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Learn all about the electronic parts used in robots  

 
 

 

39 

controlling the left motor. Basically it is amplifying the weak signals from the light sensor or 

phototransistor, and sends them to the motors for controlling the robots movements. 

 

Know your symbols 

 

The different types of components we have encountered each have a symbol to represent them 

in a 

circuit diagram

. Please see the actual circuit diagram of Hydrazoid to see where the 

symbols are located 

Resistor 

 

Preset Resistor 

Non-electrolytic 

capacitor 

Electrolytic 

capacitor 

LED  - the arrow 

shows the direction 

that conventional 

current can flow  

 

Transistor - the 

arrow shows the 

direction that 

conventional current 

flows 

 

Sound sensor 

Battery 

 

Summary of Contents for TRIBOTZ MR-1005

Page 1: ...ton Road Isleworth TW7 5ER UK iBOTZ Division Instruments Direct Ltd 10 Brent Drive Hudson MA 01749 USA UKVER2 TRIBOTZ Build your own robot Model No MR 1005 Manufactured by iBOTZ Div of Instruments Direct Ltd The Open University is based at Milton Keynes in the UK ...

Page 2: ...ries in the correct polarity Nevershortcircuit disassemble heat ordisposeofbatteriesina fire Whentherobotisnotinusethebatteriesshouldberemoved If the batteries or robot become wet remove the batteries from the hold and dry the robot Donotmixoldandnewbatteries Donotmixalkaline standard carbon zinc orrechargeable nickel cadmium batteries We recommend the use of alkaline batteries for extended life R...

Page 3: ...nctional manipulator designed to move materials parts tools or specialized devices through various programmed motions for the performance of a variety of tasks According to the Webster dictionary An automatic device that performs functions normally ascribed to humans or a machine in the form of a human Webster 1993 A brief review of robot development is important as it puts the current machines an...

Page 4: ... Cincinnati Milacron Corporation The robot is called the T3 The Tomorrow Tool 1974 Professor Scheinman the developer of the Stanford Arm forms Vicarm Inc to market a 6 version of the arm for industrial applications The new arm is controlled by a minicomputer 1976 Robot arms are used on Viking 1 and 2 space probes Vicarm Inc incorporates a microcomputer into the Vicarm design 1977 ASEA a European r...

Page 5: ...t their first machine in 1958 Their initiative was a great deal ahead of its time according to Engelberger Unimation did not show a profit until 1975 The first industrial robot saw service in 1962 in a car factory run by General Motors in Trenton New Jersey The robot lifted hot pieces of metal from a die casting machine and stacked them Japan by comparison imported its first industrial robot from ...

Page 6: ...hen unscrew half a turn repeat this until the screw is in flush to the surface Tightening of nuts and screws Make sure nuts are tightened securely to the bolts if not they may work loose and cause the robot to malfunction Also make sure the nuts are not too tight and cause the parts to function incorrectly Screw sizing The size of the screws is expressed by the thickness and length A screw marked ...

Page 7: ...t Battery cover Gear box holder Dome Bottom case CASTOR CASTOR STOPPER CASTOR TIRE Castor SET FRONT APRON REAR APRON WHEEL GEAR BOX HOLDER WHEEL SET Tyre Tire Set Please Note We have supplied extra castors and caster stoppers than you need ...

Page 8: ...Completed castor section Castor tire Castor 1 Assembling the castor 2 Assembling the castor and the bottom case Please Note This section is now completed by the factory 12 Motor gear box Bottom case section Motor gear box Gear box holder Gear box holder Screws B 4pcs Motor wire 4pcs Completed wheel section Completed Bottom case and motor gear box section 3 Assembly of motor gear boxes and bottom c...

Page 9: ...se and PC board B section PC board A Screw A 3 pcs 10pin wire First insert 10pin wire plug through the rectangular opening on PC board A Then lower the PC board A onto the bottom case section with screws A 3pcs Completed bottom case and PC board A section Completed bottom case and PC board B section Slide the tab on the wire plug into the slot in the wire socket Make sure to install in correct dir...

Page 10: ...tteries and the bottom case Completed bottom case and PC board A B C section 3V battery holder AA battery AA battery 9V battery 9V battery snap Bottom case section Make sure the switch is off Place two AA batteries in the 3V battery holder in the correct polarity The 9V battery snap push to 9V battery with correct polarity Insert 9V battery snap wire through the rectangular opening on bottom case ...

Page 11: ... 11 Connecting the wires connector to PC board pins 18 PC board A 9V battery snap and 3V battery holder wires Motor wires left and right If the connectors of the wires are too loose pinch the connectors lightly with a pair of long nose pliers so they will not come off Continuation of step 11 Completed connecting the wires Wiring table Wire Marking on PCB Right motor Yellow MR Green MR Left motor Y...

Page 12: ...nt apron Insert the pins of aprons to the holes of bottom case section Bottom case section 20 Body section Screw B 2 pcs Insert the holes of dome to the pins of aprons And then assembling the dome and the body section with screw B Dome 13 Assembling dome and body section Completed sketch ...

Page 13: ...stacle is too small too close or the colouristoodark Tribotzmaynotfindit 22 Black line White paper Reflection light phototransistor phototransistor Bend to toward or backward LED Bend to left or right Bend to left or right How to use the Tribotz in line tracer mode BendtheLEDonthesensorPCboardalittleeither way towardtheLED ortheotherway toadjustthesensitivitywhenthesensordoesnotcatchthe blacklinew...

Page 14: ... this chart to diagnose problems Problem Solution The motor is not spinning Check that the wiring is correct Check the polarity of the batteries Insert new batteries The Tribotz off the line easily Tuning the LED and phototransistors Insert new 9V battery The Tribotz does not avoid an obstacle Insert new 9V battery The Tribotz does not react to hand claps Insert new 9V battery Tribotzalsocomeswith...

Page 15: ...kings 25 Avoidance sensor section Tracer power supply control section Power supply 9V section Power supply 3V section Sound sensor section Memory circuit section Tracer sensor section Amplification time section Amplification and driving motor section Right motor Left motor sw A sw B T S A OFF Flicker circuit section Filter section Filter section Switch SW ML MR Mode condition dispaly section Mode ...

Page 16: ... black line it memorizes from which side it has strayed off and this part of the circuit instructs the motors to direct Tribotz back to the black line For example when it goes off to the right side of a black line the reflected light is collected by the phototransistor PD2 TR12 turns on and TR11 turns off At the same time TR13 TR3 and TR6 in the amplification and driving motor section are turned o...

Page 17: ...ation timer section leading to the malfunction a filter which consisting of R1 C2 and C1 is included to suppress the noise This is one of the tests for Toy Safety in the European Community and is known as the EMC Explanation of circuit 29 Test 6 Power supply section The 9V battery provides the energy to operate the flicker circuit section avoidance sensor section amplification timer section and mo...

Page 18: ...t the sensor and the amplification timer section leading to the malfunction a filter which consists of R1 C2 and C1 is included to restrict the noise 5 Power supply section The 9V battery provides energy to operate the flicker circuit section avoidance sensor section amplification timer section and mode condition display section The 2 pieces of the AA batteries 1 5V x 2 3V provide energy to operat...

Page 19: ...her This will eventually result in the battery running down Current Amps So how do we measure current Currents are measured in amps and voltages are measured in volts after the scientists Ampère and Volta Voltages are sometimes called potential differences or electromotive forces Current flows into a component and the same amount of current always flows out of the component As current flows throug...

Page 20: ...r you will multiple the other 2 numbers by Write it next to the other 2 numbers with a multiplication sign before it Example 2 2 x 1 000 To pull it all together now simply multiply the first 2 numbers 1st number in the tens column and 2nd in the ones column by the Multiplier Common symbols used for resistors Learn all about the electronic parts used in robots 34 Resistor Colour Code Chart 1st 2nd ...

Page 21: ...hey won t work They also slowly leak their charge and they have quite large tolerances dielectric Learn all about the electronic parts used in robots 36 General Capacitor Polarised Capacitor Preset Capacitor We ve seen that when a capacitor is fully charged the current stops In other words a continuous current cannot flow forever through a capacitor A continuous current is called a direct current ...

Page 22: ...r and could also be used to cause the LED to flash Learn all about the electronic parts used in robots 38 anode cathode IC Integrated Circuit Diode The diodes used in this circuit allow the flow of electrons one way only This flow is from the anode to the cathode Therefore diodes are basically a one way valve for electrical current They let it flow in one direction from positive to negative and no...

Page 23: ...symbols The different types of components we have encountered each have a symbol to represent them in a circuit diagram Please see the actual circuit diagram of Hydrazoid to see where the symbols are located Resistor Preset Resistor Non electrolytic capacitor Electrolytic capacitor LED the arrow shows the direction that conventional current can flow Transistor the arrow shows the direction that co...

Page 24: ... all other locations across the world please contact IBOTZ Division of Instruments Direct Limited Spares Department 13 14 Worton Court Worton Road Isleworth TW7 6ER Tel 020 8560 5678 Fax 020 8232 8669 sales ibotz com 41 IMPORTANT If you have a problem please don t contact your local shop but call our technical support line at 020 8560 5678 UK or 978 568 0484 USA Spare parts How to use the spare pa...

Page 25: ...ck out their web site to see what s going on http www robofesta uk org RoboFesta recommend the RoboCupJunior robotics competitions including robot soccer robot dance and robot rescue the UK champs include boys and girls of all ages If you are more ambitious you could join the adult RoboCup competitions their ambition is to have a team of humanoid robots beat the world champion soccer players by 20...

Page 26: ...one who wants to know how robots work and how they are increasingly affecting our lives The course gives an understanding of the technology behind intelligent machines and how humans can interact with them A178 Perspectives on Leonardo da Vinci Leonardo was one of the greatest painters scientists engineers and architects of all time He lived from 1452 to 1519 and for centuries people have marvelle...

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