall-Effect SensorPrice: $4.95
3/8 diameter, 1/8 thick NdFeB plate magnet
Price: $0.79
Position Determination
1. Thru Distance Sensors2. Hamamatsu P5587
Wheel Encoder Modules + 30 Spoke Wheel 1.5” Encoder Disks or similar
3. http://www.roboticsconnection.com/c-4-robot-sensors.aspx
4. Combnation: $31.95
Position Determination
ACE 128 Absolute Encoder
http://www.newark.com/jsp/Passives/Encoders/BOURNS/EAW0D-B24-AE0128/displayProduct.jsp?sku=04B9184
$10.75
Position Determination
Incremental Encoder ECL1J-B24-BC0024 —
BOURNS http://www.newark.com/
jsp/Passives/Encoders/BOURNS/ECL1J-B24-BC0024/displayProduct.jsp?sku=04B9197
$4.26
Type of Motors
“DC motors are widely used, inexpensive, small and powerful for their size. Reduction gearboxes are often required to reduce the speed and increase the torque output of the motor. Unfortunately more sophisticated control algorithms are required to achieve accurate control over the axial rotation of these motors. Although recent developments in stepper motor technologies have come a long way, the benefits offered by smooth control and high levels of acceleration with DC motors far outweigh any disadvantages.”
Stepper Motorshttp://www.cs.uiowa.edu/~jones/step/
Variable Reluctance Unipolar
Winding 1 1001001001001001001001001
Winding 2 0100100100100100100100100
Winding 3 0010010010010010010010010
Winding 1a 1000100010001000100010001 Winding 1b 0010001000100010001000100 Winding 2a 0100010001000100010001000 Winding 2b 0001000100010001000100010
Stepper Motorshttp://www.cs.uiowa.edu/~jones/step/
Bipolar Bifilar
Terminal 1a +---+---+---+--- ++--++--++--++--
Terminal 1b --+---+---+---+- --++--++--++--++
Terminal 2a -+---+---+---+-- -++--++--++--++-
Terminal 2b ---+---+---+---+ +--++--++--++--+
Stepper Torque
Stepper motors have the greatest torque at slower speeds and less torque as the motor speeds up. If the motors are started at full speed they will not move the mouse at all, the motors will simply "twitch" and the rotor will not rotate to the next position. In order to move the mouse, the motors must be accelerated to top speed. Likewise, in order to stop the mouse, the motors must be slowed down. A graph of the stepper's speed would look like this:
http://www.micromouseinfo.com/introduction/steppers.html
Where to buy?
http://www.jameco.com/webapp/wcs/stores/servlet/KeywordSearchResultView?langId=-1&storeId=10001&catalogId=10001&searchType=k&searchValue=stepper&categoryId=351580&rscount=76
http://www.allelectronics.com/cgi-bin/category/400600/Stepper_Motors.html
Digital Potentiometerhttp://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1335&dDocName=en025082
They don’t have a DIP package for the up/down versions.
I would suggest using the SOIC package and soldering some cables to the IC
Components: 28015
Parallax's new PING)))™ ultrasonic sensor provides a very low-cost and easy method of distance measurement. This sensor is perfect for any number of applications that require you to perform measurements between moving or stationary objects.
The PING)))™ sensor measures distance using sonar; an ultrasonic (well above human hearing) pulse is transmitted from the unit and distance-to-target is determined by measuring the time required for the echo return.
http://www.parallax.com/detail.asp?product_id=28015 28015.pdf
Components: 28015
Features Supply Voltage: 5 VDC Supply Current: 30 mA typ; 35 mA max Range: 3cm to3 m( 1.2in to 3.3yrds) Input Trigger: positive TTL pulse, 2 uS mm, 5 uS typ. Echo Pulse: positive TTL pulse, 115 uS to 18.5 mS Echo Hold-off: 750 uS from fall of Trigger pulse Burst Frequency: 40 kHz for 200 uS Burst Indicator LED shows sensor activity Delay before next measurement: 200 uS Size: 22 mm H x 46 mm W x 16 mm D (0.84 in x 1.8 in x 0.6 in
$24.95
Components: 28015
Components: 28015
Components: 28015
Components: Memsic 2125 Dual-axis Accelerometer The Memsic 2125 is a low cost, dual-axis thermal accelerometer
capable of measuring dynamic acceleration (vibration) and static acceleration (gravity) with a range of ±2 g
Key Features of the Memsic 2125: Measure 0 to ±2 g on either axis; less than 1 mg resolution Fully temperature compensated over 0° to 70° C range Simple, pulse output of g-force for X and Y axis Analog output of temperature (TOut pin) Low current operation: less than 4 mA at 5 vdc
http://www.parallax.com/detail.asp?product_id=28017 Memsic 2125.pdf $ 29
Components: Memsic 2125 Dual-axis Accelerometer How It Works Internally, the Memsic 2125 contains a
small heater. This heater warms a "bubble" of air within the device. When gravitational forces act on this bubble it moves. This movement is detected by very sensitive thermopiles (temperature sensors) and the onboard electronics convert the bubble position [relative to g-forces] into pulse outputs for the X and Y axis.
The pulse outputs from the Memsic 2125 are set to a 50% duty cycle at 0 g. The duty cycle changes in proportion to acceleration and can be directly measured by the BASIC Stamp. Figure 2 shows the duty cycle output from the Memsic 2125 and the formula for calculating g force.
Components: IR Transmitter Assembly Kit FEATURES
D= 940 nm Chip material = GaAs Package type: T-1 (3mm) Matched Photosensor: QSC112 Narrow Emission Angle, 24° High Output Power Package material and color: Clear, peach tinted plastic
http://www.parallax.com/detail.asp?product_id=350-00017 QEC112.pdf $2.40
Components: IR Transmitter Assembly Kit
Components: PNA4601M Infrared Receiver
Features Extension distance is 8 m or more External parts not required Adoption of visible light cutoff resin
For infrared remote control systems $3.95 http://www.parallax.com/detail.asp?pr
oduct_id=350-00014 PNA4601M.pdf PNA4601Mapp.pdf
Components: PNA4601M Infrared Receiver
Components: PNA4601M Infrared Receiver
Components: PNA4601M Infrared Receiver
Componebts: Infrared Transistor #: 350-00018 A phototransistor is a
light-sensitive device similar to other transistors which act as current amplifiers, except that it converts visible light, or photons, to current which is then amplified.
http://www.parallax.com/detail.asp?product_id=350-00018
$1.29
http://www.robotroom.com/HBridge.html
Components: TC4421/TC4422
Features High Peak Output Current: 9A Wide Input Supply Voltage Operating Range: 4.5V to 18V High Continuous Output Current: 2A Max Fast Rise and Fall Times:
30 ns with 4,700 pF Load 180 ns with 47,000 pF Load
Short Propagation Delays: 30 ns (typ) Low Supply Current:
With Logic ‘1’ Input: 200 µA (typ) With Logic ‘0’ Input: 55 µA (typ)
Low Output Impedance: 1.4 (typ) Latch-Up Protected: Will Withstand 1.5A Output Reverse Current Input Will Withstand Negative Inputs Up To 5V Pin-Compatible with the TC4420/TC4429 6A MOSFET Driver Space-saving 8-Pin 6x5 DFN Package http://www.microchip.com/stellent/idcplg?
IdcService=SS_GET_PAGE&nodeId=1335&dDocName=en010665
Components: TC4421/TC4422
Components: TC4421/TC4422
Components:Parallax (Futaba) Continuous
Rotation Servo: 900-00008 Technical Specifications
Power 6vdc max Average Speed 60 rpm, Note: with 5vdc and no torque Weight 45.0 grams/1.59oz Torque 3.40 kg-cm/47oz-in Size mm (L x W x H), 40.5x20.0x38.0 Size in (L x W x H), 1.60x.79x1.50 Manual adjustment port www.parallax.com continuous rotation
$6.95 http://www.parallax.com/detail.asp?product_id=900-00008 crservo.pdf
Components:Parallax (Futaba) Continuous
Rotation Servo: 900-00008
Overview
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