[sdiy] Four bit to serial translator Sorry Oops Again

[Scott Gravenhorst]

music.maker at gte.net wrote:
>Oops, one too many resistors.  Here's the revised idea:

One more time:


                  to other bits
                       |
         From          |
        Other ->|-+--R-+
         Bit      |    |
                  R    |
                  |    |
                 gnd   |
                       |       |\        +-->|--Vdd (CMOS)
            +-->|--+-R-+-------|+\       |
            |      |           |  >-+----+----o Pulse Out
            |      R        +--|-/  |
            |      |        |  |/   |
            |     gnd       |       |
            |           +---+--R----+
            |           |
            |           |
            |           |
BIT ----||--+--|<--+-R--+
                   |    |
                   R    |
                   |    |
                  gnd   |
                        |
                        |
         From -|<-+-R---+
        Other     |     |
         Bit      R     |
                  |     |
                 gnd   to other bits


=========================================================  
- Where merit is not rewarded, excellence fades.
- Hydrogen is pointless without solar.
- What good are laws that only lawyers understand?
- The media's credibility should always be questioned.
- Governments do nothing well, save collect taxes.

-- Scott Gravenhorst | LegoManiac / Lego Trains / RIS 1.5
-- Linux Rex         | RedWebMail by RedStarWare
-- FatMan: home1.gte.net/res0658s/FatMan/
-- NonFatMan: home1.gte.net/res0658s/electronics/
-- Master of Arcane and Hidden Knowledge.