I'm raj ramos a computer engineering student. I just want to ask the details of the project MICROCONTROLLER AVR ATMEGA-8535 BASED SMOKE DETECTOR FOR POLLUTION CHECKING. Can you please send me the circuit diagram. It is regarding our project proposal. Thank you! ....etc

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please send c language code and circuit diagram for smoke detector using at89s52 ....etc

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This project is designed to monitor the LPG leakage or smoke and activate the siren and auto dialer using ARM based microcontroller. LPG Sensor is used to sense the leakage. A buzzer is provided to alert the user in abnormal condition.
The LPC2148 are based on a 16/32 bit ARM7TDMI-S CPU with real-time emulation and embedded trace support, together with 128/512 kilobytes (kB) of embedded high speed flash memory. A 128-bit wide memory interface and a unique accelerator architecture enable 32-bit code execution at maximum cl ....etc

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To get information about smoke detector refer the page link below

http://seminarsprojects.net/Thread-smoke-detector-using-8051-code?pid=181207#pid181207 ....etc

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I need a three in one security circuit,that will be able to detect fire, smoke and burglary using a micro-controller. this circuit should be able to use a 9V battery. the program should be in C and should be made available ....etc

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smoke detector using at89s52 microcontroller ppt download

The project over all consist of the following components:
1. Microcontroller ATMEL 89S52.
2. Temperature sensor LM-35.
3. Smoke sensor TGS-308.
4. 16x2 LCD.
5. Operational amplifier IC LM-324.
6. 12 Volts Buzzer.
7. 6 Volts Relay.
8. Potentiometers 10K.
9. 5 Volts Voltage regulator 7805.
10. BJT C-1383 NPN-type
11. Crystal oscillator 11.0592 Mhz.
12. LED s.
13. Push button.
14. Capacitors.
15. DB-25 Connector.
16. ISP Programmer.
17. KEIL UVision-2.
18. 9 Volts Adapter.
19 ....etc

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Optical Smoke Detector
Optical Smoke Detector contain a small photoelectric cell which triggers the alarm when the beam is disturbed by smoke. it shows better results in smoldering mattress.
read this material where its bravely explained, i hope its greatly usefull

http://home.howstuffworkshome-improvement/household-safety/fire/smoke1.htm
http://72.29.25.62/page.asp?ID=63
http://en.wikipediawiki/Smoke_detector

if you not satisfies with it please reply below
we may try to solve (needs whats facing problem) ....etc

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Description:
SMS based Fire detection system using Smoke and Temperature sensor has application in many areas like Industries, Companies, Offices, Shopping malls and even at our home. This project has a Smoke sensor and a Temperature sensor to detect the fire. Fire detection system sends SMS to user when any one these sensor crosses threshold value. We have provided a Buzzer which turns on when SMS is sent to user.

Description in detail:
Various important blocks of system are:
1) Smoke sensor
2) Temperature sensor
3) Analog to digital c ....etc

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please send c language code and circuit diagram for smoke detector using at89s52 ....etc

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This home smoke detector circuit warns the user against fire.
It is based on the smoke that is produced in the event of a fire and runs between the bulb and the range of light, the amount of light falling on the LDR is reduced. This type of circuit is called an optical smoke detector. Do not use it as a home smoke detector is the law for electronic projects.

This causes resistance to LDR to enlarge and voltage on the base of the transistor is pulled high the power directly to the COB (chip-on-board) has been completed. the sensitivity of the s ....etc

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