ComputerVoltageSources group photo

Yahoo Groups archive

ComputerVoltageSources

Index last updated: 2026-04-28 22:42 UTC

Message

RE: [ComputerVoltageSources] Re: LCD Support PCB Rev. X00 and Programmed Chip available

2007-04-30 by John Loffink

There's a Lumex part that works, but you'll have to swap the power and
ground leads for the LCD.  Let me check around first for direct replacements
before I post part numbers.

John Loffink
The Microtonal Synthesis Web Site
http://www.microtonal-synthesis.com
The Wavemakers Synthesizer Web Site
http://www.wavemakers-synth.com


> -----Original Message-----
> From: ComputerVoltageSources@yahoogroups.com
> [mailto:ComputerVoltageSources@yahoogroups.com] On Behalf Of
> thealisonproject
> Sent: Monday, April 30, 2007 12:26 AM
> To: ComputerVoltageSources@yahoogroups.com
> Subject: [ComputerVoltageSources] Re: LCD Support PCB Rev. X00 and
> Programmed Chip available
> 
> Hello all
> 
> Does anyone know an alternate for the Seiko 16x2 LCD as it is no
> longer listed from Mouser.
> 
> Thanks
> Chris
> 
> 
> 
> --- In ComputerVoltageSources@yahoogroups.com, "John Loffink"
> <jloffink@...> wrote:
> >
> > I have a limited number of LCD Support PC Boards Rev. X00 and programmed
> > Atmel ATTINY2313 chips with code by David Brown available.  Some
> photos and
> > an Excel spreadsheet bill of materials are posted in the Yahoo
> groups photo
> > and file sections.  Dave has some videos at his web site.  After
> these are
> > gone I do not plan on making any more.
> >
> > MAKE SURE YOU RELOAD THE PARTS LIST FROM THE WEB SITE.  THE PART NUMBER
> > FOR THE LCD HAS CHANGED.  We found a Seiko LCD from Mouser that exactly
> > matches the stacking footprint of this PCB.  Don't use the apparently
> > identical Lumex 16x2 LCD as it reverses power and ground connections
> and
> > WILL fry your LCD.
> >
> > The LCD Support PCB adds support for a 16x2 LCD display for the PSIM
> or CVS.
> >
> > Characters are written by sending MIDI data to the device.  It also
> has a
> > MIDI in/out subcircuit for adding MIDI to a PSIM.  Finally, it can be
> > configured to operate as a standalone MIDI monitor.  PCB by John
> Loffink,
> > AVR code by Dave Brown.  The LCD and LCD support PCB mount directly
> > to a front panel using 2/56" standoffs and screws.
> >
> > The board can run off +15 V or + 5 V power.  Using +15 V requires a
> heatsink
> > for the 7805 5 V regulator, as shown.  It has a 4/6 pin MOTM/Blacet
> > compatible power connector.
> >
> > Cost is $15 for the PC board Rev. X00, programmed Atmel ATTINY2313,
> > four ΒΌ inch #2/56 screws for mounting the LCD inconspicuously to a black
> > faceplate, and four #2 washers.  Shipping is extra for orders
> outside of the
> > US and Canada.  Additional parts for these boards from Mouser cost
> about $42
> >
> > for the LCD function including LCD and $3 for the MIDI function using
> > inexpensive MIDI connectors.
> >
> > Email me for payment details.
> >
> > John Loffink
> > The Microtonal Synthesis Web Site
> > http://www.microtonal-synthesis.com
> > The Wavemakers Synthesizer Web Site
> > http://www.wavemakers-synth.com
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
>

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.