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22 Aug 2014, 7:23

Arduino Line Tracking Robot Car

This line tracking robot car was built base on the prototype mentioned in the previous knowledge item.

You can find the details for the prototype:

http://www.rs-online.com/designspark/electronics/eng/knowledge-item/arduino-line-tracking-robot-car-prototype

 

Bills of Materials:
PCB

Geared Motor
OSRAM Opto Semiconductors Photodiode  RS stock number: (654-8902)
Nichia LED  RS stock number: (713-3996)
RS 10k Ohm resistor  RS stock number: (707-8906)
RS 470 Ohm resistor  RS stock number: (707-8851)
RS 100 ohm Resistor  RS stock number: (707-8142)
Fairchild Semiconductor PN2222ATA Transistor(RS stock number: (739-0381)
Fairchild Semiconductor 1N4004 Diode(RS stock number: (759-6678)
Nichion 47uF Capacitor RS Stock Number: (475-9425)
Muraia 0.1uF Capacitor RS Stock Number: (653-0119)
Arduino Leonardo RS stock number: (713-3996)

Since the geared motor is easier to control the speed and creates a larger torque compare with the ordinary DC motor, geared motors is used rather than using motors in this robot car. After using the geared motor, the torque is larger and the stability of the performance increases.

Also, a PCB was fabricated based on the schematic mentioned previously. Therefore, the car chassis is tidier and easier to integrate. It is lighter as well.

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Demo Video:

Update on 22/8/2014:

In order to have a higher efficiency, the transistors were changed from BJT to MOSFET. Also, we have added a ball bearing at the front of the car, the speed of the car becomes faster obviously.

Bills of Materials:

PCB

Geared Motor
OSRAM Opto Semiconductors Photodiode RS stock number: (654-8902)
Nichia LED RS stock number: (713-3996)
RS 10k Ohm resistor RS stock number: (707-8906)  
RS 470 Ohm resistor RS stock number: (707-8851)
RS 100 ohm Resistor RS stock number: (707-8142)
STMicroelectronics STP36NF06L, N-channel MOSFET Transistor RS stock number: (486-5671)
Fairchild Semiconductor 1N4004 Diode RS stock number: (759-6678)
Nichion 47uF Capacitor RS Stock Number: (475-9425)
Muraia 0.1uF Capacitor RS Stock Number: (653-0119)
Arduino Leonardo  RS stock number: (713-3996)

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22 Aug 2014, 7:23