Page 3 of 3 FirstFirst 123
Results 21 to 22 of 22

Thread: Garage Door Open/Close sensor

  1. #21
    Fusion Brain Creator 2k1Toaster's Avatar
    Join Date
    Mar 2006
    Colorado, but Canadian!
    Quote Originally Posted by OldSpark View Post
    Enforcer!!! How do you get her out of bed? Let me know!
    Or should her partner get out and open instead?

    Funny that some of the replies in here remind me of solar trackers "that aren't worth the energy" - LOL - they use CPUs!!

    So many ways to sense - whether IR beam, induction/proximity, noise, etc.
    But the the 2nd part - security - eg, RFID, optic or RF or inductive codes etc. (That part can be turned on by the basic sensor with a timeout to save power.)
    Off topic, but you can build a solar tracker out of two small panels and a dc motor per axis.
    Fusion Brain Version 6 Released!
    1.9in x 2.9in -- 47mm x 73mm
    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the Store

  2. #22
    Raw Wave
    Join Date
    Nov 2009
    I was commenting on an oft heard comment that trackers aren't worth it - they "expend more energy than they save"...!!

    I did a rough calc and reckoned about a 10 or 20:1 payback (energy-wise) based on an adjustment at a max of 3 degrees (which corresponds to about a 5% drop in output).
    So I couldn't understand the naysayers.

    Then I spoke to a few, and they all started "(Well you stoopid idiot...) the CPUs....".
    And they reckoned I was stupid?
    (Then I explained why digital computers are so inferior to analog.... LOL!)

    BTW - the connection to this thread was the talk of in-house batteries, CPUs etc....

Page 3 of 3 FirstFirst 123

Similar Threads

  1. Custom USB Parking Sensor interface (formally PDC-USB)
    By Robby BMW in forum Hardware Development
    Replies: 444
    Last Post: 01-15-2015, 12:51 AM
  2. New OBDII scantool - Beta testers?
    By tmort in forum Engine Management, OBD-II, Engine Diagnostics, etc.
    Replies: 178
    Last Post: 11-16-2012, 02:35 PM
  3. Infrared Sensor For Garage Door
    By bratnetwork in forum Fusion Brain
    Replies: 3
    Last Post: 12-05-2008, 10:50 AM
  4. Mass Air Flow Sensor
    By h3rk in forum FB Sensors
    Replies: 5
    Last Post: 12-16-2007, 04:15 PM
  5. Relocating Portable DVD Remote Sensor...
    By AEFL92 in forum General Hardware Discussion
    Replies: 1
    Last Post: 09-10-2007, 04:03 PM


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts