IndianEngineer

ProjectsectsBazaar.in

LATEST Embedded Project’s for 2015

LATEST Embedded Project’s for 2015 Updated , Final year Projects list, Semister Projects

LATEST Embedded Project’s for 2014

Project Name

  • RFID BASED ACCESS CONTROL SYSTEM……………………………………12000/-
  •  THUMB SCANNER BASED ATTENDANCE SYSTEM………………………… 16000/-
  • HOME SECURITY SYSTEM WITH GSM ALERTING (using GSM modum)….16000/-
  • SPEECH RECOGNITION BASED SECURITY SYSTEM……………………12000/-
  • RFID BASED ID RECOGNITION SECURITY SYSTEM……………………..12000/-
  •  ALCOHOL AND LPG BASED BLACK BOX WITH GSM ALERTING………………16000/-
  • Speech Based Robotic Car………………………………………………………….12000/-
  • GPS based navigation system…………………………………………………………16000/-
  •  Vehicle anti-collision using IR signals.…………………………………..9000/-
  • Controller Area Network ………………………………………………………9000/-
  • Finger print based Evm……………………………………………….. 14000/-
  •  IVRS for colleges and schools…………………………………………. 14000/-
  • Railway Accident Monitoring System (using RFID)…………………16000/-
  • Bus fare pay system for passengers ………………………………..15500/-
  • Gas detection robot……………………………………………..15500/-
  • REGENERATIVE   BRAKING SYSTEM………………..11900/-
  •  STEERING CONROLLED HEADLIGHT…………………9900/-
  • HYDRAULIC BRAKING SYSTEM FOR CAR/IND. APPLICATION……….10900/-
  • TELEMEDICINE SYSTEM(gsm)…………………………….16900/-
  • smart card  identification system………………………………………10900/-

Visit Contact us Section to Get these projects Now! or Call 9911440074

March 1, 2015 Posted by | Microcontroller projects, project ideas, projects list | , , , , , , , , , | 17 Comments

Automatic railway Track Switching And Gate control Project

Final Year Project By IndianEngineer Group

Automatic Track Swithc And Gate Control Project Call us At 9530140501 to Get It Now

projects in Delhi,Ghaziabad,Rajasthan,Chandigarh,Gurgaon,District Centre,Janak Puri,New Delhi,India

February 20, 2010 Posted by | Automatic Railway Gate Control And Track Swithcing | | 13 Comments

Simple Electronic Combination Lock using IC LS 7220

Simple Electronic Combination Lock using IC LS 7220

Simple Electronic Combination Lock using IC LS 7220

Description

This is the circuit diagram of a simple electronic combination lock using IC LS 7220.This circuit can be used to activate a relay for controlling (on & off) any device when a preset combination of 4 digits are pressed.The circuit can be operated from 5V to 12V.

To set the combination connect the appropriate switches to pin 3,4,5 and 6 of the IC through the header.As an example if S1 is connected to pin 3, S2 to pin 4 , S3 to pin 5, S4 to pin 6 of the IC ,the combination will be 1234.This way we can create any 4 digit combinations.Then connect the rest of the switches to pin 2 of IC.This will cause the IC to reset if any invalid key is pressed , and entire key code has to be re entered.

When the correct key combination is pressed the out put ( relay) will be activated for a preset time determined by the capacitor C1.Here it is set to be 6S.Increase C1 to increase on time.

For the key pad, arrange switches in a 3X4 matrix on a PCB.Write the digits on the keys using a marker.Instead of using numbers I wrote some symbols!.The bad guys will be more confused by this.

Circuit Diagram .Click to Enlarge.                     Pin Assignment of LS7220.

lock-ls-7220.jpg                                                          ls-7220-pin-ass.jpg
Parts List 

C1              1   1uF 25V Electrolytic Capacitor
C2              1    220uF 25V Electrolytic Capacitor
R1              1    2.2K 1/4W Resistor
Q1              1    2N3904 NPN Transistor    2N2222
D1              1    1N4148 Rectifier Diode    1N4001-1N4007
K1              1    12V SPDT Relay    Any appropriate relay with 12V coil
U1             1     LS7220 Digital Lock IC
S1-S12    12    SPST Momentary Pushbutton    Keypad (see notes)
HD1          1    12 Position Header

 

www.indianengineer.wordpress.com

www.indianengineer.wordpress.com

email Us at

Freshersblog@gmail.com

October 5, 2009 Posted by | circuit, project ideas | | Leave a comment

Fire alarm circuit

Fire alarm circuit

Fire alarm circuit

Description.

Here is a simple fire alarm circuit based on a LDR and lamp pair for sensing the fire.The alarm works by sensing the smoke produced during fire.The circuit produces an audible alarm when the fire breaks out with smoke.

When there is no smoke the light from the bulb will be directly falling on the LDR.The LDR resistance will be low  and so the voltage across it (below .6V).The transistor will be OFF and nothing happens.When there is sufficient smoke to mask the light from falling on LDR, the LDR resistance increases and so do the voltage across it.Now the transistor will switch to ON.This gives power to the IC1 and it outputs 5V.This powers the tone generator IC UM66 (IC2)  to play a music.This music will be amplified by IC3 (TDA 2002) to drive the speaker.

The diode D1 and D2 in combination drops 1.4 V to give the rated voltage (3.5V ) to UM66 .UM 66 cannot withstand more than 4V.
Circuit diagram with Parts list.fire-alarm-circuit

 

Notes. 

  • The speaker can be a 8Ω tweeter.
  •  POT R4 can be used to adjust the sensitivity of the alarm.
  • POT R3 can be used for varying the volume of the alarm.
  • Any general purpose NPN transistor(like BC548,BC148,2N222) can be used for Q1.
  • The circuit can be powered from a 9V battery or a 9V DC power supply.
  • Instead of bulb you can use a bright LED with a 1K resistor series to it.

www.indianengineer.wordpress.com

www.indianengineer.wordpress.com

email Us at

Freshersblog@gmail.com

October 5, 2009 Posted by | detector, project ideas, SENSORS | , , | 2 Comments

Lead acid battery charger circuit

Lead acid battery charger circuit

Lead acid battery charger circuit

Description

Here is a lead acid battery charger circuit using IC LM 317.The IC here provides the correct charging voltage for the battery.A battery must be charged with 1/10 its Ah value.This charging circuit is designed based on this fact.The charging curent for the battery is controlled by Q1 ,R1,R4 and R5. Potentiometer R5 can be used to set the charging current.As the battery gets charged the the current through R1 increases .This changes the conduction of Q1.Since collector of Q1 is connected to adjust pin of IC LM 317 the voltage at the output of of LM 317 increases.When battery is fully charged charger circuit reduces the charging current and this mode is called trickle charging mode.

Circuit Diagram with Parts List.

battery-charger.jpg

Notes .

  • Connect a battery to the circuit in series with a ammeter.Now adjust R5 to get the required charging current. Charging current = (1/10)*Ah value of battery.
  • Input to the IC must be minimum 15V to get 12 V for charging the battery .Take a look at the data sheet of LM 317 for better understanding.
  • Fix LM317 with a heat sink.

www.indianengineer.wordpress.com

www.indianengineer.wordpress.com

email Us at

Freshersblog@gmail.com

October 5, 2009 Posted by | circuit, project ideas | | Leave a comment

Infrared motion detector circuit

Infrared motion detector circuit

Infrared motion detector circuit

Description.

Here is the circuit diagram of an infrared motion detector that can be used to sense intrusions.Infra red rays reflected from a static object will be in one phase, and the rays reflected from a moving object will  be in another phase.The circuit uses this principle to sense the motion.

The IC1 (NE 555)  is wired as an astable multivibrator .The IR diode connected at the output of this IC produces infrared beams of frequency 5Khz.These beams are picked by the photo transistor Q1 .At normal condition ie; when there is no intrusion the output pin (7) of IC2 will be low.When there is an intrusion the phase of the reflected waveforms has a difference in phase and this phase difference will be picked by the IC2.Now the pin 7 of the IC 2 goes high to indicate the intrusion.An LED or a buzzer can be connected at the output of the IC to indicate the intrusion.

Circuit diagram with Parts list.

ir-motion-detector-circuit
Notes.

  • Comparators IC2a and IC2b are belonging to the same IC2  (LM1458).So the power supply is shown connected only once.No problem.
  • When there is disturbance in the air or vehicles passing nearby,the circuit may get false triggered.
  • POT R5 can be used for sensitivity adjustment.

www.indianengineer.wordpress.com

www.indianengineer.wordpress.com

email Us at

Freshersblog@gmail.com

October 5, 2009 Posted by | detector, project ideas | | 7 Comments

Long Range FM Transmitter 1

Long Range FM Transmitter 1

Long Range FM Transmitter 1

How to make a long range FM transmitter at low cost

Description

The use of transmitters which have a more powerful output than the ‘flea-power’ are sometimes required when there are many obstacles in the path of the surveillance transmitter and monitoring station receiver, or the distance between them is too far so as to make a low powered device feasible. Whereas a typical microtransmitter will produce an RF power in the order of just a few milliwatts, i.e. a few thousandths of a watt, the VHF-FM transmitter described has a power output of between around a half and 2 watts, depending on the power source, which may be anywhere between 6 volts and 30 volts d.c. The battery or batteries should be of the alkaline high power type, since the current drain will be found to be relatively higher when compared to microtransmitter current drain. The power output of this device is somewhat proportional to the current drain and so therefore both may be decreased by altering the value of R6 to a higher resistance, or a variable resistor with a value of around 1k may be introduced in series with the existing R6, so as to give a variable power output. The variable resistor must not be a wirewound device because this would act as an inductor which will cause feedback problems.The audio input to the power oscillator, which incidentally is formed by TR2 and associated components, is derived from a piezoelectric microphone which drives the simple audio frequency amplifier TR1. The input of the audio amplifier is controlled by the gain pot R1, which selects the correct amount of voltage that is generated by the piezoelectric microphone, then connects this signal to the base of audio amplifier TR1 via C7. It may be found that there is insufficient housing space for a bulky piezoelectric microphone, so with a slight modification to the circuit, it is possible to employ an electret microphone insert as shown. Since the RF field that is generated by this transmitter is relatively large, the problem of RF feedback may very well be encountered. This may be overcome by placing the transmitter inside a metal enclosure, keeping all internal wiring as short as possible and the aerial wire.

Component listing for 1 watt transmitter

Resistors Semiconductors R1 = 27k TR1 = BC547 R2 = 330k TR2 = 2N2219 fitted with heatsink R3 = 5k6 MIC = piezoelectric microphone R4, 5 = 10k R6 = 100R

L = 6 turns 22 gauge enamelled wire wound on 3⁄16″ former

Capacitors

C1, 2, 3, 8 = 330 pF C4 = 2–10 pF trimmer C5 = 4p7 C6 = 1 nF

C7,C8 = 40uF/25V Electrolytic

Circuit diagram for Long range FM Transmitter

indianengineer indianengineer 

www.indianengineer.wordpress.com

www.indianengineer.wordpress.com

email Us at

Freshersblog@gmail.com

October 5, 2009 Posted by | project ideas, transmitter | , , , , , | 5 Comments