Ultrasound radar system
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The ultrasound radar system is on the basis of the Doppler Effect. In the incessant acoustic wave actuator, emitting to object. Some acoustic wave which impacted the object would reflect from point of the previous emitter. After calculating, we know the velocity of object. The ultrasound radar sold on the marketing is expensive, so we use the ultrasonic instead of radar wave. By MSC-51 logical operation can get a surefire result. - iii -
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Pin Symbol Level I/O number Function 1 Vss - - (GND) 2 Vcc - - (+5V) 4 RS 0/1 I 3 VO - - LCD 0 = 1 = 0 = LCD 5 R/W 0/1 I 1 = 6 E 1, 1-->0 I 7 DB0 0/1 I/O DB0 (LSB) 8 DB1 0/1 I/O DB1 9 DB2 0/1 I/O DB2 10 DB3 0/1 I/O DB3 11 DB4 0/1 I/O DB4 12 DB5 0/1 I/O DB5 13 DB6 0/1 I/O DB6 14 DB7 0/1 I/O DB7 (MSB) - 18 -
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