wb lcd display

[rr]

For the 12 -> 5v p/s, I would do something close to how
the WB UEGO circuit is powered. Just change the 78L08
out for a run-of-the-mill 7805 regulator chip. Maybe add
a 1N4001 diode in series with the input.

I'm going to try to look at the schematic. However I don't
know how much luck I'll have with the EPS file.

BobR.

On Sun, 09 Sep 2001 22:57:05 -0400
 Bill Shaw <bshaw at connix.com> wrote:
> While waiting for my DIY-WB I started thinking about a
> display for it.  I've just uploaded to incoming a file
> called WB_LCD.EPS which is schematic for a LCD display
> for
> the wb-02 meter.  It has a PIC16F877 controlling a 4
> digit
> LCD display.  The PIC is flash based and can be
> reprogramed
> in circuit, has 4 analog channels available,  a 64K bit
> serial eeprom for data logging,  and a serial port for
> talking to a PC or laptop.
> 
> I need help in a few areas:
> 
> 1)  I need someone(s) to review the schematics for
> technical
> correctness before it goes to layout.
> 
> 2)  I need a robust 12V to 5V power supply for it.
> 
> 3)  I need someone to do the PCB layout.
> 
> Yell if you can't print the EPS file and I'll see if I
> can
> get it to you in another format.
> 
> Regards,
> 
> Bill
> 
> P.S. - Many thanks to the original DIY-WB team for the
> great
> effort!
> 
> 
> 
> 
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