Download - KAREL first implementation year
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KARELFirst implementation year
Mihai Agape, Project CoordinatorPalatul Copiilor Drobeta Turnu Severin
KAREL SymposiumKaterini, 14.10.2014
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This project has been funded with support from the European Commission.
This communication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.
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The Purpose of the PresentationOverview the KAREL projectShow some of the work done
SpecificationsKarelino - first controller prototype of
Karel robotSolving math problemsThe second design of Karel platform
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KAREL PROJECT OVERVIEW
General InformationKarel Project in NumbersPartnersObjectivesResults & OutcomesRobot RequirementsTasts DistributionWork Breakdown Structure
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General Information Programme: LIFELONG LEARNING
PROGRAMME Sub-programme: COMENIUS Action type: PARTNERSHIPS Action: COMENIUS Multilateral school
partnerships LLP Link No: 2013-1-RO1-COM06-29664 1 Project title: Karel - Autonomous Robot for
Enhancing Learning Project acronym: KAREL Implementation: 01.08.2013 – 31.07.2015
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Karel project in numbers
Countries: 4Partners: 4Teachers: 21Students: 50Mobilities: 96Robots: 20Lessons: 21
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WHO?Partners, pupils, teachers
1. Palatul Copiilor(Drobeta Turnu Severin, România)
2. Platon Schools (Εκπαιδευτηρια Πλατων) (Katerini, Grecia)
3. Beypazari Teknik Ve Endüstri Meslek Lisesi (Beypazari, Turcia)
4. Technikum nr 1 im. Stanisława Staszica w Zespole Szkoł Technicznych w Rybniku (Rybnik, Polonia)
Pupils (aged from 14 to 19 years old) & Teachers
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WHY?Objectives Improve teaching and learning of science and
technology using robotics as integrator O1. Apply practical math and scientific
concepts while learning to design, build, test and document KAREL.
O2. Create an interdisciplinary curriculum to use with KAREL robotic platform.
O3. Improve confidence and fluency in English and learn scientific and technical vocabulary in partners’ languages.
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WHAT?Results & Outcomes Robotics Dictionary in English and each partner’s
language. Robotics Platforms designed and manufactured
(20). Robotics Platform User Manual. Curriculum with at least 21 lesson plans, in English
and each partner’s language . At least 2 lesson plans for each of following fields: physics, biology, programming, mechanics, electronics, and robotics.
Website.
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WHAT?Robot Requirements Climb a surface with a 30 % slope. Maximum speed more than 0.5 m/s. Battery autonomy at least 2 hours. Open source programming software. Cost of raw materials less than 99 EUR. Performances better than of similar priced
robots.
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HOW?Tasks Distribution Robotic platform design, manufacture, test and
document: a) Mechanical system
Turkey b) Electronic system
Poland (input / output devices) Romania (controller, motor drivers, power supply,
communication) d) Software
Greece (codes for lessons) Romania (codes for input / output devices)
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HOW?Tasks Distribution Curriculum for robotic platform design and
document: a) Physics: Greece, Romania b) Biology: Greece c) Mechanics: Turkey, Poland d) Electronics: Poland, Romania e) Programming: Greece, Romania e) Robotics: Poland, Romania
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HOW?Tasks Distribution Pupils:
Create robotics dictionary Research, design, build, test, and program
robotic platform Test curriculum
Teachers: Design curriculum Guide pupils
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SOME OF THE WORK DONE
SpecificationsKarelino - first controller prototype of Karel robotSolving math problemsThe second design of Karel platform
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KAREL SPECIFICATIONS
Agreed at the first project meeting in BeypazariAvailable at http://sdrv.ms/170NTak
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Kick-off Project MeetingBeypazari, 10-16.11.2013
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KarelMechanical Specifications
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KarelElectrical Specifications
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KarelInput Devices
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KarelOutput Devices
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Karel Curriculum
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Karel Challenges
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KarelOther Specifications
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FIRST PROTOTYPE OF THE ROBOTIC PLATFORM
Schematic3D ViewsPCB manufacturingBoard TestingMechanics, Electronics, and Software Integration (Rybnik meeting)First Karel prototype
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Schema electrică
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First prototype - Karelino3D Top View
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First prototype - Karelino3D Bottom View
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PCB manufacturing method & materials Method = Transfer Toner System Materials = Pulsar kit (PCB Fab-In-A-
Box) http://www.pcbfx.com/
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Print the copper layer on paper using a laser printer (600 dpi)
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Prepare the single sided board using a sandpaper
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Clean the surface with a cloth
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Use laminator to transfer the toner from paper to board
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Remove the paper using water
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The copper layer is transferred to the board
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Use green foil (from Pulsar) to seal the toner
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Easily remove the green foil
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Toner before and after sealing
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Etching the board using ammonium persulfate
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The uncovered copper was removed (etched)
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Remove the toner from the board using thinner
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Drill the holes
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Test the traces for continuity and short circuits
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Use a soldering iron station to solder the components Hot Air Gun Soldering (Hot) Iron
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First solder the jumper wires
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Add the components and solder them (SMD first & THD last)
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Karelino (TOP)
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Karelino (BOTTOM)
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3D Views vs Real Board
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Karelino Testing
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Second Project Meeting,Rybnik, 06–13.04.2014
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Integration & Testing(Rybnik meeting)
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First Karel Prototype(Rybnik meeting)
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Proposed Improvements(Rybnik meeting) Integrate new blocks (e.g. Motor voltage
regulator, UART connector, Battery management system)
Make changes to the initial design (e.g. replace USB micro B connector with an USB mini B connector)
Redesign the PCB (components places and traces) according to the chassis shape
Add LEDs to show the state of Bluetooth module
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Useful Links
Drawings for manufacturing the Karelino controller http://1drv.ms/1jet3ci
Bill of materials for all designshttp://1drv.ms/1oAF8hr
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MATH PROBLEMS
Climbing an inclined planKarel Base DesignsAnimation created in GeogebraProblems Solved
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Climbing a 30 % inclined plan
A requirement which seems to be related just to the power of the motors.
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Karel Base Designs
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Karel Base
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Animation created in Geogebra
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Theoretical problems related to geometrical constraints study Ground clearance Front overhang Rear overhang
We will use the work for some Math lesson plan
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Karel Base Dimensions
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Calculus of Rear Overhang
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Calculus of Rear Overhang
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Calculus of Departure Angle
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Ramp AngleGround Clearance
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Calculate Ground Clearance (h) with Wolfram|Alpha knowledge motor
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Calculate Ground Clearance (h) with Geogebra
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KAREL SECOND PROTOTYPE(WORK IN PROGRESS)
New Approach – Two BoardsSchematicsPCB’s DesignPCB’s Manufacturing
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Karel second prototype approach 2 boards
Lower board Battery management system Motors
Upper board Controller Regulators I/O devices Motor regulators
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Karel Battery Management System - Schematic
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Board dimensions
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PCB Design
Double Side PCB laminate Components
SMD THD
Software Target3001! - version limited at 400 pins /
pads
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Lower board3D bottom view
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Lower board3D top view
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Lower boardDesign problem
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Upper board3D bottom view
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Upper board3D top view
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Upper board
What is missing from the upper board? Electronic switch
Why?
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Upper boardCopper Top Layer
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Upper boardCopper Bottom Layer
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Boards manufacturing
Older printer (Samsung) – 600 dpi resolution New printer (HP) - 1200 dpi resolution
Very good results after some tests Problems – printer driver for Windows 7
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Printing problems MS Word (doc)
Different results Picture (png)
Scaling problems
Good results with pdf files
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After we’ve learned how to do it (printing)
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After we’ve learned how to do it (printing)
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Alignment of TOP & BOTTOM Layers
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Toner Transfer problems
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Toner Transfer problems
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After we’ve learned how to transfer the toner
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After we’ve learned how to transfer the toner
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Seal the toner
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Seal the toner
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Quite good alignment between top and bottom
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Final upper board (top) with min 0.6 mm tracks (top)
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Final upper board (down) with min 0.3 mm tracks (bottom)
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Karel Second PrototypeProblems & Future Work Some circuits (e.g. for battery
management) not tested yet Some integrated circuits are not so easy
to procure (e.g. the ones made by Seiko) Possible new changes in design using
new integrated circuits (e.g. boost regulator supplied from 1 Li-Po battery with high output current capabilities)
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Karel Project MeetingKaterini, 12 – 19.10.2014
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Bibliography
Agape, Mihai. Agape, Maria-Genoveva. “KAREL Specifications”, agreed in Karel Project Meeting, held at Beypazari on 10–16.11.2013. http://sdrv.ms/170NTak
Agape, Mihai. “Karelino—One Step in Karel Robotic Platform Developing”, presentation given at National Symposium IPO-TECH, Tirgu-Neamt, 29.03.2014
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Bibliography
Agape, Mihai. “KARELController Design”, presentation delivered at Karel project meeting, held at Rybnik, 06-13.04.2014
Agape, Cristina-Maria. “KAREL Controller Manufacturing”, presentation delivered at Karel project meeting, held at Rybnik, 06-13.04.2014
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Bibliography (cont.)
*** ATmega32U4, 7766G–AVR–02/2014. Atmel. http://www.atmel.com/Images/Atmel-7766-8-bit-AVR-ATmega16U4-32U4_%20Datasheet.pdf
*** DRV8833, SLVSAR1C. Texas Instruments. http://www.ti.com/lit/gpn/drv8833.
*** LM2940, SNVS769I. Texas Instruments. http://www.ti.com/lit/gpn/lm2940-n.
*** LM1117, SNOS412M. Texas Instruments. http://www.ti.com/lit/gpn/lm1117-n
*** Bluetooth Module BTM-112. Rayson.
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Questions?