Page 4 of 4 FirstFirst ... 234
  1. #31
    Nice work on the furnace control, just for those still not disillusioned with LEDs have a look at http://www.onsemi.com/pub_link/Colla...I45020JZ-D.PDF http://www.onsemi.com/pub_link/Colla...SI45030A-D.PDF and there are versions of this with different current and voltages
    I'm still trying to work out how to use a illuminated led as a switch if any one has done this let me know

  2. #32
    Quote Originally Posted by Binary View Post
    I'm still trying to work out how to use a illuminated led as a switch if any one has done this let me know
    What ? do you mean with an LDR or something ?
    Spelling mistakes are not intentional, I only seem to see them some time after I've posted

  3. #33
    I think you might mean as a touch switch - I presume you could use a metal cased led on an insulating panel as the sensor on a touch switch circuit
    https://www.google.co.uk/search?q=to...55%3B761%3B504

    Pick one !
    Last edited by cropwell; 15-10-2014 at 05:20 PM.

  4. #34
    no, not a metal can version a basic 5mm LED .....my thoughts the LED stays on, capacitance on one of the LED pins is the switch so just touch the resin or get close and the switch action operates the led to turn off or any output can be turned off

  5. #35
    You won't get enough pick up from the LED lead to give you a reliable operation, if you ramp up the sensitivity you will get switching from any electrical noise, so again it won't be reliable.

  6. #36
    I don't want to mislead you this has been done, how its been done and what with I'm not sure
    I was going to use an Arduino which will easily give a output for a LED it can also be used as a sensor
    the method in combining both switch with LED would make or break it.
    this is for only a prototype, then code for 8052

Page 4 of 4 FirstFirst ... 234

Similar Threads

  1. RFQ: Daft Punk Build
    By FIREWIRE in forum Projects, Jobs & Requests
    Replies: 0
    Last Post: 19-04-2013, 02:34 AM
  2. I promise I will stop asking daft question soon. Ish.
    By D.C. in forum Gantry/Router Machines & Building
    Replies: 27
    Last Post: 15-10-2012, 11:37 PM
  3. A daft question about vibration damping
    By D.C. in forum Gantry/Router Machines & Building
    Replies: 11
    Last Post: 11-10-2012, 09:57 AM
  4. NEW MEMBER: Hi there, a new member from Mid-Wales with a couple of daft questions.
    By m0nk3hjam in forum New Member Introductions
    Replies: 6
    Last Post: 17-08-2010, 02:32 AM
  5. High speed spindle
    By leadinglights in forum Tool & Tooling Technology
    Replies: 0
    Last Post: 27-04-2010, 09:23 PM

Bookmarks

Posting Permissions

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