Recent content by Anotherforummember

  1. Anotherforummember

    LED chaser/sequencer pattern generator

    Its been just over 100 sells of the LED Chaser units since 1 year of inception. But now my ebay store is closed in support of the world wide ebay boycott.  Onward to planned website migration.
  2. Anotherforummember

    LED chaser/sequencer pattern generator

    Serious buyers need only post/buy/reply.
  3. Anotherforummember

    Sound Recoder IC???

    You have not yet played around with ISD series of voice record/play intergrated circuits?  The series covers times from 10 seconds to minutes and all kinds of interfaces.  These things are ancient. http://www.winbond-usa.com/mambo/content/view/36/140/
  4. Anotherforummember

    Soft start on a 555 timer

    Inductors consume more current at low frequency that at high frequency.  This idea is better termed "hard turn-on"  Noise is what triggers SCRs.  monitor noise with o-scope.  Add ferrite beads here and there.  Use better swithces than voltage consumming mosfets, and use short wire lengths...
  5. Anotherforummember

    IR Remote Control

    Allow me to demonstrate the difficulty of making and interpreting commands without encoders/decoders.  Transmitter: 1. 555 Timer1 35KHZ carrier generator fed into input of an AND gate. 2. 4-bit Parallel to Serial shift register with command loaded on parallel inputs.  This functions as a...
  6. Anotherforummember

    Dual CMOS based timer problems...

    Difficult to see how the circuit is functioning.
  7. Anotherforummember

    LED sequencer-need help

    ...Are you helping with the addition of another off topic comment directed towards me ????
  8. Anotherforummember

    5 minute timer where a mechanical motion is required

    Yes, I thought of adding electrolytes to the water such as salt.  Fill a small cap with water and measure the resistance.  The range is 400k to 1.5M Ohms.  Add salt to this water.  Add a lot of salt.  The range is 20K to 30K Ohms.  This require 500v to pass only 20mA of current.  iceman302: By...
  9. Anotherforummember

    where to get cheap PIC's

    Where have you search, or better what do you consider cheap? Referencing 16F877A in 100 qty: Digikey ~ $5.40 - $6.00+ Microchip ~ $4.98 - $6.00+ Mouser ~ $4.68 - $6.00+ Futurlec ~ $5.30 + Most large selling distributors ~ $5.00 average.  If you want cheaper than the already 100 qty price break...
  10. Anotherforummember

    5 minute timer where a mechanical motion is required

    iceman302:
  11. Anotherforummember

    LED sequencer-need help

  12. Anotherforummember

    LED chaser/sequencer pattern generator

    You misjudged the potential.
  13. Anotherforummember

    555 timer for automobille indicator

    YES.  51% duty suffices if you so wish to not use extra diodes.  Either way no big deal.  Use a standard Astable circuit with a larger than normal capacitor and high resistor value.  F = 1.44/((R1 +2R2)C1).  R2 10x larger than R1 for 50.xxx% duty.
  14. Anotherforummember

    LED chaser/sequencer pattern generator

    I have LED chasers.
  15. Anotherforummember

    boost converter

    All is good now.  Scuba got my board, did a little toasting to it.  Board fixed and now in service.  Still in service Scuba? 
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