lunch box project instructor...

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LunchBoxProjectInstructorGuide

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TimeLine

Day1 IntroductiontotheLunchBoxProject

Day2 ProjectDay–StartingtoSewtheLunchBoxCircuit

Day3 HowtocodeyourLunchBox

Day4 ProjectDay–SewingtheLunchBoxCircuitandprogrammingtheLunchBox

Day5 ProjectDay–SewingtheLunchBoxCircuitandprogrammingtheLunchBox

Icons

Objectives

BellRingerQuestions

Troubleshooting

Preparation

Content

Practice

Supplies

Standards

Homework

Time

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Days1&2–TemperatureSensingLunchboxDescription:Thistemperaturesensinglunchboxprojectwill

introduceyoutocomplexcircuits,sensors,beginningprogramming,andneedlework.Youwillbeabletouseyourexistingknowledgeofcircuits,conductivity,andcraftingtocreatethisuniqueproject.Whencompleted,yourlunchboxwilluseLEDlightstotellyouwhenthetemperatureinsidehasdropped.Thestepslistedaretoactasaguide;timingmayvaryforyourstudents.

Objectives

Studentswill:

• Learnhowtouseanelectronicsensor• Learnhowtouseamicro-processor• Learnbeginningprogramming• Learnhowtosewcircuitswithconductivethread

Preparation SuppliesforStudentGroups

• Assemblematerialsintokitsforeachpairofstudents,sotheycanbeeasilypassedoutwhenreadytodotheactivity.

• SetupCodebenderonclasscomputers.• Ifneededreservecomputerlab.

• ArduinoLilyPad• TemperatureSensor• ThreeLEDlights(Red,Yellow,

Green)• MiniUSB• Battery• Conductivethread• AcomputerwithaUSB

connectionandArduinoprogrammingsoftware(Codebender)installed.

BellRingerQuestions

5Minutes• Whatcanhappeniffoodgetswarm?Foodslikesushi?ormacaronisalad?

Todaywewillstartbuildingalunchboxwithabuiltintemperaturesensor.

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Step1:LabelandColorCodeWorksheet

10MinutesThefirststepofthisprojectistolabelandcolorcodeallpartsoftheschematicworksheetintheprojectdesign.Normallyifyouweredesigningyourownproject,thefirststepwouldbetodrawoutyourprojectonpaper.Itallowsyoutovisualizeyourprojectandbegintoplanhowyouwouldgoaboutpositioningthecomponentsandsewingthemtogetherinawaythatcreatesafunctionalcircuit.However,becauseclasstimeandsuppliesarebothfinite,wehavedesignedaworkingschematicforyou.Itiscriticalthatyoudrawoutallcomponents(thiscanbetrickyasthisisathreedimensionalproject)andproperlylabelpositive,negative,andotherconnectionstoensurethatyourcircuitandprogrammedcomponentswillallworkonceyouhavecompletedsewingthemtogether.

Directions:Labelallpartsoftheworksheet.Makethepositiveandnegativewiresdifferentcolors.Pleasenote:Thetemperaturesensorgoesontheinside,soitappearsupsidedowninthisdiagram.

Step2:DrawYourSchematiconYourLunchBox

10MinutesAfteryouhavelabeledeverythingonyourworksheet,itistimetodrawyourdesignschematicontoyourlunchbox.Thiswillhelpyouplanwhereeachcomponentwillgoandhelpyouavoidcrossingwires.Becausethetemperaturesensorgoesinsidethelunchbox,youwillneed

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Sensor

Button

OnSwitch

Lights

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tofigureouthowtoplacethingsontwosidesofyourlunchbox.Ithelpstofirstdraweverythingontheoutsideofthelunchbox.Itdoesnotneedtobeaperfectpicture,butitdoesneedtoclearlytellyouwheretosewthepieces.

Directions:Drawyourschematicontheoutsideofyourlunchboxandhaveyourteacherapproveyourschematic.

Pleasenote:Designsmaychangethroughouttheproject.

Studentsshouldpeerchecktheirdrawingstoensuretheyarecorrect.

ok.

Step3:SewingontheComponents

40-60MinutesAfteryouapprovetheirdrawingsonthelunchbox,itistimetostartsewingthelunchboxcomponentsinplace.ThefirstpiecewesewintoplaceistheMicroprocessor.Wewillsewthenegativeleadintoplacefirst.Sewthroughthenegativeleadthreetimes,makingsureyourstitchesaretight.

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Step4:SewintheButton

Wearegoingtoconnectallthenegativelines.Thenegativeleadfromeverysinglecomponentconnectsononelinesowewillsewthemintoplacenow.SewfromthenegativeleadofyourMicroprocessortothenegativeleadofyourButton.Sewthroughthreetimes.Tieoffstringandcut.Noticethattheschematicdrawingandmysewingdonotlineupperfectly.Thatisok.Youmayalsonoticeanerrorinyourdrawing(likewhereyoudrewaleadconnectingisnotwhereitwillconnectnowthatyouplacedthemicroprocessor).Thatisok.Youcanadjustyourdrawingatanypoint.

Step5:SewintheLights

Rethreadtheneedle,tieaknotattheend,andsewfromthenegativeleadoftheButtontothenegativeleadofeachofthelightsinorderfromgreen(atthebottom)thentoyellow(inthemiddle)andfinallyred(atthetop).

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Step6:SewintheSensor

Nextwesewintoplacethetemperaturesensor.Thetemperaturesensorissewnontotheinsideofthelunchbox.Thismakessensebecauseitneedstoreadthetemperatureinsidethelunchbox,notoutside.Tosewonthetemperaturesensor,youwillfirstsewfromthenegativeleadoftheredlightbulbtothenegativeleadofthetemperaturesensor.Foreverythingyousewyoushouldstitchthroughitthreetimes.Thiswillensurethatyouhaveagoodconnection.Onceyouhavesewnthenegativeleadofthetemperaturesensordown,youshouldtieaknotandcutyourthread.

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Step7:ConnecttheSensortotheMicroprocessor

Nowwesewintherestofthetemperaturesensor.YouwillsewfromthepositivepinofthesensortopinnumberA4ontheLilypad.Sewandtieoffwithaknot.ThensewfromtheSpinonthetemperaturesensortopinnumberA5ontheLilypad.Tieaknotandcut.

Step8:SewinthePositiveLeads

Atthispointwewillbefollowingthesamestepstosewdownallthepositivelinesofallourcomponents.Eachcomponentneedstobesewnthroughthreetimesandtiedoffwithaknotbeforecuttingtheline.Belowisthelistofpinsthatshouldbesewntofromeachcomponent.

• ButtonStoLilypad2• Greenlightbulb(bottombulb)toLilypad9• Yellowlightbulb(middlebulb)toLilypad10• Redlightbulb(topbulb)toLilypad11

Whenallofthosearesewndown,yourlunchboxshouldlooklikethis:

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Day3–HowtoCodeYourLunchBox

Content–CodebenderVideo 10Minutes

ShowthefollowingvideotointroduceCodebender

https://www.youtube.com/watch?v=wsXDtCsIXro

CodebenderisanIDE–anIntegratedDevelopmentEnvironment.Itiswhereyouwillwriteyourprograms(calledSketchesinArduino)andwhereyouwillloadthemontotheArduinoboard.

Becausethecodebendersoftwarerunsformabrowser,yourcodewillbeavailabletoyouwhereveryouare.Wesaythecodeisin“thecloud”.Thisisconvenientforthoseofyouwhoworkvariousplaces.Plusthecodeiseasytosharewithothers.

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Activity–GettingtoKnowCodebender

30Minutes

Preparation

• WatchLogInVideoandmakesureallcomputersaresetuptouseCodebender

• WatchCodebenderNavigationvideoandmakesureyouknowhowtousethetool

• WatchSettingUptheLilyPadvideoandmakesureyouknowhowtodothis

Highlightedportionsarenotesforvideo.

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Content–CodingtheLunchBox:TheCode/*TemperatureSensingLunchBox*byBenLeduc-Mills*LilyPadSimple,hookedtoatempsensor,soundPin,button,and3*LED's-green,yellow,andred.Pressbuttontosetinitial'good'*temp(green),temp+5=yellow,temp+25=red*ModifedbyVIckiAllan6/29/16*///LEDASSIGNNMENTSintredLED=11;//pinnumberforredledintyellowLED=10;//pinnumberforyellowledintgreenLED=9;//pinnumberforgreenledintmyLED=13;inttempPin=A5;//pinfortempsensorintsoundPin=3;//pinnumberforbuzzerintbuttonPin=2;//pinnumberforbuttonintpowerPin=A4;//hardcodedasHIGHintinitTemp=0;//variabletoholdinitialtemp//NOTESThesedefinitionsareincludedinthepitches.hfile//sinceweonlyneedfourvalues,itiseasierjusttotypethemintNOTE_C4=262;intNOTE_G3=196;intNOTE_A3=220;intNOTE_B3=247;intREST=0;//medoyandnoteDurationsareusedtogether.intmelody[]={NOTE_C4,NOTE_G3,NOTE_G3,NOTE_A3,NOTE_G3,REST,NOTE_B3,NOTE_C4};//notedurations:4=quarternote,8=eighthnote,etc.:intnoteDurations[]={4,8,8,4,4,4,4,4};inttuneLength=8;floatgiveMeFarhenheit(intvalue){ //Fromdatacollectedin6/30/16 floattemperaturef=.7724*value-109.459; returntemperaturef;}

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voidsetup(){ Serial.begin(9600);//beginSerialcommunitcation pinMode(redLED,OUTPUT);//setLED'stooutput pinMode(greenLED,OUTPUT); pinMode(yellowLED,OUTPUT); pinMode(buttonPin,INPUT_PULLUP);//buttonsareinputs pinMode(tempPin,INPUT_PULLUP); pinMode(soundPin,OUTPUT); pinMode(powerPin,OUTPUT);//supplypowerfortempsensor digitalWrite(powerPin,HIGH);}voidloop(){ intbuttonState=digitalRead(buttonPin);//testforbuttonpush if(buttonState==HIGH) { digitalWrite(myLED,LOW); } else { //ifbuttonispressed,setinitialreadingasbasetemp digitalWrite(myLED,HIGH); initTemp=analogRead(tempPin); Serial.print("MyInitTemp:"); Serial.println(initTemp); } //keeptestingcurrenttemperature delay(2000); inttemp=analogRead(tempPin); Serial.print("CurrentTemp:"); Serial.println(temp); //floatfTemp=(giveMeFarhenheit(temp)); //Serial.println(fTemp); //greeneverythingok if(temp<=initTemp+5) {

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digitalWrite(redLED,LOW); digitalWrite(yellowLED,LOW); digitalWrite(greenLED,HIGH); } elseif(temp<=initTemp+25) { digitalWrite(redLED,LOW); digitalWrite(yellowLED,HIGH); digitalWrite(greenLED,LOW); } else { digitalWrite(redLED,HIGH); digitalWrite(yellowLED,LOW); digitalWrite(greenLED,LOW); playAlert(); }}//playasoundifyourlunchhaswarmeduptoomuchvoidplayAlert(){ for(intthisNote=0;thisNote<tuneLength;thisNote++) { //tocalculatethenoteduration,takeonesecond //dividedbythenotetype. //e.g.quarternote=1000/4,eighthnote=1000/8,etc. intnoteDuration=1000/noteDurations[thisNote]; tone(soundPin,melody[thisNote],noteDuration); //todistinguishthenotes,setaminimumtimebetweenthem. //thenote'sduration+30%seemstoworkwell: intpauseBetweenNotes=noteDuration*1.30; delay(pauseBetweenNotes); //stopthetoneplaying: noTone(soundPin); } delay(5000);//waitfivesecondsbeforeplayingthetuneagain.

}Day4to5–ProjectWorkDays

Activity–LunchBoxProject

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90MinutesThelasttwoclasssessionsshouldbeusedforstudentstofinishtheirsewing,coding,andanytroubleshootingtomakeafunctioningtemperaturesensinglunchbox.

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DraftReferenceWorksheetforCodeBenderListoftermsandwhattheymean

Listoferrormessagesandwhattheymean

GeneralNavigation

Searchfield Thisallowsyoutofindprojectsthatothershavewritten.Codebendermakesallthefilespublic,soyoucansearchthem.

Home Clickingonthehousegetsyoutoyourhomepage.Thereitshowsallthesketchesyouhavewritten.

ExamplesandLibraries

ThisisagreatplacetogetstartercodeorlearnthingsyoucandowithArduinos.Forexample,under“Basic”youcanseeourblinkcode.ThefadecodeisalsointerestingasitallowsthebrightnessoftheLEDtogetdimmeranddimmer,andthenreversetogetbrighterandbrighter.

GettingStarted

Thistakesyouthroughtheinstallationsteps.

KeyboardShortcuts

Ctrl+h Find/replaceCtrl+f FindCtrl+Alt+[ Reformatcode(toindentmeaningfully)Ctrl+shift+d DuplicateselectedcodeCtrl+z Undo

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LabelandColorCodeWorksheetDirections:Colorthenegativewiresredandthepositivewiresblue.

Labelthefollowingpartsofthediagram:

• Sensor• Button• Lights• LilypadOnSwitch• LilypadUSBPort

LightsLights

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