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Comparators and ICs
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KRAIG102
7th August 2011
KRAIG PAPER DISCUSSION
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Revision – Intro Workshop Parts Of A Mobile Robot Basic Electronic Components Locomotion System Rectifier Circuit DC Motor H Bridge Sensor Interfacing Line Following Duty Cycles
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Revision – KRAIG 102 Locomotion System Driving Mechanisms H-Bridge Sensor Interfacing LED-LDR Circuit
4th September 2011
LM339
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Comparator
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Comparator ICs LM339, LM393 and LM311 They consist of more than one comparator. LM311 consists of single comparator
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LM393
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LM339
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LM339
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LM339 Pin Diagram
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Light Sensing Module using LED-LDR combination
Sensor Interfacing
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Final Circuit
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Final Circuit Circuit has 4 sensors Each is connected to a comparator of the IC Each should have its own potentiometer for
thresholding
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DC Motor Direction Control H – Bridge Circuit Diagram
S1
S3
S2
S4
M1 2
VCC
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H – Bridge Working
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L293D
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L293D
What does autonomous mean?
AUTONOMOUS ROBOTS
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Line Following How many LED-LDR pairs are required to create an
autonomous line following robot?
Line Following with two Pairs
THANK YOU
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