a question relating PIC16F877A

[maxster03]

hi there,

i just wanted to know, is it possible to connect a smoke detector remove its sound [buzzer] alarm, and give a input signal to PIC16F877A so tht an output could be showed to an LCD,

not sure so thought to ask the question,

thanks alot for replying to this thread,
really appreciate it

Max

 

[SMUGangsta]

if your talking about a standard household one, you probably want to work back a bit from the buzzer as its used for battery monitoring etc too (at least mines is - a single beep every 10 minutes or so) you should be able to find the signal on the board - DO NOT OPEN the metal enclosure if it has one - as the contents are radioactive and could do damage to you or your family if ingested!!

 

[maxster03]

i am thinkin of using this one

**broken link removed**

 

[maxster03]

anyway of connecting a smoke detector with a PIC ????

ANYONE

 

[blueroomelectronics]

Buy a smoke alarm with a relay output like the type used with monitored alarm systems like DCS