ATMEGA ULTRASONIC RANGE FINDER FAKHRUL ADLEE BIN ...

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82.6 Ultrasonic ReceiverThe receiver also has the same configuration except that it has a receiverelectronic circuitry and a transducer, which converts the ultrasonic sound waves intoan electrical signal. The sound waves travel into the medium and are reflected by anobject in the path of the waves. This reflected wave is then sensed by the receiver,which actually calculates the time of flight of the signal to find the distance.Figure 2.5 : The receiver circuit design.
92.7 AT89S51 MicrocontrollerThe microcontroller is used to generate 40 kHz sound pulse. It reads whenthe echo arrives, it finds the time taken in microseconds for to and from travel ofsound waves. Using velocity of 330 m/s, it does the calculations and shows on theLCD Module and display the distance in centimetres. It used In-Systemprogramming (ISP) to be programmed and this programmer will be elaborate morein chapter 5.Figure 2.6 : The microcontroller top view.
Page 5 and 6: vABSTRACTManual distance measuring
Page 7: viiTABLE OF CONTENTSCHAPTER TITLE P
Page 11 and 12: xiLIST OF SYMBOLSIC- Intergrated Ci
Page 13: CHAPTER 1INTRODUCTION1.1 Introducti
Page 17 and 18: 52.4 Ultrasonic TransmitterThe tran
Page 19: 7The Table 2.1 shows the datasheet
Page 23 and 24: 11CJNE - Compare and Jump If Not Eq
Page 25 and 26: 13standard 80C51 instruction set an
Page 27 and 28: CHAPTER 3RESEARCH METHODOLOGY3.1 In
Page 29 and 30: 173.4 Selection of MethodologyBased
Page 31 and 32: 194.2 Flowchart Of The ProjectFlowc
Page 33 and 34: 21Week 12 Week 13- -Week 14Week 15T
Page 35 and 36: 23The echo signal received by the r
Page 37 and 38: 255.3.2 Hardware Of ISPFigure 5.1 s
Page 39 and 40: 275.4 FlowchartThe flowchart below
Page 41 and 42: 295.5 C LanguageC language or in si
Page 43 and 44: Figure 5.5 :Schematic diagram of th
Page 45 and 46: 33AT8951 (Microcontroller)NE555 (Ti
Page 47 and 48: 356.1.1 Radiation PatternAll ultras
Page 49 and 50: 37Figure 6.2: Beam pattern with res
Page 51 and 52: 396.2.2 Pressure And HumidityAs the
Page 53 and 54: 416.3 NoiseThe output of the sensor
Page 55 and 56: CHAPTER 7TESTING AND RESULTS7.1 Sys
Page 57 and 58: 45There are also some figures that
Page 59 and 60: CHAPTER 8CONCLUSION8.1 Concluding R
Page 61 and 62: 48REFERENCES1. An Ultrasonic Range
Page 63 and 64: 50---------------------------------
Page 65 and 66: 52//x++;}--------------------------
Page 67: 54}}}count = 0;

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