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This instructable gives instructions for constructing a robot car that will tracking dark line ( black )

robot Car contain ( IR sensors) and when sensors on black line , (sender IR) send infrared but not received it on(emitter IR) here both of wheels continue running forward , but when car go out the black line, sensor send and received (IR) here the left wheel opposite his direction to backward , and car carved.


Step 1: Equipments

1.Inverter 74LS05N
2.Relay 5-6 V
3.Transistor 2n2712
4. 4.5 Volt battery to motors and 6.0Volt to circuit
5.Two motors
6 .Wires
7. (IR) emitter, receiver
8. Board
9. Resistances (R1=6.2 M Ω, R2= 82 Ω, R3=10KΩ )

Step 2: Construction

connect the circuit as shown in figure

also sometime you need to add black tube in IR receiver ( more accurate in response )

Step 3: Done

here is the video

also you can be more creative by replace IR with microphone for example or anything




<p>Can tell me about how to Wire it or simply i want Wiring</p>
what are the RPM of the motor
please tell me guys how connections are made with the relay.. <br>
If I'm not mistaken, as I can see the circuit it only turns to the left... was that on purpose?
Hi,only one question!<br><br>What are the RPM of the motor.
Hi,<br>can you show how you have placed the reciever, im trying this , But its not working...please help me...i need more details about the type od IRx,Tx used,<br><br>When i tried it, the reciever voltage is not varying by much while it is in contact with black or white surface...<br>please help me...<br>regards, <br>allmin_1music@yahoo.co.in
Hi, nice robot! Very simple to make!<br>I want to make one but I have only 1 question: <br><br>What does de inverter do? <br><br>Thanks

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