ELECTRONICS PROJECTS

1. DIGITAL COMBINETION LOCK

2. SAFETY GUARD FOR THE BLIND (PROXIMITY BASE)

3. LIGHT COTROLLED DIGITAL FAN REGULATOR

4. LOW-COST ENERGY METER USING ADE 7757

5. HOME AUTOMATION AND SECURITY CONTROL INTERFACE WITH TELEPHONE

6. LINE TRACKING ROBOT/MOUSE

7. REMOT CONTROLLED STEPPER MOTOR

8. ULTRASONIC SWITCH

9. DEVICE SWITCHING USING PASSWORD

10. SPEED CHECKER FOR HIGHWAYS

11. ULTRASONIC PROXIMITY DETECTOR

12. ULTRASONIC MOVEMENT DETECTOR

13. VEHICLE SEED MEASUREMENT CONTROL PC BASED

14. SMART CARD FOR ENTRY EMPLOY

15. SECURITY ACCESS CONTROL SYSTEM

16. RADAR SYSTEM (LATEST FOR COMMUNICATION STUDENTS)

17. PRI-PAID ENERGY METER

18. PRI-PAID CAR PARKING SYSTEM (LATEST)

19. ULTRASONIC DISTANCE METER

20. DATA SECUIRTY SYSTEM

21. DESIGN OF A BUS STATUS IDENTIFICATION SYSTEM (LATEST )

22. CALLING NUMBER IDENTIFICATION USING CALCULATOR

23. OPTICAL REMOT SWITCH

24. LOAD PROTECTOR WITH REMOTE SWITCHING

25. DISITAL WEIGHT ACCUMULATOR

26. REMOT CONTROLLED LAND ROVER

27. TELEPHONE ANSIRING MATCHING

28. AUTO CAR PARKING(LATEST)

29. AN INTELLIGENT AMBULANCE CAR WHICH CONTROL TO TRAFFIC LIGHT

30. WATCHMAN ROBOT

31. SUN SEEKER

32. AUTO BRAKING SYSTEM

33. TOUCH SCREEN

34. DTMF REMOTE CONTROL SYSTEM

35. AUTOMATIC RAILWAY CROSSING GATE CONTROLLER (LATEST)

36. HOME SECURITY SYSTEM WITH SENDING MESSAGE ON OUR CELL PHONE

37. FASTED FINGER FIRST

38. MOBILE CONTROL ELECTRICAL APPLIANCES(LATEST)

39. RF CONTROL ELECTRICAL APPLIANCES

40. MIND READER

41. DIGITAL COMBINATION LOCK

42. SAFETY GUARD FOR THE BLIND

43. DIGITAL SPEEDOMETER

44. RADIO CONTROLLED REMOTE CONTROL

45. MICRO PROCESSOR-BASED DC MOTOR SPEED CONTROL

46. 31/2 DIGIT VOLTMETER WITH LED

47. 31/2 DIGIT VOLTMETER WITH LCD

48. 31/2 DIGIT THERMOMETER

49. DTMF 5-CHANNEL SWITCHING VIA POWER LINE

50. DEVICE SWITCHING USING PASSWORD

51. LASER-BASED COMMUNICATION LINK (COMMUNICATION

52. VIOCE & DATA COMMUNICATION WITH FIBER LINK ( COMMUNICATION )

53. BUDGET DIGITAL OSCILLOSCOPE

54. WIRELESS HOME SECURITY

55. BEND STOP FILTER

56. A VERSATILE FUNCTION GENERATOR

57. DIGITAL DOOR BELL

58. TRANSFORMER LESS 12V DUAL POWER SUPPLY

59. INFRARED BURGLAR ALARM WITH TIMER

60. AUTOMATIC VOLTAGE STABILIZER USING AUTOTRANSFORMER

61. DIGITAL CODE LOCK

62. TELEPHONE CALL METER

63. EMERGENCY LIGHT USING CFL

64. WIDE RANG SQUARE WAVE GENERATOR

65. 1 HZ CLOCK GENERATOR

66. REMOTE MUSICAL BELL

67. ELE. TELEPHONE DEMONSTRATOR

68. TELEPHONE CALL COUNTER

69. LED VOLTMETER FOR CAR BATTERY

70. QUALITY FM TRANSMITTER

71. DIGITAL VOLUME CONTROL

72. 99.99 SEC. STOP-CLOCK

73. MULTIPURPOSE DIGITAL COUNTER

74. VERSATILE ON/OFF TIMER

75. SUPER SIMPLE TRIANGULAR TO SINE WAVE GENERATOR

76. DIGITAL FAN REGULATOR

77. TEMPERATURE DISPLAY

78. FREQUENCY GENERATOR

79. SOUND LEVEL INDICATOR FOR STEREO SYSTEM

80. SINGLE-GATE SQUARE WAVE GENERATOR

81. QUICK 741 AND 555 TESTER

82. REGULATE DUAL POWER SUPPLY

83. SENSITIVE FM TRANSMITTER

84. LIGHT CONTROLLED DIGITAL FAN REGULATOR

85. MOVING MESSAGE DISPLAY EPROM BASE

86. PROGRAMMABLE DIGITAL TIME SWITCH

87. PROGRAMMABLE DIGITAL TIMER CUM CLOCK

88. REMOTE CONTROL AUDIO PROCESSOR

89. HEART BEAT MONITOR

90. AEROPLANE DIRECTION INDICATOR

91. VOICE TRANSMITTER IN POWER LINE AND SWITCHING

92. A SINGLE-CHIP TIMER WITH DIGITAL CLOCK AND CALENDER

93. IMPEDANCE METER

94. REMOTE AUDIO LEVEL INDICATOR

95. MULTICHANNEL TOUCH SWITCH

96. SAW TOOTH WAVE GENERATOR

97. TEMPERATURE CONTROLLED FAN

98. 1 HZ MASTER OSCILLATOR

99. REMOTE TV TESTER

100. CORDLESS INTERCOM

101. REMOT CONTROLLERED LAND FOVER –A DIY ROBOTIC PROJECT

102. DIGITAL WEIGHT ACCUMULATOR

103. IR- TO- RF CONVERTER

104. FM RECEIVER USING CXA1619

105. HEAT SENSITIVE SWITCH

106. TRANSISTOR TESTER

107. AUTOMETIC SCHOOL BELL

108. DIGITAL STOP WATER

109. INFRARED INTERUPTION COUNTER

110. AUTOMATIC ROOM LIGHT CONTROLLER: In this project we use object counter circuit with, auto light on when any body enter in the room and counter display any number, when all the person left the room and counter shows a 0 number on display then only light is off two rays of sensor is install in the door.

111. PROJECT ON WIRELESS DATA AND VOICE TRANSMISSION USING INFRARED PLUS HOME AUTOMATION (LATEST)

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PROJECT WIRELESS DATA AND VOICE TRANSMISSION PLUS HOME AUTOMATION (COMBO PROJCET (LATEST FOR COMMUNICATION STUDENTS CALL NOW )

AUTOMATIC CONTROL OF UNMANNED RAIL GATE

AUTOMATIC   CONTROL OF UNMANNED RAIL GATE

automatic railway gate controll project

We  read news papers very often about the railway accidents happening at un attanded railway gates. Present project is designed to avoid such accidents if emplemented in spirit.    this project utilises two powerful  ir transmitter and two receivers ,one pair of transmitter and receiver is fixed at up side (from the train comes) at a level higher than human beeing in exact alignment and similarly other pair is fixed at down side of the train direction   sensor activation time is so adjusted by calculating the time taken at a certain speed to cross  at least one compartment of standard minimum size of the indian railway. I have considered 5 seconds for this project sensors are fixed at 1000 miters on both sides of the gate we call fore side sensor pair for commong towards gate train and aft sidesensors for the train just crosse the gate when foreside receiver get activated,  gate motor is turned on in one direction and gate is closed and stay closed till train crosses the gate and reaches aft side sensors  when aftside receiver get activated  motor turns in opposite direction and gate opens and motor stops . Buzzer will immidiately  sound at the fore side receiver activation and gate will close after 5 seconds so giving time to drivers to clear gate area in order to avoid trapping between gate. And stop sound after the train has crossed. Two other indications are provided for station master to know the status of gate   in case the gate is not closed due to any reason  a red signalling light fixed well before gate is enough to alarm the train driver to stop the train . The project is simple emplementation and subject to further improvement. Based on atmel 89c51 microcontroller.

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Object Counter

Object Counter

Project Object Counter Block Diagram       The project presented here is based on world’s most powerful microco-ntroller based on intel’s mcs-51 family , generally known as intel-8051. We have used its derivative atmel-89c2051. Operation:  A pair of 38khz transmitter and a receive is used to count the objects. Call IndinEngineer's To Book This Project Counts pulses are out from the 38khd receiver which are coupled to an opto coupler.  At pin 2 out put of the optocoupler is connected to microcontroller pin 8 p3.4. Ic3 an optocoupler will receive incoming count pulse at pin3 and output from pin 5 is connected to p3.4 pinof the ic2 microcontroller, Two line by 16 character on each line (2×16) is used in nibble mode and maximun count can reach upto 65536 there after it will reset to 00000. SW1 is manual reset switch to make the counter to reset to zero.  Circuit is driven by 9v 500m.a.  transformer connected to PCON1 Diode D1-D4 forms bridge  circuit C1,c2 and c3 are filter capacitors and are part of power supply section.. Ic1 7805 is 5v regulator ic to give stablised supply to microcontroller. Ld1 is a  power indication led. R1 controls the current flowing thrugh led LD1 Crystal X1  along with C5 and C6  gives the necessary clock to microcontroller. Capacitor C4 and R2 gives the required reset pulse to microcontroller.   Construction: solder all the parts provided in the kit properly. First connect the jumper wires(links) before you solder the ic sockets. Donot solder integrated circuits directly on the circuit board , it may damage the ic since you my not be experianced soldering person. So solder the ic sockets first on the circuit board. Solder smaller components first like resistance and disk capacitors, assemble the complete kit one by one. Please make sure that there are no  short circuits left on to the circuit board. Connect the main supply wire with 230v ac pins at one end ,to the 9v transformer towards primary side to the other open end. . Primary side will have high resistance when checked with multimeter. Connect 2pin plug to the secondary side of the transformer(low resistance side)  plug the wire to main and check the ac voltage at the plug connected to the secondary of the transformer. It should be 9v ac. Now connect the plug   to the socket connected on to the circuit board. Power supply led ld1 will glow. Check the voltage at the output of the regulator. It should be perfactly 5v dc. Check the voltage at the power supply pins of all the sockets mounted on circuit board it should be 5v dc.

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