Shop OBEX P1 Docs P2 Docs Learn Events
BS2 Alarm — Parallax Forums

BS2 Alarm

ArchiverArchiver Posts: 46,084
edited 2002-05-24 12:28 in General Discussion
I need help with a program. I have a bs2 set to alarm when a light
is out. I would like it to check twice in about two mins. and then
alarm. The electronis I can handle. I have a photo resistive cell
and a LM555 to check the light,and the stamp set to look at Frequency.

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2002-05-23 17:30
    What's the LM555?

    >From: "bill_s2" <bill_s2@y...>
    >Reply-To: basicstamps@yahoogroups.com
    >To: basicstamps@yahoogroups.com
    >Subject: [noparse][[/noparse]basicstamps] BS2 Alarm
    >Date: Wed, 22 May 2002 17:04:02 -0000
    >
    >I need help with a program. I have a bs2 set to alarm when a light
    >is out. I would like it to check twice in about two mins. and then
    >alarm. The electronis I can handle. I have a photo resistive cell
    >and a LM555 to check the light,and the stamp set to look at Frequency.
    >
    >
    >To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    >from the same email address that you subscribed. Text in the Subject and
    >Body of the message will be ignored.
    >
    >
    >Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >




    _________________________________________________________________
    Verzend en ontvang Hotmail via je mobieltje: http://mobile.msn.com
  • ArchiverArchiver Posts: 46,084
    edited 2002-05-24 12:28
    >What's the LM555?
    >
    >>From: "bill_s2" <bill_s2@y...>
    >>Reply-To: basicstamps@yahoogroups.com

    Only about the most versatile IC outside of a Stamp. It's a
    timer, a one-shot, a clock and more. Do a search and you
    should get about a million hits.

    Carl
Sign In or Register to comment.