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Robot control circuit composed of transistor and NE555

2016-04-11 13:01  
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Robot control circuit composed of transistor and NE555
Robot control circuit composed of transistor and NE555
Robot control circuit composed of transistor and NE555
Figure 2-33 (a) is the action schematic diagram of the robot closing to the object. When there is no objects in front of the robot, it will go forward in the straight line; when there is an object in left or right side of the robot,it will turn left or right to close to the object. Figure 2-33 (b) is the block diagram to achieve this action. Figure 2-33 (c) is the actual circuit, in the circuit, NE555 is the multivibrator to produce pulse signal to modulate the infrared light emitted by infrared light-emitting diode TLNlO5, and the purpose is to avoid interference from other light. NE555 oscillation frequency is l0 kHz.