Making A Firealarm (Alevel!)

Ok im making a firealarm for my Alevel project and need some recomendations on what Chip On Board to use

Basically i need links to anything that can help me on the whole firealarm subject

Im located in the UK

Thanx
Liam

Do you need to use a Microcontroller or just sensors ?

You can make a "Heat detector" using the LM35 - Temperature Sensors.
I dont know anything about smoke detectors though but you can get a real smoke detector , open it and see how its working...

Ok i didnt explain what im doing (tired )


(this is what ive been TOLD! to do)

There is a bulb , next to this an LDR when the smoke dimmers the light this will trigger an alarm (which needs to be turned off)

Ive been told to use a COB and an IDA2002 to make the alarm sound

But they didnt say what sort of COB , and the IDA2002 is just an amplifier im pretty sure that you can get COBs which do the lot

What is a COB? All you need is a comparator and something to drive the alarm, if the comparator is not able to drive it direct. I suggest you post your circuit here and ask for comments.