[time-nuts] Updated Shera controller

Stanley Reynolds stanley_reynolds at yahoo.com
Wed Jul 28 18:06:11 EDT 2010

Full circle back to the software, the number of units sold, the cost per hour 
and time to complete project would determine the software cost. Would not 
surprise me if the software would be the biggest expense till you break the 1000 
unit mark unless the cost per hour was very low. As a hardware guy at heart it 
is hard for me to assign a cost/value to software ;-)


----- Original Message ----
From: "EWKehren at aol.com" <EWKehren at aol.com>
To: time-nuts at febo.com
Sent: Wed, July 28, 2010 4:08:25 PM
Subject: Re: [time-nuts] Updated Shera controller

One more comment $ 40 would cover every thing including PC board, May go up 
to 50 depending what D/A you use.  Bert

In a message dated 7/28/2010 4:47:46 P.M. Eastern Daylight Time,  
phk at phk.freebsd.dk writes:

In  message <4C5092FA.2030602 at xtra.co.nz>, Bruce Griffiths  writes:

>Instead of copying the Shera controller albeit with higher  resolution 
>its probably more cost effective to choose a microprocessor  with built 
>in time stamping capability.

Uhm, isn't this exactly  where you want to use the
still-smelling-like-brand-new-car PICTIC II with  a good DAC and
a microcontroller ?

Poul-Henning Kamp  | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG  | TCP/IP since RFC 956
FreeBSD committer  | BSD since 4.3-tahoe    
Never attribute to  malice what can adequately be explained by  

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