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3074Re: [cosmacelf] Re: Pico/Elf

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  • Bill Rowe
    Feb 1 7:49 AM
    • 0 Attachment
      what about something that would draw power from and communicate thru a PC's
      usb port? Sort of an 1802 coprocessor.
      ----- Original Message -----
      From: "rileym65" <no_reply@yahoogroups.com>
      To: <cosmacelf@yahoogroups.com>
      Sent: Tuesday, February 01, 2005 9:59 AM
      Subject: [cosmacelf] Re: Pico/Elf


      >
      >
      > Hello Steve,
      > The main issue would be the serial port, the board design uses a
      > simple transister circuit for the serial port and therefore needs +12v
      > and -12v. Although it would not be too difficult to leave the
      > transisters and resisters off the board and wire a small board with a
      > max232 and connect it to the right holes, then you are down to a
      > single voltage. If all cmos components were used, i would think the
      > power consumption would be low enough for battery operation...there
      > are no really power hungry devices on the board, the cpu and the ram
      > chip are probably what use the most...
      > Mike
      >
      > --- In cosmacelf@yahoogroups.com, "Gemeny, Steve" <steve.gemeny@j...>
      > wrote:
      > > Mike,
      > >
      > > What are the prospects of battery power for the PICOelf?
      > >
      > > Steve
      > >
      > > -----Original Message-----
      > > From: rileym65 [mailto:no_reply@yahoogroups.com]
      > > Sent: Monday, January 31, 2005 6:02 PM
      > > To: cosmacelf@yahoogroups.com
      > > Subject: [cosmacelf] Re: Pico/Elf
      > >
      > >
      > >
      > > Prices will be about:
      > >
      > > Bare Board: $30
      > > BIOS/ElfOS Rom: $5
      > > Full Kit(includes board, BIOS, CPU, and other parts): $75
      > >
      > > Plus you will need a power supply than can provide +5, +12, and -12v
      > >
      > > Mike
      > >
      > > --- In cosmacelf@yahoogroups.com, "craigsherenow" <craigsherenow@y...>
      > > wrote:
      > > >
      > > > --- In cosmacelf@yahoogroups.com, "ksr33" <ksr@k...> wrote:
      > > > >
      > > > > I am also interested in a complete Pico/Elf kit what would that
      > > > run on price ?
      > >
      > >
      > >
      > >
      > >
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