Electronics Project Part- I

Electronics Project Part- I

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
17. PRI-PAID ENERGY METER
18. PRI-PAID CAR PARKING SYSTEM
19. ULTRASONIC DISTANCE METER
20. DATA SECUIRTY SYSTEM
21. DESIGN OF A BUS STATUS IDENTIFICATION SYSTEM
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
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
36. HOME SECURITY SYSTEM WITH SENDING MESSAGE ON OUR CELL PHONE
37. FASTED FINGER FIRST
38. MOBILE CONTROL ELECTRICAL APPLIANCES
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
52. VIOCE & DATA COMMUNICATION WITH FIBER LINK
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. AROPLANE 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.

PC INTERFACE PROJECTS

1. PC TO PC COMMUNICATION USING IR/FIBER OPTIC CABLE
2. PWM CONTROL OF DC MOTOR USING C++
3. COMPUTERISED ELECTRICAL APLAINCE CONTROL
4. DATA ACQUISITION CARD FOR P.C.
5. SIMPLE ANALOGUE INTERFACE FOR P.C.
6. P.C. BASED FUNCTION GENERATOR
7. PC BASED SUN SEEKER
8. COMMUNICATION BETWEEN PC’S USING IR, LASER
9. SIMPLE RELAY AND SENSOR INTERFACE FOR P.C.
10. P.C. BASED DIGITAL CLOCK
11. INTERFACE YOUR PC WITH LIGHT AND FANS
12. P.C. BASED VISITOR COUNTER
13. P.C. BASED TOKEN NUMBER DISPLAYER
14. PC BASE TRANSISTOR LEAD IDENTIFIER
15. PC BASED STEPPER MOTOR CONTROLLER
16. PC BASED DC MOTOR SPEED CONTROLLER
17. P.C. BASED 7-SEGMENT ROLLING DISPLAY
18. PC. BASED DC MOTOR SPEED CONTROLLED
19. PC BASED ROBOTIC ARM
20. P.C. BASED TIMER
21. P.C. BASED MULTILEVEL CAR PARKING

MICROCONTROLLER BASED PROJECTS

1. FASTEST-FINGER-FIRST USING 89C51
2. MICRO PROCESSOR BASED REVERSIBLE D.C. MOTOR CONTROL
3. MOVING MESSAGE DISPLAY 8085 MICROPROCESSOR
4. PC16F84- BASED CODED DEVICE SWITCHING SYSTEM
5. STEPPER MOTOR CONTROL USING 89C51
6. MIC-89C51 MONITORING SYSTEM
7. MANUAL AT 89C51 PROGRAM
8. AT 89C2051 BASED COUNTDOWN TIMER
9. MICROCONTROLLER BASED CODE LOCK USING AT 89C2051
10. LCD FREQUENCY METER USING 89C2051
11. CALLER ID UNIT USING MICRO-CONTROLLER
12. PIC 18 F 84 MICRO-CONTROLLER BASE CODE DEVICE SWITCH SYSTEM
13. MICROPROCESSOR-BASED HOME SECURITY SYSTEM
14. STEPPER MOTOR CONTROL USING 89C51 MICRO-CONTROLLER
15. MICRO CONTROLLER BASED TEMPERATURE METER
16. MICRO CONTROLLER BASED HEARTBEAT MONITOR
17. RS232 ANOLOG TO DIGITAL CONVERTER USING AT89C51 MCU
18. ULTRASONICRANGEFINDER USING PIC MICRO CONTROLLER
19. CALLER- ID UNIT USING MICRO CONTROLLER
20. MICRO CONTROLLER BASED PATHFINDER
21. MICRO CONTROLLER BASED ROBOT.
22. MICRO CONTROLLER MOVING MESSAGE DISPLAY
23. MICRO CONTROLLER BASED RELAY SWITCHING
24. MICRO CONTROLLER AUTO DIALER USING GSM.
25. MICRO CONTROLLER BASED WATER LEVER INDICATOR
26. MICRO CONTROLLER BASED WIRELESS HOME AUTOMATION
27. MICROCONTROLLER BASED RADAR SYSTEM
28. MULTI CHANNEL INFRA RED CONTROL 4 different point 89c2051 micro controller in transmitter and receiver, using infra red technique.
29. MOVING MESSAGE DISPLAY : 89c51 micro controller Led matrix,
30. Digital clock with alarm: using 89c51 micro controller
31. TRAFFIC LIGHT WITH DOWN COUNTER : all the four sides of the road with one side counter display using 89c51 micro controller circuit.
32. ULTRASONIC DISTANCE METER USING MICROCONTROLLER
33. PRI-PAID CAR PARKING SYSTEM
34. MULTILEVEL CAR PARKING BY MCU
35. MICRO CONTROLLER TEMPERATUIRE METER
36. ANOLOG TO DIGITAL CONERTER USING AT89C51 MCU
37. INFARED REMOTE CONTROLE SYSTEM
38. ULTRASONIC MOVEMENT DETECTOR
39. MICROCONTROLLER BASED TACHOMETER
40. MCU BASED VISITOR COUNTER
41. PWM CONTROL OF DC MOTOR USING 89C51
42. AN INTELLIGENT AMBULANCE CAR WHICH CONTROL TO TRAFFIC LIGHT
43. PRE-PAID ENERGY METER
44. MICROC CONTROLLER BASED LINE FOLLOWER OR TRACING ROBOT
45. AUTOMATED WALKING ROBOT CONTROLLED BY MCU
46. AUTO BRAKING SYSTEM
47. AUTOMATIC RAILWAY CROSSING GATE CONTROLLER

ROBOTIC & ELECTRO-MECHANICAL CONTROL BASED PROJECTS

1. ROBOTIC ARM INTERFACING WITH PC/MCU/ IR/RF
2. HYDRAULIC LIFT
3. LINE FOLLOWER OR TRACING ROBOT
4. AUTOMATED WALKING ROBOT
5. DIGITAL SPEED MEASUREMENT SYSTEM FOR AUTOMOBILE
6. LIFT CONTROL USING PC AND MCU
7. ESCALATOR LIFT USING PC & MCU
8. PATH FINDER MOBILE ROBOT
9. MULTILEVEL CAR PARKING LIFT USING MCU
10. AUTOMATIC RAILWAY CROSSING GATE CONTROLLER
11. AUTO REJECTION + CONVEYER BELT SYSTEM
12. AUTO JACK MACHINE
13. AUTO BRACK SYSTEM FOR AUTOMOBIL
14. PADDLE CONTROLLED WASHING MECHINE
15. HYDRO ELECTRICITY
16. WIND ELECTRICITY
17. ELECTRICITY FROM SPEED BRAKER
18. SOLAR SUN SEEKER
19. ROBOTIC CRANE WITH UP/DOWN & CIRCULAR MOTION

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Access Control with RFID Tags

Access Control with RFID Tags

Introduction

It is quite easy to read IDs of RFID tags, using Parallax’s serial or USB RFID card reader. If you have two RFID cards at least, and of course Parallax RFID reader, you can set up, without hassle, the below described project. This blog contains several articles that show how easy it is, to control and communicate with electronic devices with Processing.

Objectives

Read RFID cards, using serial communications of Processing and Parallax RFID Card Reader, and show  useful information on-screen with user interaction.

Pre-Requirements

Installed Processing environment, RFID Card Reader USB #28340 from Parallax, at least 2 RFID Cards, and a USB cable for connecting between RFID Card Reader and PC.

The Experimental Set

Connecting to PC

The RFID Card Reader when correctly installed will be shown as a serial device.  Check the port number where the RFID reader is connected in Control Panel - > System – >Hardware tab -> Device Manager button -> Ports (COM and LPT). In this experiment the serial port was COM4. After cheking the port number you just need to take note of it to be introduced into next Processing sketch.

The Processing Sketch

Start a new sketch in Processing, and save it as rfid.pde.

The code for rfid.pde:

01	// Sketch code based on the one found in "Reading RFID Tags in Processing" chapter

02	// of the book Making Things Talk published by O'Reilly

03

04	import processing.serial.*;

05

06	Serial myPort;

07	String tagID="";

08

09	void setup() {

10	size(350,150);

11	myPort = new Serial(this, "COM4", 2400);

12	myPort.buffer(12);

13

14	PFont myFont = createFont(PFont.list()[2], 24);

15	textFont(myFont);

16

}

17

18	void draw(){

19	background(0);

20	text(tagID, width/4 + 12, height/2 - 24);

21

}

22

23	void serialEvent(Serial myPort) {

24	tagID = trim(myPort.readString());

25

}

Make the adequate COM port changes in your sketch line 8 myPort = new Serial(this, “COM4″, 2400);
to your PC’s installed RFID Card COM port number. Run the sketch and check the TagIDs of both cards. In this case the codes obtained were 34009EA5AF and 0F00296C9FF. The former was chosen as valid card for next sketch. In your case it will be another number.

We will next produce our final sketch. Start a new Sketch in Processing and save it asrfid1.pde

TTS library is required to add voice to the project. TTSLib from GuruBlog is used. Install the unzipped file into your libraries folder of Processing. The library will be imported by Processing. Add image (in this case 100×100 tayeb.jpg is used) to your Processing projects folder, usually found under my Documents\Processing.

Our folder here will be rfid1.

So here is the code for our final rfid1.pde sketch:

01	// Sketch code based on the one found in "Reading RFID Tags in Processing" chapter

02	// of the book Making Things Talk published by O'Reilly

03	// Library TTSLib from GuruBlog found at http://www.local-guru.net/blog/pages/ttslib is required

04

05	import processing.serial.*;

06	import guru.ttslib.*;

07

08

TTS tts;

09	Serial myPort;

10	String tagID="";

11

12	void setup() {

13	size(350,150);

14	myPort = new Serial(this, "COM4", 2400);

15	myPort.buffer(12);

16

17	PFont myFont = createFont(PFont.list()[2], 24);

18	textFont(myFont);

19

smooth();

20	tts = new TTS();

21

22

}

23

24	void draw(){

25	background(0);

26

27	if (tagID.equals("34009EA5AF")) {

28

PImage b;

29	b = loadImage("tayeb.jpg");

30	image(b, 20, 20);

31	text(tagID, width/2 - 6, height/2 - 24);

32	text("TAYEB", width/2 - 6, height/2);

33

}

34

else {

35	text(tagID, width/4 + 6, height/2 + 12);

36

}

37

}

38	void serialEvent(Serial myPort) {

39	tagID = trim(myPort.readString());

40	if (tagID.equals("34009EA5AF")) {

41

42	tts.speak("Hi! Welcome Tayeb!");

43

}

44

45

else {

46	tts.speak("Invalid Card!");

47

}

48

}

Make the adequate changes as shown below in following images:

Port number of installed RFID reader

Other required changes

Now run the sketch. If you read the cards you will hear voice. In this case “Invalid card!” or “Hi Welcome Tayeb!”., or whatever name you have chosen. In our project with sketch code as above, the follow results were drawn on the PC’s screen:

Valid card

Invalid card

In fact any other RFID card, besides the chosen one, will be considered invalid.

Conclusions

Though this actual project is quite simple and the code is not neat, bub it can ve improved. As something extra and quite simple one could add a serial controlled relay or another micrcontroller controlled device.

Of course projects with Visual C#, and other programming languages, can be made to talk to RFID cards, and be quite sophisticated. Some useful RFID projects can be attendance control, stock control, livestock identification, etc.

RFIDs are here to stay, and are everywhere these days. It is quite important to learn to work with them.

Acknowledgements

A special thanks is due to Tom Igoe, author of O’Reilly’s  book“Making Things Talk” for the code with Processing.

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