circuit diagram and code for smoke detector using at89s52

[preethi]

please send me circuit diagram and code for smoke detector using at89s52

[SHAH DISHANT H.]

Hi,

 

Well this one is very easy. We recommand to start on your own instead of ready code. For this application you need following hardware and software.

 

1. 8051 developemnt board (you can design your own also)

2. Smoke detector (easily available in market)

3. Buzzer

 

Keil & Flashmagic Software

 

Algorithm for this application is mentioned here

 

Connect Smoke detector output on any controller pin and buzzer on another pin

Monitor that pin continuosly untill you receive signal on that.

Give signal on buzzer

 

That’s it…

 

Start it and if you have any queries, write me back….

[Rupa]

I want my lcd display to show level of smoke. How can i do this. 

[Ashutosh Bhatt]

u can use LDR for this purpose. because as smoke increases the light falling on LDR decreases and its resistance increases. so you bias LDR with fixed value resistor and take output across LDR. the output voltage across LDR changes. that can be interpreted as smoke level

[Shraddha Jirapure]

Plz we need code for the pressure sensor interfacing with ATc52

[Ashutosh Bhatt]

which is your pressure sensor?

[Bhavya]

Please send me circuit diagram of smoke detector using 8051

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