555 and a flip flop!

Close to 2p as I could get!

Steve

-----Original Message-----
From: pic microcontroller discussion list =
[mailto:PICLIST@MITVMA.MIT.EDU] On
Behalf Of Tal
Sent: 02 June 2003 00:35
To: PICLIST@MITVMA.MIT.EDU
Subject: [EE]: Need idea for elapsed time


Hi All

I need an idea for a circuit to check if a fixed time period (>2 sec) as
passed. the circuit I am checking is a 12vdc pump if it working more =
than 2
sec then I need a high or low signal to start a buzzer.. can you think =
about
a cheap and easy solution?

Regards

Tal

"I have not failed. I've just found 10,000 ways that won't work." Thomas
Edison

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