In-Ex Akit-BASIC Stamp2SX User manual

Akit-BASICStamp2SX : BASICStamp2SX Activitykit l1
1.KitContents
In standardpackage of Akit-BASICStamp2SXinclude:
1. i-Stampboard x1
2. AX-2SXactivityboard x1
3. CX-232 serialportcable x1
4. SLCD16x2 SerialLCD module x1
5. Uni-polar steppermotor x1
6. Documentation x1
7. CD-ROM x1
Torunthisactivitykityou’llneed:DCadaptor+9Vdc500mAorhigher
(maximum +16Vdc)
2. Kitfeatures
2.1i-Stamp microcontrollerboard
lWorkabilitiesarecompttiablewithBASICStamp2SXmodule(BS2SX-IC)
l50 MHzclockfrequency.Operateupto10,000 P-BASICcommand/second
l16KBytememory,separate8sections,2KByte/each,erasable100,000+times
l32 byteRAMwith64 byteScratchpadRAM
lConsumption 65mAinfull operation and200mAinsleepmode
lConnectingtoPC’sserialportforprogramminganddebuging
l16 I/O,freedomseparetedworkorsetingroupsfrom4,8and16 pins
l30mA/30mAsource/sinkcurrent. Maximum60mA/60mAsource/sinkcurrentper
8-pinsgroups(P0-P7/P8-P15)
lI/OpincandriveLED (withcurrentlimitresistor) and6Vservomotordirectly
lLED power status
lBoardsizes1.7"x1.2"
lDevelopwithBASICStampEditorprogram
Akit-BASIC Stamp2SX
BASICStamp2SX/i-StampmicrocontrollerActivityKit

2lAkit-BASICStamp2SX : BASICStamp2SXActivitykit
2.2AX-2SX Activtyboard
lSupporti-Stamp
lIn-systemprogrammingandDebuggeingviaserialport
l8-LED display
lRelaydriver withrelay12V
lUni-polarStepper motordriver share withLED on P0-P3ofi-Stamp
lVoice-coil 8Wspeaker
lLDRlightsensorwithRCcircuit
l4-Pushbutton switchwithresistorpull-up
lSerialinterfaceconnector(P15)
lUsewithDC adapter 12V500mA(notincluded)
lPolarityprotection circuit
2.3SLCD16x2 SerialLCD
lLCD 16 characters2lines
lSerialInputRS-232 orInvert/Non-invertTTL/CMOS logiclevel.
l28 byteFIFObuffer, baudrate2400 or9600 bpsselectable, 8bitdata,no parity,
1stopbit.
l1/8 or1/16 Dutycanbeselectedbyjumper.
lScott Edwards'sLCD SerialBackpack®commandcompatibleaddition with
ExtendedCommandthatmakeLCD controleasier.
lEasytointerfacewithmicrocontroller suchasBASICSTAMP®.
lOperation with5to12 V.DC supply(5.1V.zener build-in)
3.Introductiontoi-Stampmicrocontroller
i-Stamp istheemulatorofBS2SX-ICmodule whichdesignedbyInnovativeExperiment
Co.,Ltd., Thailandunder co-operativewithParallaxInc., manufacturer BASICStampfrom
USA.
ThesizeissimilattoBS2SX-ICandcanputon 24 pinssocket.i-StampuseBASICStamp
interpreter liciencedbyParallaxInc.. Somakesure thati-Stampabilityiscompattible.
Figure 2,showsi-Stampschematic.It’ssimilartoBS2SX-IC.Theonlyonedifferentisi-
Stampno Vinpinbecauseinsidei-Stamphasnot+5Vregulatorcircuit.

Akit-BASICStamp2SX : BASICStamp2SX Activitykit l3
PIN NAME FUNCTION
Tx/SOUT1 Serial Out:
connects to PC serial portRXpin
(DB9pin2)forprogramming.
Rx/SIN2 Serial In:
connects to PC serial portTXpin
(DB9pin3)forprogramming.
ATN3 Attention:
connects to PC serial portDTRpin
(DB9pin4)forprogramming.
VSS/GND4 System ground: (same aspin23)
connects to PC serial portGND
pin(DB9pin5)forprogramming.
P0-P155-20 P0-P15 General-purposeI/Opins
+5V21 5-voltDC input
RES22 Resetinput/output:goeslow
Vss/GND23 System ground
N/A24 Notuse
i-Stamp
24
23
22
21
20
19
18
17
16
15
14
13
GND
RES
+5V
P15
P14
P13
P12
P11
P10
P9
P8
TX
RX
ATN
GND
P0
P1
P2
P3
P4
P5
P6
P7
1
2
3
4
5
6
7
8
9
10
11
12
Figure1-1 i-Stamp’sPinassignmentandfunction
i-Stampboardsizeis
1.7x1.2 Inches
TheheartofcircuitisIC1whichSX-28ACmicrocontroller.Insidethismicro
controller containsP-BASIC2SXinterpreterfirmwarer.TheusershavealreadywrittenP-BASIC.
Theprogramisdownloadedintoi-Stampviaserialport. SignelisconvertedtoTTLlevelby
R2-R10 andQ1-Q3.Q1sendsdatafromIC1toPC’sserialportviapin2(RxD).Q2converter
inputleveltosendtoIC1.Q3useforreceivingresetsignalfromcomputer toresetIC1.It
meansresetsystemtogether.However,theuserscanresetthesystembyexternalswitch
whichconnecttoRESETpin.
OpearingprogramsavetoIC2whichis16KByteserialEEPROM24LC128.Itmeans
IC2isthesystemmemory program. Ifit’snotcorrect,IC1will noticetotheusersknowthe
result.
IC1receiveclocksignalfromCR150MHzceramicresonator.i-Stamp’sportuse
IC1’spin10-25.ItcallsP0-P15 insteadfordefindingeasier.
i-Stampneed+5Vandatleast65mAsupplyfromregulator.Forreducingboardas
small aspossible,itexcludepower supply.Theusersjustconnect+5Vandgroundtoi-
Stampandworkon it.

4lAkit-BASICStamp2SX : BASICStamp2SXActivitykit
4. InsideAX-2SXBASICStamp2SXActivityboard
AX-2SXistheactivityboardthatprepare manyexternalcomponentstointerface
withi-Stamp microcontrollerforlearningandexperiment.You caninterfaceallcomponents
veryeasy.WithsimplePBASICprogrammingcanhelpyouunderstandingabout
microcontroller interfacingconcepts.
Figure 3showsthephysicalofAX-2SXboardandschematicshowninfigure 4. SK1is
24-pinfemaleIDCsocketisusedforsupporti-Stamp.+5Vregulatedvoltagesupplyis
connectedtopin21 ofi-Stamp. Atpin22 connectwithRESETswitchtoresettheoperation
ofi-Stamp. Forinterfacingwithserialport,usepin1to4connectwithpin2,3, 4and5ofDB-
9serialconnector.Theseinterfaceare usefordownloadinganddebuggingviaDebug
TerminalinBASICStampeditorsoftware.
Thedetail ofeachinterfacingcircuiton AX-2SXboardcandescribeas:
i-Stamp
RS-232
DOWNLOAD
OFF
P7P6P5P4P3P2P1P0
STEPPER
MOTOR
LDR
RELAY
P13
RELAYOUT
P11 P10 P9 P8
SERIALDATA
+5V.
P15
GND
SWITCHINPUT
P12
SOUND/FREQ.
OUTPUT
P14
RC-PORT
AX-2SX
BASICStamp
ACTIVITY
BOARD
LED OUTPUT
RY.
RESET
DCINPUT
ON
NC
C
NO
Figure3AX-2SXboardoverlay; eachinterfacecircuitwithi-Stampwill detail.
Suchas8-LEDoutputslabelwithP0toP7portpinofi-Stamp.

Akit-BASICStamp2SX : BASICStamp2SX Activitykit l5
+5V
C5
47/16V
IC2
7805
C3
220/25V
J1
DC INPUT
9-12V
C6
0.1/50V
C4
0.1/50V
D1-D4
1N4001 x4
K5
DC
INPUT
+
-
S6
ON/ OFF
24
23
22
21
20
19
18
17
NC
GND
1
2
3
4
5
6
7
8
RxD
ATN
GND
TxD
9
10
11
12
16
15
14
13
K1
DB-9
FEMALE/PCB
DOWNLOAD
2
3
4
5
6
7
RST
+5V.
P15
P14
P13
P12
P11
P10
P9
P8
P0
P1
P2
P3
P4
P5
P6
P7
R1-R8
470
LED8-LED1
PHASEA toDCOIL
D ABC
+V
NC
COM
NO
S5
RESET
+5V
S1-S4
R9-R12
220
SP1
SPEAKER
+5V
RP1
4k7*4
LDR1
C2
0.1mF
50V
+5V
P15
+5V.
GND
4 3 2 1
9
16151413 10
7
8
K2
STEPPER
MOTER
IC1
ULN2003
+V
SK1
i-Stamp
R13
1k5
LED9
RY
STEPPERMOTER
RY1
RELAY12V
K3
RELAY
OUTPUT
K4
SERIAL
DATA
R14-R15
220
R15
C1
10mF50V
R14
CONTACTRATING
250V 5A
+V
Figure4AX-2SXboardschematic
4.18-LEDoutputs
All 8-LEDswill be connectedwithP0toP7ofi-Stampviacurrentlimitresistor.All LED
wil operateatLogic“1” oractivehigh.
4.2Steppermotordriver
AtP0toP3ofi-Stampshare withdriveLED andconnectwithULN2003 driver IC.
ULN2003 willbeusefordrivingauni-polarstepper motor. ULN2003 contains7open-collector
inverter.ItsinpurcanacceptTTLlogicandoutputcandrivehighcurrentloadover +5V.
Maximumis+30V500mAper output.InAX-2SXwill connectwithauni-polarstepper motor.
Themotorsupplyvoltage getsfromDC adaptor.
Drivingthestepper motorisnotdifficult. Sendd logic“1” fromi-Stampport(P0-P3) to
inputofULN2003.After thatULN2003 will invertlogicto“0”.Itcausethecurrentdrawinto
themotor’sphasethatconnectwithULN2003 output.Theshaftofmotorwill spinone
step.Ifall phaseare receivedthecontinuoussignal,stepper motorspinscontinuous.

6lAkit-BASICStamp2SX : BASICStamp2SXActivitykit
4.3Sounddriver
AX-2SXboardprovidesa100mW8Wspeaker andconnectwithP12ofi-Stamp.i-
StampcanouttheaudiosignalcoupleviaC2;10mF capacitortodrivethisspeaker.This
circuitdemonstratethei-Stamp’sperformanceaboutdrivingasmall speakewithout
externalamplifier circuit
4.44-Inputswitches
AtP8toP11are assignedtoInputports.Theyareconnected4ofpush-button
switchesandconnected4pull-upresistortodefinelogic“HIGH”innormalstate.Ifany
swithispressed, thatportwill beconnectedtoground. Logic“0” will appliedatthatport.
i-Stampcanreadport’statuswithprogramming.
Addition atP8toP11 haslimit-currentresistor220W(R9toR13) forprotectingi-Stamp’s
port.Normallyi-Stamp’sportcanconnecttoGrounddirectlybutmustsettoINPUTonly.
TheR9toR13 are usedtoprotectportdestroyincasesettinganyporttooutputand
switchispressed.Ifnotprotected,i-Stamp’sportwill bedestroy.
4.5Relay driver
P13 ofi-StampisconnectedwithULN2003 input(pin7).OutputofULN2003 (pin10)
isconnectedwith12Vrelay. i-Stampcanactivetherelayoperation withsendlogic“1” to
pin7ofULN2003.ULN2003 will invertlogictoactivaterelay.Relay’scoil havecurrent
draw.LED9lightsuptoindicatestheoperation andrelaycontactwill switchfromNCto
NO.Relaycontactratingis220Vac5Aandsuitabletodrive600Welectricload.User can
connecttheelectricapplianceloadtocontrolledbyi-Stamp.
4.6LDRcircuit
Onefeature ofi-Stampisthesimpleanalogsignalprocessingwithspecialcommand;
RCTIME.ThiscommandconceptisRCtimeconstantoperation.InAX-2SXboard,useLDR
(LightDependentResistor)and0.1uFcapacitor.They are connectedtoP14 ofi-Stamp.
R14 resistorisconnectedwithP14 inseriesfor2purposes.OneisassistancetheRC
operation start.Another function iscurrentlimitation fromreversecurrentofcapacitor
rechageing.
4.7Serialinterface port
AX-2SXboardassignP15 ofi-Stamptoserialcommunication porttoextension.The
externaldevicethatconnectatthisportmusthaveserialcommunication suchasthe
SerialLCD,SerialkeypadorSerialRealtimeclockmodule.Serialinterfaceconnectoruse
3-pinsheader.Theassignmentportfromleftis+5V,P15 orsignalandGround.Sameany
previousport,P15 hasacurrent-limitresistorforprotection.

Akit-BASICStamp2SX : BASICStamp2SX Activitykit l7
Theserialcommunication devicethatrecommendedforAX-2SXincludeSLCD16x2
SerialLCD (includedthisactivitykit),ZX-44 SerialKeypad4x4andZX-SERVO16 Servocontroller
board.
4.8Powersupply
AX-2SXboardcangetthevoltage supplyfrom2ways;fromDC adaptorjackK2
andTerminalblockK3. DiodeD1toD4connectasbridge rectifier circuitforpreparingthe
polarityofvoltage supply.ThiscircuithelpAX-2SXboardsupportall DC adpator’spolarity.
C3capacitorisusedforfilteringtheinputsupplyvoltage more smoothandC4capacitor
reducethehighfrequencynoise.Voltage atthispointiscalled+V.ItisusedforStpper
motordriveandRelaydriver circuit.
+Vvoltagewill beregulatedto+5VwithIC27805.At7805 outputconnectC5
capacitorfortransientresponseoperation.
5. Softwaretools
i-Stampcanworkon AX-2SXboardwithBASICStampeditorsoftware V2.2.6orhigher.
Downloadfree ofcharge at www.parallax.com.
User cansee thesoftware installation,howtouseandPBASICcommandreference
fromBASICStampeditormanualV2.0orhigher.Free downloadat www.parallax.com.

8lAkit-BASICStamp2SX : BASICStamp2SXActivitykit
Activity1: Getting startwithAkit-BASICStamp2SX
Purpose
Introducetohowtousei-Stampmicrocontroller boardwithAX-2SXActivityboard
andhowtointerfacewithcomputer.
Partlist
1.i-Stamp
2.AX-2SXActivityboard
3.CX-232 Serialportcable
4. Personalcomputer thatinstall BASICStampEditorV2.2.6orhigher andafree serialport.
Ifcomputer providesonlyUSBport,require USBtoRS-232 serialportconverter.TheUCON-
232Sisrecommended.
Procedure
1.1Puti-Stamp into24-pinfemaleheader onAX-2SXActivityboard.Mustputtheright
direction followinginfigure A1-1.
1.2ConnectserialportcablebetweenPC’sserialportandAX-2SXboardFollowingthe
figure A1-2.IfuseUSBtoSerialportconverter,mustconnecttheconverter withUSBport
andconnecttheserialportcablebetweentheconverter andAX-2SXboardinstead.
FigureA1-1 Show thefittingi-StampintoAX-2SXActivityboard
Fiti-Stampon24-pinfemale
headeronAX-2SXboard.The
concavesidemustturnto
theleftsideoftheactivity
board

Akit-BASICStamp2SX : BASICStamp2SX Activitykit l9
FigureA1-2 InterfacingofAX-2SXActivityboardwithcomputer’sserialport
i-Stamp
RS-232
DOWNLOAD
OFF
P7P6P5P4P3P2P1P0
STEPPER
MOTOR
LDR
RELAY
P13
RELAYOUT
P11 P10 P9 P8
SERIAL DATA
+5V.
P15
GND
SWITCHINPUT
P12
SOUND/FREQ.
OUTPUT
P14
RC-PORT
AX-2SX
BASICStamp
ACTIVITY
BOARD
LEDOUTPUT
RY.
RESET
DCINPUT
ON
NC
C
NO
ายเชื่อมตอ
พอรตอนุกรม
ดานตัวผู
ายเชื่อมตอ
พอรตอนุกรม
ดานตัวเมีย
ตอไปยังพอรตอนุกรม
ของคอมพิวเตอร
1
6
2 3 4
5
7 8
9
16
2 3 4
5
7 8
9
คอนเน็กเตอร DB-9 ตัวเมีย
คอนเน็กเตอร DB-9 ตัวผู
ายมัลติคอร 9 เน
1.3PlugDC adaptorforapplyingthesupplyvoltagetoAX-2SXActivityboard.Open
BASICSTampEditorsoftware.
1.4Checkthecommunication betweeni-StampandBASICStampEditorsoftware bypress
CtrlIkey orclickatIdentifybutton orenter RUNmenuthenselectIdentify
Ifallcorrect,Identificationboxwill appearandinformtheversion of
PBASIC2SXchipfollowingthefigure A1-3.ObserveCOM1box,itwill showBASICStamp2SX
V1.x(xisanynumber).Nowi-StampcanconnectwithBASICStampEditorsoftware.
1.5Makethesimpleprogramtotesting.
1.5.1SelectBASICStamptypebyBASICStampdirective. Enter Directivemenuand
selectStamp àBS2SXfollowingfigure A1-4. Themessage ‘{$STAMPBS2SX} appearson first
line.Press Enter key.
1.5.2Still stayatDirectivemenu.SelectserialportbyPort àCom1(oranyCom
portthatconnect)followingfigure A1-5.Messge ‘{$PORT COM1} will appearatsecond
line.Pess Enter.

10 lAkit-BASICStamp2SX : BASICStamp2SXActivitykit
FigureA1-3Displaytheidentification
ofPBASIC2SXfirmwareoni-Stamp
board.If connect completeatDevice
Typecolumnmustshownameof
BASICStampandVersion. FigureA1-4SelectionBASICStamp
directive.(select BS2SX)
1.5.3AtDirectivemenu,selectversion ofPBASIClanguage byPBASICàVersion2.5
followingfigure A1-6.Message ‘{$PBASIC2.5} appearatthirdline.Press Enter
1.5.4Atprogrammingarea,type debug“welcome”.Thisshortcodei-Stampsend
massage welcome todisplayon DebugTerminalofBASICStampEditorsoftware.Press
Enter.
1.5.5ClickRunbutton.DebugTerminalwill appearsandshowmessage “welcome”
on thescreenfollowingfigure A1-7
1.5.6Press RESETswitchon AX-2SXboard.Programwill showthesamemessage at
Termialsceen.BecauseRESETswitchpressingmeansre-starttheprogramrunning.
1.5.7Ifdialogueboxinfigure A1-9appears, itmeans Thecommunicationbetween
computerandi-Stamp fail.Check theserial portcableandfree statusof serial port. Inthe
figure A-10 showserialportcableconnection diagram.
FigureA1-5 Shows“How toselect and
usePortdirective” .
FigureA1-6Shows“Howtoselect
PBASIC2.5directive”.

Akit-BASICStamp2SX : BASICStamp2SX Activitykit l11
FigureA1-8 TheDebugTerminalscreenshow thetestingmessagewelcome.
Itmeansi-Stampcanworkready.This terminalwill appear everytimethat
useDEBUGcommand.
1.6All experimentPBASICcodecanstore in.bsx filename.
FigureA1-9 showsError boxonscreen. Itmeanssoftwarecannotdetect i-
Stamp.Mustback tocheck serialportcableagainandcheck FREE serialport

12 lAkit-BASICStamp2SX : BASICStamp2SXActivitykit