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 라인 트레이서_LM393 [D2-1] |
-> LOGIC IC사용한 라인트레이서입니다.
1. 폭이 약 1 ~2Cm의 라인을 따라 주행합니다.
2. DC3V로 작동
3. LM393 IC 사용 |
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Description:
Photosensitive resistance device
This is photosensitive resistance, it can detecting the external light intensity, the stronger the outside light photosensitive resistor resistance is small, the outside light weaker resistance bigger when the red LED light projected onto a white and black runway because reflection rate is different, the resistance value of the photosensitive resistance will occur obvious difference for subsequent circuit control.
LM393 comparator integrated circuit
LM393 is a dual voltage comparator integrated circuit, which consists of two independent precision voltage comparator. Its role is to compare the two input voltage, based on the level of two input voltage to change the level of output voltage. The output has two states: close to open or close to the low level, LM393 using open collector output, so it is necessary to add the pull resistance to output high level.
DC motor with gear reduction gear
DC motor drive the car must be to slow down, otherwise too high speed of the car, then ran too fast don't control, and the deceleration torque is too small and could not run up. We specialize in custom of this kind of motor has been integrated with the reduction gear and greatly reduce the manufacture difficulty is very suitable for our use.
LM393 to compare two photosensitive resistance, when the imbalance (e.g. side pressure runway black) immediately control side of the motor stops rotating, the other side of the motor rotational acceleration, so that the car modification direction, return to the correct direction, the whole process is a closed loop control therefore, rapid and sensitive control.
Assembly steps:
1, according to the circuit board and the identification of the circuit board in turn the resistance, IC, transistors, light-emitting diodes, resistors, switches and electrolytic capacitors welding in the circuit board, pay attention to the direction of IC. D4/D5 and R13/R14 welding to the circuit board, the diode is inserted into a point of high welding fixed, the photosensitive resistance can be almost as high as the two level of light, the tube can not be cut off after the convenience of debugging. In addition, for the convenience of the test chip is not installed temporarily.
2, the battery box with 2mm fine screw mounting to the circuit board, the wire walk through the welding, pay attention to the positive and negative electrode, red as the cathode.
3, the two fixed electrode plates with screw 3*30mm fixed to the motor gearbox (pay attention to the direction of loading to the circuit board shaft on the outside, namely two boards in the two motor is opposite); the wire to tear into a single, the thrum removed a insulating layer welded to the motor, and then fixed on the motor fixing plate welding to the motherboard, the conductor also end welded to the M1, M2.
4, white wheel on the silica gel tire, the wheel on the motor shaft, attention to the hexagonal hole axis as long as the corresponding to the two sides can be properly placed on the appropriate force, can not be used to rotate the hand.
5 the 5mm screw through the motherboard installed on 5mm nuts to the bottom of the screws to the motherboard, and then put a screw turned into a little leave enough round nut installation position, to do a good job in the car on the desktop, adjust the overall car board to maintain the level of and fixed round nut (pine plain nuts tight round nut can be fixedly). Round nut to universal wheel function.
Vehicle debugging:
1, No. 5 batteries, turn on the switch LED3, the opposite of D4 and D5 should be lit, such as light, please adjust light emitting diode anode and cathode, are light, turn off the stand-by.
2, test motor positive and negative pole: the integrated circuit (IC) seat pin 1, pin 7, 4 feet connected together with the two cut resistance feet in in the corresponding pin ensure tripod can be connected). Turn on the power switch, when the two wheels should turn to the front, or the two lines of the motor can be changed. If the motor does not turn, please check the direction of the transistor is connected to the reverse, the base resistance (10) is wrong. Power down integrated circuit LM393, attention direction.
3, through the black line debugging, D4 and photosensitive resistance 13 and the black line corresponds to the D1 green light-emitting tube destroyed, M2 wheel forward, if not destroy please adjust potentiometer R1, D1 to so far. The regulation on a black line in the D2 de M1 forward. This car can automatically walk along the black line, available 1.5cm-2cm black insulating tape on the ground paste a runway for the car self walking, the runway is best not to right angle bend.
Matters needing attention:
Assembly instructions is the back of the car tracking the airstrip, customers can also direct use of 1.5 ~ 2.0 cm black electrical tape pasted directly designed to track complex on the ground would be more fun.
*회로설계,주문제작,개발용 부품 및 모듈 전문점
유틸전자주식회사
서울 용산구 한강로 3가 16-9 전자랜드 본관 광장층 C31호
02-706-7700 aproga@korea.com www.UTIL.co.kr |
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유틸전자주식회사 | 서울시 용산구 청파로74 전자랜드본관 광장층 C-31호 | E-mail: aprogara@naver.com| 사업자번호: 106-86-72446
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