Electrical Engineering Projects List

Electrical Engineering based projects  for final  year  students     Only list are available at                     here.

1.Zigbee Based Hospital Automation with online graph and WAP
2. Infant Incubator Parameter Sensing & Monitoring through ZIGBEE Wireless
3. Eye ball Sensor for automatic wheel chair movement for paralysed patients
4. Automated Environmental Friendly Vechicle System
5. Home appliances control using voice Dictation
6. Pc based Wireless Weather monitoring System
7. Embedded System Based Interlocking Sytsem For Chemical And Pharmacheutical Industries
8. Wireless Roaming Web Cam
9. Voice Controlled Wireless Multitasking Rover
10. SALVO RTOS Based Data Acquisition System and control with PC Interface
11. SUN SAIL - Tracking Elliptical Path Of The Sun
12. Home/Industrial Automation using GSM With Voice Feedback.
13. Embedded PIC MC based_Electronic Trivector Meter
14. Embedded Pic Microcontroller Based Power Multimeter
15. Control of substation equipments thro mobile phone.
16. Embedded Pic Microcontroller Based Motor Protection System
17. Energy Management System For Pulse Output Meters
18. IVRS Based Home Automation With Immediate Voice Feedback
19. Voice Controlled Wheel Chair Robot for Physically challenged.
20. Micro controller based Antilock Braking System using Proximity Sensors
21. PCB Drilling Machine using Cartesian bot
22. Programmable Grass Shredding Robot
23. Automatic Valet Parking System using conveyors
24. Programmable Surface Cleaning Robot using Blowers
25. Embedded System Based Automatic Furnace Control For Improvement Of Hardness On Materials
26. Interactive Telemarketing Device For Advertisement Agencies With Human Approach
27. Single Phase to 3 Phase Converter For Driving 3 Phase Motor using Single Phase
28. Temperature And Humidity Measurement System for Agricultural Applications
29. Embedded System based Automatic Furnace control for improvement of Hardness on materials.
30. Embedded System controlled Electroplating System
31. Embedded System based Transformer Oil Testing Machine.
32. Blue tooth Enabled Home/Industrial Automation
33. IVRS Based Electronic Tele-voting System
34. IVRS Based Control Of Three Axis Robot With Voice Feed Back
35. Embedded System based Cockpit White box automation
36. Energy Efficient Target Coverage in Wireless Sensor Networks
37. Contact less Measurement Of Emission Of Automobiles
38. Design Of Digital Cryogenic Temperature Controller
39. Automated Vertical Car Parking System
40. Remotely Activated Acoustic Warning System (RAAWS)
41. Biometric Finger Print Identification with PIC Based Access Control System
42. Biometric Finger Print Identification with PIC Based Time Recorder with Weigand Output
43. Biometric Finger Print Identification with PIC Based Bank and Locker Security system
44. Biometric Finger Print Identification with PIC Based Vehicle Access System
45. Biometric Fingerprint Based Guard Alert Monitoring system with PC interface
46. RFID Based Guard patrolling system with Handheld Device
47. IRIS Recognition system in Authenticating Highly Secured Data.
48. IRIS Scanner Using Access control Monitoring system
49. Embedded Micro controller Based Nomad Robots for exploration Application
50. Embedded Micro controller Based Robots for weather forecasting.
51. Vehicle Accessing using Authentication
52. Non-Contact Smart Card Reader Based Campus Management system.
53. Web/wap based system for remote monitoring patients with data mining support.
54. Remote Monitoring and Control using Mobile phones
55. Secured Postal Data Communication using RFID and E-POST
56. Distributed Multi area Power systems load flow monitoring
57. Smart Card based Attendance monitoring with Multi-Door output.
58. Secure Transmission of Sensitive data using Multiple channels
59. Micro controller Based Standalone Temperature Measurement System.
60. Micro controller Based Ultrasonic Pulse Detector.
61. Pc Based Flow Control And Level Measurement In Petrol Bunks.
62. Pc As A Pid Controller.
63. Vector Controlled Device For Energy Saving Air Conditioning System.
64. Fuzzy Logic Based Differential Relay For Power Transformer Protection.
65. Electric Power Generation using Footstep Method.
66. Embedded Micro controller based Grid Synchronization.
67. Energy Management Control System with WAP
68. Home Automation Using X-10 Protocol.
69. Bi Directional VF Control of Single Phase AC Motors.
70. Frequency Actuated Load Shedding with substation monitoring
71. Management of sub-transmission and distribution system in power systems
72. Mobile - Half Bridge Configuration Based High Voltage Generation of 10KVA_1KHZ
73. Vector Controlled Drive for Energy Saving in Air Conditioning system
74. High Performance AC Supply with Low Harmonic Distortion for multiphase AC Machines.
75. Enhancement of power system performance using STATCOM
76. Management of sub-transmission and distribution system in power systems.
77. Remote data monitoring using WAP Information Gateway
78. Embedded system based highway monitoring system and control
79. Automatic Anesthesia controller with respiratory system using Heart beat Sensor
80. Intelli mobile robot for multispeciality operations
81. prepaid electricity system automation with contact less proximity card & card reader
82. IVRS Based smart home automation with voice feedback.
83. smart solar tracking for optimal power generation
84. Wireless AI Based voice controlled intelli robot for multispeciality operations
85. Network enabled Electronic Digital televoting machine.
86. Speech Recognition based complete Car Security System
87. OFDM Based Wireless Encryption/Decryption of Transfer of Messages.
88. Synchronized DC Defibrillator with PC Interface
89. Stand-alone Synchronized DC Defibrillator with LCD Interface
90. RF Based Wireless Complete Body Scanning System Using WAP
91. RF Based Medi-Kits for Houses with Emergency Dialer.
92. RF Based Wire less Heart Beat Rate Monitoring System
93. Medicare System for Hospital Automation
94. Study and working of Peritoneal Dialysis with Model.
95. IR based human radiation detection online
96. PC based emergency ambulance calling system
97. PC based body temperature measurement and control
98. Automatic anesthesia feeder based on respiratory
99. Automatic anesthesia feeder based on resp temp with temp with model
100. Automatic anesthesia feeder based on HBC with model.
101. Blue tooth Enabled Wireless Communication with Handheld Device.
102. Advanced Sensors Controlled Bank Security System.
103. Home Networking and Security System With Wap
104. Tape less Voice Storage and Retrieval using APR9600.
105. Electro magnetic Proximity Card Reader with Weigand output based Access Control System with Double Level Security.
106. Electro magnetic Proximity Card Reader with Weigand output based Time and Attendance System.
107. Electro magnetic Proximity Card Reader with Weigand output based Security Cards.
108. EMPCR with Weigand output Based Electricity Billing Automation.
109. EMPCR with Weigand output Based Electricity Billing Automation with WAP.
110. Guard Supervisor for Industries.
111. Guard Alert System for Home Security System.
112. Guard Alert System for industries With Patrolling system.
113. Fire Alarming Control panel with Auto dialer to Fire Station.
114. Hardware Design for Pick and Place Robot
115. Fire Fighting Robotics with artificial intelligence
116. Fire Fighting Robotics With AI (Artificial Intelligence) and WAP
117. Cell Phone Controlled Two Axis Robotics with AI.
118. Cell Phone Controlled Three Axis Robotics with AI.
119. Mobile Phone Controlled Alive Human Detector using Robotics
120. Two Axis Stepper Controller / Driver with Opto-Isolation
121. Multi Axis Stepper Controller / Driver with Opto-Isolation
122. Two Axis Robotics With Artificial Intelligence (AI)
123. Three Axis Robotics With Artificial Intelligence (AI)
124. RF Based Wireless Multi Axis Robotics with WAP
125. PLC Ëœs for bottle filling station with conveyors
126. Automatic Control of Bottle Filling System Using PLC With Conveyor Model.
127. Embedded PIC Micro controller based Safety Road Control With WEB CAM
128. Embedded PIC Micro controller based Controlling of devices through Telephone Lines
129. DAS and Remote Control through Internet
130. Micro controller based system design for Electronics Laboratory
131. Wireless Home Automation System Using Telephone Lines with WAP
132. RF Based Wireless Encryption And Decryption Message Transfer System for Military Applications
133. Encoding and decoding technique for secured data communication
134. On Line Dynamic Code Acquisition For Spread Spectrum Systems
135. Single Photon Quantum Cryptography
136. Pseudo Random Code modulation based Secured Data Communication.
137. Frequency jammer as a life guard
138. Frequency jammer as a life guard with WAP
139. PC based data scanner/ logger for 8 “ channel
140. PC based data scanner/ logger with field programmable channel
141. Intelligent guided vehicle for collision prevention
142. Fuzzy Logic based Collision Prevention for vehicles.
143. Intelligent Application of Fuzzy Logic in Automatic Train Speed Control System.
144. Fuzzy logic based Traffic Control System - A Replacement strategy
145. Embedded controller for traffic controls
146. Automatic control for unmanned railway gate
147. Automatic control for unmanned railway gate with model
148. Automatic control for unmanned railway gate with WAP
149. Solar power for automatic water heating
150. Solar energy for Electrical Applications
151. Tracking Sunâ„¢s path for efficient use of Solar Cell with Model
152. Automated car parking system
153. PC based electronic weighing scale with set point
154. Bluetooth Enabled Advanced Data monitoring and control Using Hitech c.
155. Multi-Parameter Measurement System and Control with Graphs
156. WEB-SCADA 157. Multi Channel Voltage Scanner with SCADA
158. Micro controller based Position Control for Stepper Motor
159. Industrial Safety Measures System with Sensors and Web Cam
160. Industrial Safety Measures System with Sensors
161. Industrial Safety Measures System with Sensors with Voice Indication.
162. Attendance Marker System with IRC Reader
163. Attendance Marker System with IRC Reader and Face indicator
164. Categorized Alarm Annunciator using Embedded System
165. Categorized Alarm Annunciator using Embedded System with controls
166. Categorized Alarm Annunciator with Voice using Embedded System with controls
167. Micro controller based Boiler Management System
168. Priority Indicators in Alarm Annunciators
169. PC Based Programmable Temperature Controller for Furnaces
170. PC Based Programmable Temperature Controller for Cement Plant
171. 8 Channel Temp. Measurement System/Control with True Graphs
172. 8 Channel Temp. Measurement System with True Graphs
173. 8 Channel Temp. Measurement System with True Graphs with Voice indication
174. 8 Channel Multiset point Temperature controller with Different Time Period
175. Multichannel Missing Event Detector
176. Multichannel Missing Event Detector with Voice Indication
177. Battery Voltage and Current Monitoring for 8 Batteries
178. Master / Slave Control System for Process Industries
179. Embedded System based POSI-CAST controller for Dc-Dc Buck Convertor.
180. Electrical Station Variables Reader/Controller with True Graph and SCADA
181. Electrical Station Variable Reader/Controller with True Graph
182. Remote On/Off Controller for AC Motors with Parameter Monitoring
183. Remote Switching System for home appliances
184. Power Sharing of Transformers with WAP
185. Power Sharing of Transformers with auto protection
186. Computer Keyboard as a dual controller for switching Electrical devices
187. Dual control of Electrical devices through Computer Keyboard and H/W
188. Centralized Powerhouse Automation using WAP.
189. Slip Ring Induction motor Drive with slip Recovery using IGBT
190. DC motor Starter using MOSFET
191. Microcontroller Based Oil Temp/IND/CON
192. 3 Phase AC Motor using IGBT
193. Two / Four Quadrent chopper in Indian Military.
194. Ultrasonic Range Finder
195. AC Power line Monitoring motor generator application
196. Speed Control of AC Motor0
197. Speed Control of DC Motor with Field and Armature Control
198. DC Drive using IGBT
199. AC Drive using IGBT
200. Maximum Demand Indicator / Controller for Industries
201. Power Factor Correction Using Multiple Capacitor Banks
202. Electricity Billing Automation
203. Prepaid Electricity Billing Automation
204. Digital Tri Vector Meter
205. Multiple starter with overload protection
206. Multiple starter with overload protection with AI
207. Multiple starter with overload protection with WAP
208. Digital Timer with Thumbwheel setting with On and Off delay type
209. Digital Counter using Proximity Sensor
210. Digital Energy meter using Embedded Controller
211. Digital Energy meter with voice annunciation
212. DC Driver using SCR
213. Digital RPM Indicator using Proximity or Magnetic Pick up
214. Digital Frequency indicator
215. Digital Voltmeter using Embedded System
216. Digital Ammeter using Embedded System
217. Cyclic Timer using Embedded system
218. Remote Digital RPM Indicator using Proximity or Magnetic Pick up with SCADA
219. Remote Frequency indicator with SCADA
220. Length counter using Embedded system
221. Micro controller based access control system
222. Pc based data scanner/ logger for 8 “ channel
223. Pc based data scanner/ logger with field programmable channel
224. Embedded controller for traffic controls
225. High Pressure hose Test Rig for Brake line Manufacturing Industries
226. Embedded PIC Micro controller based Petrol Bunk Automation
227. Speed Control of an Electrical DC Vehicle
228. Fault Tolerant Neuro Controlled Level Processing panel
229. Embedded controller for non linear partially interacting process (NLPIP)
230. Power Distribution Management System using WAP
231. Virtual instrumentation for temperature controlled loop 232. Pc based attendance cum visitor management system
233. Multi Channel Voltage Scanner with SCADA
234. Micro controller based Position Control for Stepper Motor
235. PC Based Programmable Temperature Controller for Furnaces
236. PC Based Programmable Temperature Controller for Cement Plant.
237. Micro controller Based Multichannel PID Controller for temperature
238. Micro controller based Dedicated PID Controller for Temperature
239. PC Based Pollution Tester For Vehicles with WEB CAM Interface
240. PC Based Pollution Tester For Vehicles with CO Analyzer

Electrical Engineering Projects for Final Year

electrical engineering projects for final year


1. Transformer protection panel
2. Working Model of maglev
3. Maximum power point Tracking
4. Motorised wheel Chair
5. Controller of Electrical Vehicale
6. Deregulation of Energy Sector
7. Cathodic protection
8. Radial Feeder protection
9. PLC Based System
10. Numerical Relay
11. Measurement of electrical parameters
12. Variable Frequency Drive
13. 3 Phase Analayzer
14. Modeling and simulation of Congestion management in transmission sector of deregulated electricity market.
15. Electrical Bicycle
16. Survey of Industries in surat
17. Speed Control of D.C shunt motor using four Quadrant Chopper
18. Speed Control of Separately excited D.C motor using µP
19. Cyclo- converter 1- Phase to 1- Phase
20. Digital Filter Design & itâ„¢s Application
21. Computer Aided Power Flow Analysis
22. Microstepping of Unipolar Stepper Motor
23. Speed control of 3 - Phase Induction Motor by V / F method using PWM Technique
24. Measurement of inrush current in Transformer
25. Microprocessor based power factor measurement & control
26. 8085 based Protective Relay
27. Microcontroller based Digital Energy Meter
28. Electronic Power Generator using Transistor
29. Measurement of inrush current in Transformer
30. Microstepping of Unipolar Stepper Motor
31. Computer Aided Power Flow Analysis
32. Speed Control of D.C shunt motor using four Quadrant Chopper
33. Microprocessor based power factor measurement & control
34. Cycloconverter 1- Phase to 1- Phase
35. 8085 based Protective Relay
36. Speed Control of Separately excited D.C motor using µP
37. Microcontroller based Digital Energy Meter
38. Speed control of 3 - Phase Induction Motor by V / F method using PWM Technique
39. Digital Filter Design & itâ„¢s Application
40. Electrical Bicycle
41. Survey of Industries in surat
42. Electronic Power Generator using Transistor
43. Solar Tracking System
44. Working Model of Solar Power Plant
45. Speed Control of D.C Motor using D.C Drives
46. Prepaid Card Energy Meter
47. Vector Controlled AC Drive
48. Reciprocating Motor
a. / C Relay
49. Construction & Design of Three phase 1 H.P Motor
50. Micro-controller based differential protection of Transformer
51. Design Optimization of Three phase squirrel cage Induction Motor
52. Speed Control of D.C Motor using Simulation
53. Micro-controller based Control of any electrical Machine
54. Inverter (MOSFET based)
55. V / F Speed Control of Three Phase Induction Motor
56. Linear Induction Motor (Design & Performance, Analysis)
57. PLC Based Boiler Control System
58. Microprocessor based Robot
59. Power Factor correction using Microprocessor
60. 3 phase squirrel cage induction motor design
61. 3 phase squirrel cage induction motor design
62. Speed control of dc shunt motor
63. Protection of 3 phase induction motor
64. Speed control of universal motor using microcontroller
65. Computer Aided Design Of Transformer
66. Microprocessor based Power Meter
67. Microprocessor based Speed Control of Induction Motor
68. Data Acquisition System
69. UPS
70. GSM CONTROLLED DOOR LATCH OPENER WITH SECURITY DIALUP WITH CHANGEABLE TELEPHONE NUMBERS (BASED)

71. POWER GRID CONTROL THROUGH PC

72. i.V.R.S. SYSTEM FOR INDUSTRIAL CONTROL

73. RF CONTROL OF INDUCTION MOTORS AND OTHER INDUSTRIAL
74. LOADS

75. Microcontroller Based G.S.M. controlled Switch With Voice

76. Six Channel Petrochemical Fire Monitoring & Control Station

77. Based Token Number Display With Voice & Security

78. Home/Office Security System (Teleguard)

79. IBM PC HDD,FDD,PRINTER SIGNAL INDICATOR AND FAULT LOCATOR CARDS(SET OF THREE CARDS)

80. MINI LCD SCOPE

81. ELECTRONIC EYE BASED

82. ELECTRONIC EYE BASED WITH EVENT LOGGING ON PC

83. Hotel Power Management Through PC

84. µc Based PT- Temperature Controller

85. Microcontroller Based Code Lock With Security Telephone Dialer

86. REAL TIME CHANNEL DATA LOGGER

87. CH DATA LOGGER THROUGH RADIO LINK

88. Load Shedder

89. Home automation Through P.C.

90. inductance , capacitance and frequency meter.

91. PC TO PC LASER COMMUNICATION

92. PC TO PC FIBER- OPTIC COMMUNICATION

93. BILGE OIL WATER SEPARATOR

94. AUTOMATIC TOLL TAX

95. AUTOMATIC CONTROL OF UNMANNED RAIL GATE

96. AUTO-ANSWERING WITH SECURITY DIAL-UP

97. PROGRAMMABLE LOGIC CONTROLLER (PLC)

98. heart beat monitor (BASED)

99. INTELLIGENT SAUNA BATH CONTROL SYSTEM

100. REMOTE MONITORING AND ALARM ON PC USING RADIO LINK

101. EIGHT CHANNEL DATA LOGGER CBASED

102. CONTROL SYSTEM FOR MODERN HOUSE

103. PAIN MONITOR

104. PATIENT MONITORING SYSTEM

105. R.F. CONTROLLED INTELLIGENT ROBOT CAR WITH CORDLESS VIDEO-CAM .SENDS VIDEO & SOUND ON MONITOR/TV CONTINUOUSLY. CAN BE USED FOR SPYING PURPOSE RANGE YARDS RADIAL . BASED ON MICROCONTROLLER

106. PWER HOUSE MONITORING THROUGH RADIO FREQUENCY

107. DC MOTOR SPEED CONTROL USING RADIO FREQUENCY ()SUITABLE FOR ROBOTIC ARM (TWO ANGLE)

108. DC MOTOR SPEED CONTROL FROM PC COM PORT()SUITABLE FOR ROBOTIC ARM (TWO ANGLE)
109. DC MOTOR SPEED CONTROL THROUGH PUSH SWITCHES()

110. TELEPHONE CALLS LOGGER ( LOGS ALL incoming and outgoing CALLS TO PC)

111. RFID TX AND RX KIT WITH TWO IDS ( SECURITY APPLICATION)

112. RFID TX AND RX KIT WITH TWO IDS ( ROUTE MAP APPLICATION)

113. RFID TX AND RX KIT WITH TWO IDS ( ATTENDANCE REGISTER)

114. HOME APPLIANCES CONTROL THROUGH PC

115. SAFE LANDING SYSTEM
116. BUILD YOUR OWN // PROGRAMMER
117. BUILD YOUR OWN EMBEDDED DEVELOPMENT BOARD PC

118. REAL-TIME INDUSTRIAL PROCESS CONTROL AND MONITORING USING GSM PHONES

119. LINE FOLLOWER ROBOT
120. LIGHT FOLLOWER ROBOT
121. INFRA RED CONTROL FOR PC
122. DRIVER ALERT

123. CONTACT LESS TECHO GENERATOR
124. HEART BEAT MONITOR WITH WAVE ON LCD(PIC BASED)
125. IR FOLLOWER ROBOT
126. PARKING RADAR
127. MULTI CORE CABLE TESTER
128. KITCHEN TIMER
129. ROOM THERMOMETER
130. DIGITAL LOCK
131. PHOTIC PHONE
132. PIC LCF METER
133. RADIO FREQUENCY REMOTE CONTROL BOARD (CONTROL EIGHT RELAYS)
134. MICROCONTROLLER BASED SECURITY DIAL UP WITH EVENT LOGGING TO PC
135. HOME AUTOMATION USING GSM
136. GSM IVRS
137. AUTOMATIC TOLL TAX WITH VOICE USING
138. INDUSTRIAL AUTOMATION & MONITORING SYSTEM

Electronics mini Projects for Engineering Students

Hi I uploaded here a list of Electronics Projects  for Engineering Students. Choose any one topic and try to make it. Keep it up your work ahead.

1. Transistorised Logic Probe for TTL
2. Constant-Current Battery Charger
3. Multitone Siren
4. Generator Room Light
5. Liquid Level Alarm
6. PC Power Manager
7. Pyroelectric Fire Alarm
8. Telephone Call Recorder
9. USB Power Socket
10. Triple Power Supply
11. Smart Hearing Aid
12. Midnight Security Light
13. DuoPhone
14. Mini UPS System
15. Car-Reversing Horn With Flasher
16. Short-Circuit Protection in DC Low-Voltage Systems
17. Inverter for Soldering Iron
18. Skin Response Meter
19. Solar Panel based Charger and Small LED Lamp
20. Electronic Bicycle Lock
21. Remote-operated Master Switch
22. Automated Alarm Circuits
23. Traffic Baton
24. Laser-guided Door Opener
25. Three-Phase Appliance Protector
26. PC Multimedia Speakers
27. Aquarium Probe
28. Bicycle Indicator
29. Poor Manâ„¢s Hearing Aid
30. Portable Lamp Flasher
31. Staircase Light With Auto Switch-Off
32. Car Anti-theft Guard
33. USB Power Booster
34. Smart Vibration Sensor
35. Drinking Water alarm
36. Battery-level Indicator
37. PC Temperature Controller
38. Traffic Controller
39. Seismic Sensor
40. Dice With -Segment Display
41. Motorbike Alarm
42. Laptop Protector
43. Night Alert
44. Muscular Stimulator
45. Wireless Switch
46. Long-Range IR Transmitter
47. Electric Window Fence Charger
48. GLOW PLuG CONTROLLER
49. Versatile CMOS TTL Logic And Clock Probe
50. Tester For Remote Control
51. Automatic Low-Power Emergency Light
52. -Band Graphic Equaliser
53. Clock Timer
54. Fully Automatic Emergency Light
55. IR Music Transmitter and Receiver
56. Electronic Horn
57. Mobile Bug
58. LED Lighting for Christmas
59. Current Sensor
60. Bell-Cum Light Controller
61. Friendly Charger for Mobile Phones
62. Hearing Aid
63. Speed Control of DC Motor Using Pulse-Width Modulation
64. Remote-Controlled Fan Regulator
65. Low-Power Voltage Doubler
66. Shutter Guard
67. Desktop Power Supply
68. Mobile Shield
69. Infrared Firecracker Igniter
70. Automatic Phase Changer
71. Flying Saucer
72. Anti-Collision Rear Light
73. Light Fence
74. MAT Switch
75. Ultrasonic Proximity Detector
76. Ultrasonic Proximity Detector
77. Shadow Alarm
78. IR Burglar Deterrent
79. Versatile Water-Level Controller
80. Automatic-Off Timer For CD Players
81. Heat-Sensitive Switch
82. Sensitive Vibration Detector
83. Secret Bell
84. Variable Power Supply Using a Fixed-Voltage Regulator IC
85. Appliance Timer-Cum-Clap Switch
86. Telephone-Operated Calling System
87. Front Door Guard
88. Parrot-Sounding AC Doorbell
89. Fuel Reserve Indicator For Vehicles
90. Brake Failure Indicator
91. Safety Guard
92. Mains Supply Failure Alarm
93. Remote Control For Home Appliances
94. Micromotor Controller
95. Solar Bug
96. Multi-Melody Generator With Instrumental Effect
97. School-College Quiz Buzzer
98. Visual AC Mains Voltage Indicator
99. Simple Short-Wave Transmitter
100. Solar Lighting System
101. Infrared Bug
102. Picnic Lamp
103. Versatile Power Supply
104. Digital Dice
105. Remote-Controlled Power-Off Switch
106. Anti-Theft Alarm For Bikes
107. DC Motor Control Using A Single Switch
108. Solidstate Remote Control Switch
109. Flashing-Cum-Running Light
110. Quality FM Transmitter
111. Stabilised Power Supply With Short-Circuit Indication
112. Little Door Guard
113. Stress Meter
114. Teleconferencing System
115. Medium-Power FM Transmitter
116. Smart Cellphone Holder
117. Simple Digital Security System
118. Digital Audio/Video Input Selector
119. Auto Turn-Off Battery Charger
120. Atmel AVR ISP Dongle
121. Audio Amplifier for Personal Stereo
122. Musical Light Chaser
123. Water-Level Controller
124. Hit Switch
125. Fire Alarm Using Thermistor


126. Low-Cost Electronic Quiz Table
127. Mobile Cellphone Charger
128. Smart Foot Switch
129. Programmable Timer for Appliances
130. Electronic Watchdog
131. Automatic School Bell
132. Digital Stop Watch
133. Cell-Phone-Controlled Audio/Video Mute Switch
134. Washing Machine Motor Controller
135. Low-Cost Hearing Aid
136. Over-Under-Voltage Protection of Electrical Appliances
137. Parallel Telephone With Secrecy and Call Prevention
138. Voltage-Based Controller For Switches
139. DTMF Receiver IC MT Tester
140. PC-Based DC Motor Speed Controller
141. Child's Lamp
142. Watchman Watcher
143. Highway Alert Signal Lamp
144. Anti-Bag-Snatching Alarm
145. LED-Based Message Display
146. Multiband CW Transmitter
147. Automatic Night Lamp With Morning Alarm
148. Touch Dimmer
149. Mosfet-Based Preamplifier for FM Radio DXing
150. Non-Contact Power Monitor
151. Remote-Operated Musical Bell
152. Electronic Motor Starter
153. Telephone Receiver
154. Pulse Generator
155. Infrared Remote Control Timer
156. Clap Switch
157. Multi-Switch Doorbell With Indicators
158. Song Number Display
159. Lead-Acid Battery Charger With Voltage Analyser
160. Electronic Security System
161. Three-Colour Display Using Bicolour LEDs
162. Ultra-Bright LED Lamp
163. Computerised Universal Timer
164. Number Guessing Game
165. PC-Based Oscilloscope
166. Intruder Radio Alert System
167. Flashing Beacon
168. Knock Alarm
169. Automated Traffic Signal Controller
170. Infrared Toy Car Motor Controller
171. Mains Manager
172. Crystal-Controlled Time-Base Generator
173. Mains Operated Christmas Star
174. Music On-Hold For Telephones
175. Solidstate Switch For DC-Operated Gadgets
176. Ding-Dong Bell
177. IR Remote Switch
178. Shortwave Transmitter
179. FM Booster
180. Laser Torch-Based Voice Transmitter And Receiver
181. Mobile Phone Battery Charger
182. Fastest Finger First Indicator
183. Condenser Mic Audio Amplifier
184. DarkRoom Timer
185. Speller Effect Sign Display
186. Stereo Tape Head Preamplifier For PC Sound Card
187. Generation Of -Sec. Pulses Spaced -Sec. Apart
188. -Line Telephone Sharer
189. Musical ËœTouchâ„¢ Bell
190. Automatic Heat Detector
191. Single Phase Electronic Starter
192. Precision Amplifier With Digital Control
193. Precision Attenuator With Digital Control
194. Infrared Electronic Shooting Game
195. A Hierarchical Priority Encoder
196. Digital Mains Voltage Indicator
197. Water-Level Controller
198. Invisible Broken Wire Detector
199. Anti-Theft Security For Car Audios
200. Simple Telephone Ring Tone Generator
201. Versatile Zener Diode Tester
202. DTMF Proximity Detector
203. Under-/Over-Voltage Beep for Manual Stabiliser
204. -Step Digital Power Supply
205. Auto Shut-off For Cassette Players And Amplifiers
206. House Security System
207.Digital Timer Enhancement
208.Water-Level Indicator Using 7-segment display
209.Automatic Light Controller Using 7806
210.Spy Ear
211. Transistorised Logic Probe for TTL
212. Constant-Current Battery Charger
213. Multitone Siren
214. Generator Room Light
215. Liquid Level Alarm
216. Four-Stage FM Transmitter
217. USB Power Socket
218. Triple Power Supply
219. Smart Hearing Aid
220. Midnight Security Light
221. Automated Alarm Circuits
222. Traffic Baton
223. Numeric Water-level Indicator
224. Versatile Probe
225. Electronic Candles
226. Simple Sensitive Remote Control Tester
227. Pyroelectric Fire Alarm
228. Telephone Call Recorder
229. DuoPhone
230. Mini UPS System
231. Car-Reversing Horn With Flasher
232. Short-Circuit Protection in DC Low-Voltage Systems
233. Inverter for Soldering Iron
234. PC Power Manager
235. Skin Response Meter
236. Solar Panel based Charger and Small LED Lamp
237. Tester For Remote Control
238. Automatic Low-Power Emergency Light
239. Mobile Bug
240. LED Lighting for Christmas
241. Current Sensor
242. Electronic Bicycle Lock
243. Remote-operated Master Switch
244. Laser-guided Door Opener
245. PC Temperature Controller
246. Battery-level Indicator
247. Traffic Controller
248. Night Alert
249. Muscular Stimulator
250. Wireless Switch
251. Electric Window Fence Charger
252. Three-Phase Appliance Protector
253. Aquarium Probe
254. Bicycle Indicator
255. Poor Manâ„¢s Hearing Aid
256. Portable Lamp Flasher
257. Car Anti-theft Guard
258. USB Power Booster
259. Darkroom Timer
260. Water level indicator With Alarm
261. Smart Vibration Sensor
262. Drinking Water alarm
263. Glow Plug Controller
264. Seismic Sensor
265. Dice With 7-Segment Display
266. Motorbike Alarm
267. Laptop Protector
268. Shutter Guard
269. Desktop Power Supply
270. Mobile Shield
271. Infrared Firecracker Igniter
272. Automatic Phase Changer
273. Automatic Speed Controller For Fans and Coolers
274. Telephone line based Audio Muting
275. Precision Digial AC Power controller
276. Phone BroadCaster
277. Long-range FM Transmitter
278. Self Switch power supply
279. Electrical Equipment control using PC
280. Low cost Transistorised intercom Flying Saucer
281. Anti-Collision Rear Light
282. Light Fence
283. MAT Switch
284. 5-Band Graphic Equaliser
285. Clock Timer
286. Fully Automatic Emergency Light
287. IR Music Transmitter and Receiver
288. Electronic Horn
289. PC Multimedia Speakers
290. Precision Amplifier with Digital Control
291. Electronic Card-Lock System
292. Blown Fuse Indicator
293. Simple Intercom Circuit
294. LED-Based Message Display
295. Telephone Receiver
296. Water-LeveL Controller
297. Song Number Display
298. Fastest-finger-first-indicator
299. Musical 'Touch' Bell
300. Audio-Visual Extra Ringer For Phone
301. Contactless AC Mains Voltage Detector
302. Fire Alarm
303. Precison 1Hz Clock Generator Using Chip-On-Board
304. Short Wave AM Transmitter
305. Solidstate Auto Power off on Mains Failure
306. Automatic emergency tourch
307. Automatic Emergency Light
308. Versatile CMOS TTL Logic and Clock Probe

309. Ramp Controlled Light
310. 7MHz CW AM QRP Transmitter
311. Auto Reset Over-Under Voltage Cut-Out
312. Shortwave transmitter
313. Programmable Door-Bell with Flashing LEDS
314. Precision Attenuater with Digital Control
315. Parallel telephone with Secrecy
316. A Hierarchical Priority Encoder
317. Digital Mains Voltage indicator
318. Low cost PCO Billing meter

319. Cordless Phone Backup
320. Sleep Switch cum wake timer
321. Simple Analogue to digital converter
322. Digital switching system
323. Ultra Low Drop linear regulator
324. 40-Meter Direct conversion receiver
325. Frequency measurement using PC
326. Miniature strobe light
327. CD-Rom Drive as Digital-Audio CD Player
328. Clap Remote
329. Smart Phone Light
330. Handy Zener Diode tester
331. Telephone Line Vigilant
332. High & Low Voltage cutout
333. Color Sensor
334. Running Message Display
335. Low current high voltage power supply
336. Intelligent Switch
337. AUTOMATIC TEMPERATURE CONTROLLED FAN
338. Programmable LED Indicator
339. Touch Sensitive Musical Bell With Timer
340. Staircase Light With Auto Switch-Off
341. 2-Line Intercom-Cum-Telephone Line Changeover Circuit
342. Magic Light
343. Teleremote Control
344. Telephone Conversation Recorder
345. Automatic Dual Output display
346. Long Range IR Transmitter
347. Digital Dice with numeric display
348. Security System Switcher
349. Watch Dog for Telephones
350. UPS for Cordless Telephones
351. Economical Pump Controller
352. Tiny Dew Sensor
353. Computerised Morse Code Generator Transmitter
354. Telecom Headset
355. Telephone Ringer Using Timer ICs
356. Power Supply failure alarm
357. Protection for your electrical Appliance
358. Simple Code Lock
359. PC-based 7 segment rolling display
360. Fuel Reserve Indicator For Vehicles
361. Brake Failure Indicator
362. Automatic Room Power Control
363. Fuild Level Detector
364. Accurate Electronic Stop Watch
365. Sensitive Temperature Switch Telephone call meter using calculator and COB
366. Magnetic Proximity switch
367. Electronic Scoring game
368. Digital Speedometer
369. House Security System
370. Ultrasonic Proximity Detector
371. Secret Bell
372. Variable Power Supply Using a Fixed-Voltage Regulator IC
373. Appliance Timer-Cum-Clap Switch
374. Telephone-Operated Calling System
375. Front Door Guard
376. Bell-Cum Light Controller
377. Friendly Charger for Mobile Phones
378. Hearing Aid
379. Speed Control of DC Motor Using Pulse-Width Modulation
380. Remote-Controlled Fan Regulator
381. Low-Power Voltage Doubler
382. Parrot-Sounding AC Doorbell
383. Multi-Melody Generator With Instrumental Effect
384. School-College Quiz Buzzer
385. Visual AC Mains Voltage Indicator
386. Simple Short-Wave Transmitter
387. Solar Lighting System
388. Infrared Bug
389. Picnic Lamp
390. Versatile Power Supply
391. Ultrasonic Proximity Detector
392. Shadow Alarm
393. IR Burglar Deterrent
394. Versatile Water-Level Controller
395. Automatic-Off Timer For CD Players
396. Heat-Sensitive Switch
397. Sensitive Vibration Detector
398. Digital Dice
399. Remote-Controlled Power-Off Switch
400. Non-Contact Power Monitor
401. Remote-Operated Musical Bell
402. Electronic Motor Starter
403. Washing Machine Motor Controller
404. Over-Under-Voltage Protection of Electrical Appliances
405. Low-Cost Hearing Aid
406. Little Door Guard
407. Stress Meter
408. Medium-Power FM Transmitter
409. Teleconferencing System
410. Smart Cellphone Holder
411. Safety Guard
412. Mains Supply Failure Alarm
413. Remote Control For Home Appliances
414. Micromotor Controller
415. Solar Bug
416. Simple Digital Security System
417. Digital Audio - Video Input Selector
418. Auto Turn-Off Battery Charger
419. Atmel AVR ISP Dongle
420. Audio Amplifier for Personal Stereo
421. Musical Light Chaser
422. Hit Switch
423. Water-Level Controller
424. Fire Alarm Using Thermistor
425. Electronic Watchdog
426. Automatic School Bell
427. Anti-Theft Alarm For Bikes
428. DC Motor Control Using A Single Switch
429. Solidstate Remote Control Switch
430. Flashing-Cum-Running Light
431. Quality FM Transmitter
432. Stabilised Power Supply With Short-Circuit Indication
433. Digital Stop Watch
434. Cell-Phone-Controlled Audio Video Mute Switch
435. PC-Based DC Motor Speed Controller
436. Under-Over-Voltage Beep for Manual Stabiliser
437. Child's Lamp
438. Watchman Watcher
439. Highway Alert Signal Lamp
440. Low-Cost Electronic Quiz Table
441. Mobile Cellphone Charger
442. Anti-Theft Security For Car Audios
443. Simple Telephone Ring Tone Generator
444. DTMF Proximity Detector
445. Versatile Zener Diode Tester
446. 15-Step Digital Power Supply
447. Smart Foot Switch
448. Programmable Timer for Appliances
449. Anti-Bag-Snatching Alarm
450. Multiband CW Transmitter
451. Automatic Night Lamp With Morning Alarm
452. Touch Dimmer
453. Mosfet-Based Preamplifier for FM Radio DXing
454. Voltage-Based Controller For Switches
455. DTMF Receiver IC MT8870 Tester
456. Pulse Generator
457. Infrared Remote Control Timer
458. Multi-Switch Doorbell With Indicators
459. Electronic Security System
460. Lead-Acid Battery Charger With Voltage Analyser
461. Ultra-Bright LED Lamp
462. Three-Colour Display Using Bicolour LEDs
463. Computerised Universal Timer
464. Number Guessing Game
465. Intruder Radio Alert System
466. Flashing Beacon
467. Knock Alarm
468. Automated Traffic Signal Controller
469. Infrared Toy Car Motor Controller
470. Mains Manager
471. Crystal-Controlled Time-Base Generator
472. Mains Operated Christmas Star

473. Laser Torch-Based Voice Transmitter And Receiver
474. Mobile Phone Battery Charger
475. Condenser Mic Audio Amplifier
476. Speller Effect Sign Display
477. Stereo Tape Head Preamplifier For PC Sound Card
478. Invisible Broken Wire Detector
479. Auto Shut-off For Cassette Players And Amplifiers
480. Generation Of 1-Sec. Pulses Spaced 5-Sec. Apart
481. 9-Line Telephone Sharer
482. Automatic Heat Detector
483. Single Phase Electronic Starter
484. Infrared Electronic Shooting Game
485. Add-On Stereo Channel Selector
486. Telephone Number Display
487. Luggage Security System
488. Universal High-Resistance Voltmeter
489. Time Switch
490. Charge Monitor For 12V Rechargeable Lead-Acid Battery
491. Dual-Channel Digital Volume Control
492. Infrared Cordless Headphone
493. Simple Low-Cost Digital Code Lock
494. Electronic Jam
495. Wiper Speed Controller
496. IC Controlled Emergency Light With Charger
497. Colour Sensor
498. FM Transmitter For Channel Changer Music On-Hold For Telephones
499. Solidstate Switch For DC-Operated Gadgets
500. Ding-Dong Bell
501. IR Remote Switch
502. FM Booster

Shop Details at Lajpat Rai Market

Components and Shops

Buy transformers from shop no  304 at Lajpat Rai Market (Guru Transformers).

Buy miscellaneous components (Resistors, capacitors etc) from shop number 403  

Buy ICs, SMD components, Microcontrollers, voltage regulators etc. from Shop no 614 (Mehta brothers)

Buy heat sinks from shop no 31

Order components from Pulsar Electronics (Mumbai) by COD. Contact them  Phone: (022)-56990440, 56680217, mobile: 09821252230 (Attn: Priyank). Email: pulsarele@vsnl.com

For Atmel components: Oriole Electronics Pvt. Ltd. 116, Vardhman Tower, Preet Vihar Community Centre, New Delhi 110092. Tel: 011-22454525. Attn: Mr. Nair

Buy general purpose PCBs at shop number 432 Lajpat Rai market .Or  order them from     .

Buy all sorts of connectors, fuse holders from shop number 218 Lajpat Rai market

Buy all kinds of connecting wires from shop 331, Lajpat Rai market

A list of shops at Lajpat Rai Market, Delhi that sell electronics stuff in small quantities

Shop Number	Stuff you'll get from there
404	Resistors, Capacitors, LEDs, Wires
304	Transformers
496	Ferrite Cores
338	Transistors
594	Passives and Power Devices
31	Heat Sinks
331	Hook-up Wires (for breadboarding)
614	Almost all ICs and connectors
810,321,423	Motors
629	Almost everything but is a bit too costly
363	All sorts of sensors, soldering irons and more

Resistor Power Rating

BEST SITE FOR LEARNING ELECTRONICS AND  TUTORIALS ARE....
http://www.electronics-tutorials.ws

Resistor Power Rating

When an electrical current passes through a resistor, electrical energy is lost by the resistor in the form of heat and the greater this current flow the hotter the resistor will get. This is known as the Resistor Power Rating. Resistors are rated by the value of their resistance and the power in watts that they can safely dissipate based mainly upon their size. Every resistor has a maximum power rating which is determined by its physical size as generally, the greater its surface area the more power it can dissipate safely into the ambient air or into a heatsink.

A resistor can be used at any combination of voltage (within reason) and current so long as its "Dissipating Power Rating" is not exceeded with the resistor power rating indicating how much power the resistor can convert into heat or absorb without any damage to itself. The Resistor Power Rating is sometimes called the Resistors Wattage Rating and is defined as the amount of heat that a resistive element can dissipate for an indefinite period of time without degrading its performance.

The power rating of resistors can vary a lot from less than one tenth of a watt to many hundreds of watts depending upon its size, construction and ambient operating temperature. Most resistors have their maximum resistive power rating given for an ambient temperature of +70^oC or below.

Electrical power is the rate in time at which energy is used or consumed (converted into heat). The standard unit of electrical power is the Watt, symbol W and a resistors power rating is also given in Watts. As with other electrical quantities, prefixes are attached to the word "Watt" when expressing very large or very small amounts of resistor power. Some of the more common of these are:

Electrical Power Units

Unit	Symbol	Value	Abbreviation
milliwatt	mW	1/1,000th watt	10-3 W
kilowatt	kW	1,000 watts	103 W
megawatt	MW	1,000,000 watts	106 W

Resistor Power (P)

We know from Ohm's Law that when a voltage is dropped across a resistor, a current will be passed through the resistor producing a product of power. In other words, if a resistor is subjected to a voltage, or if it conducts a current, then it will always consume power and we can superimpose these three quantities of power, voltage and current into a triangle called a Power Triangle with the power dissipated as heat in a resistor at the top and the current and the voltage at the bottom as shown.

The Resistor Power Triangle

The above power triangle is great for calculating the power dissipated in a resistor if we know the values of the voltage across it and the current flowing through it. But we can also calculate the power dissipated by a resistance by using Ohm's Law. Ohms law allows us to calculate the power dissipation given the resistance value of the resistor. By using Ohms Law it is possible to obtain two alternative variations of the above expression for the resistor power if we know the values of only two, the voltage, the current or the resistance as follows:

[ P = V x I ]      Power  = Volts  x  Amps

[ P = I² x R ]      Power  = Current²  x  Ohms

[ P = V² ÷ R ]      Power  = Volts²  ÷  Ohms

The electrical power dissipation of any resistor in a DC circuit can be calculated using one of the following three standard formulas:

• 
  Where:
•       V  is the voltage across the resistor in Volts
•       I  is in current flowing through the resistor in Amperes
•       R  is the resistance of the resistor in Ohm's (Ω)

As the dissipated resistor power rating is linked to their physical size, a 1/4 (0.250)W resistor is physically smaller than a 1W resistor, and resistors that are of the same ohmic value are also available in different power or wattage ratings. Carbon resistors, for example, are commonly made in wattage ratings of 1/8 (0.125)W, 1/4 (0.250)W, 1/2 (0.5)W, 1W, and 2 Watts.

Generally speaking the larger their physical size the higher its wattage rating. However, it is always better to select a particular size resistor that is capable of dissipating two or more times the calculated power. When resistors with higher wattage ratings are required, wirewound resistors are generally used to dissipate the excessive heat.

Type	Power Rating	Stability
Metal Film	Very low at less than 3W	High 1%
Carbon	Low at less than 5W	Low 20%
Wirewound	High up to 500W	High 1%

Power Resistors

Wirewound power resistors come in a variety of designs and types, from the standard smaller heatsink mounted aluminium body 25W types as we have seen previously, to the larger tubular 1000W ceramic or porcelain power resistors used for heating elements. The resistance value of wirewound resistors is very low (low ohmic values) compared to the carbon or metal film types. The resistive range of a power resistor ranges from less than 1Ω (R005) up to only 100kΩ's as larger resistance values would require fine gauge wire that would easily fail.

Typical Power Resistor

Low ohmic, low power value resistors are generally used for current sensing applications were, using ohm's law the current flowing through the resistance gives rise to a voltage drop across it. This voltage can be measured to determine the value of the current flowing in the circuit. This type of resistor is used in test measuring equipment and controlled power supplies.

The larger wirewound power resistors are made of corrosion resistant wire wound onto a porcelain or ceramic core type former and are generally used to dissipate high inrush currents such as those generated in motor control, electromagnet or elevator/crane control and motor braking circuits. These types of resistors have standard power ratings up to 500W and are connected together to form resistance banks.

Another useful feature of wirewound power resistors is in the use of heating elements like the ones used for electric fires, toaster, irons etc. In this type of application the wattage value of the resistance is used to produce heat and the type of alloy resistance wire used is generally made of Nickel-Chrome (Nichrome) allowing temperatures up to 1200^oC.

All resistors whether carbon, metal film or wirewound obey Ohm´s Law when calculating their maximum power (wattage) value. It is also worth noting that when two resistors are connected in parallel then their overall power rating is increased. If both resistors are of the same value and of the same power rating, then the total power rating is doubled.

Example No1

What is the maximum power rating in Watts of a resistor which has a voltage of 12V across it and a current of 50mA flowing through it.

Given that we know the voltage and current, we can substitute the values into P = V x I.

Example No2

Calculate the maximum safe current that can pass through a 1.8KΩ resistor rated at 0.5W.

Given that we know the resistor power rating and resistance, we can substitute the values into P = I²R.

All resistors have a Maximum Dissipated Power Rating, which is the maximum amount of power it can safely dissipate without damage to itself. Resistors which exceed their maximum power rating tend to go up in smoke, usually quite quickly, and damage the circuit they are connected to. If a resistor is to be used near to its maximum power rating then some form of heatsink or cooling is required.

Resistor power rating is an important parameter to consider when choosing a resistor for a particular application. The job of a resistor is to resist current flow through a circuit and it does this by dissipating the unwanted power as heat. Selecting a small wattage value resistor when high power dissipation is expected will cause the resistor to over heat, destroying both the resistor and the circuit.

Thus far we have considered resistors connected to a steady DC supply, but in the next tutorial aboutResistors, we will look at the behaviour of resistors that are connected to a sinusoidal AC supply, and show that the voltage, current and therefore the power consumed by a resistor used in an AC circuit are all in-phase with each other.

 

How To Start With Robotics part I

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 Robotics part I

Usually people come to robotics because the like to thinker or they are curious about technology. Either way this is a great way to learn because robotics touches so many fields like electronics, mechanics , software,artificial intelligence.And is a great  and engaging way for children to learn while in the same time playing. Since robotics is such a vast field, it can be sometimes intimidating to the newcomer.
Fortunately are plenty of resources for any age and with prices starting from free to thousands of dollars.



Printed Magazines

Fortunately those magazines have online presence and are very helpful to find new projects and resources.
Robot magazine contains a lot of info about kits , electronic boards, algorithm description.
Make  magazine is full of projects from many fields but is a great resource to find tools,and to get inspired.

Robotic Related Software

The Pyrobot Simulator -for medium to advanced users

ROS(Robotic Operating system) .This is the holy grail of robotics. It runs on top of Linux , Windows and
has drivers for hundreds of sensors , navigation algorithms,  basically everything to create a truly autonomous system.It has a simulator that helps to test the algorithms.

Microsoft Robotics Studio is a Windows development tools that also includes a simulator.

Robotic kits
Fortunately the market is flooded with robotic kits.Cheapest kits allow you to put the robot together with minimum amount of tools, and then the robot executes a simple task, like driving and turning when on obstacle is reached.

Book PDF Link

INTRODUCTION TO MACHINE LEARNING

How to Calculate Resistor Wattage

   Resistors can have wattage ranges that start from 0.03 watts to kilowatts and higher. Resistors can allow only a limited current amount passing through them.Once the current passes through the resistor , it produces heat.If the heat is too great , then the resistor will burn down. In the resistor datasheet there is a parameter called permissible Temperature.Once the temperature is reached the resistor is loosing its characteristics. One way to lower the temperature is to use heat sinks, but is not always possible or desirable.
In order to calculate the wattage we need to know the voltage and the resistance and Ohm's law.Also we need the formula for power
which is P(power)=V(voltage) * I(current)
As we see we already have the voltage, so we need to find the current. From Ohm's law  R(resistance)=V(voltage) / I(current)

we transform the formula to I =V / R
so the power formula becomes

P=(V *V) / R

After we found the power that the resistor requires we have to find a resistor that will handle that power.
And also temperature will degrade the capacity of the resistor to handle power.For example a thin film resistor will handle 80% of power dissipation at 85 degrees Celsius and 50% at 100 degrees Celsius.
So it would be advisable to add a lot of margin . So having a resistor with at least double the wattage required would be advisable.
One problem with having resistors with bigger power dissipation is their size.Increasing the size of the resistor will increase the size of the board which will increase the price.

For more you also see robogia.com