[time-nuts] FE-5680A Mechanical Question

Chris Albertson albertson.chris at gmail.com
Sun Jan 15 00:57:25 EST 2012

On Sat, Jan 14, 2012 at 1:56 AM, Don Latham <djl at montana.com> wrote:
> And again, if a picaxe is used, the programming connection can be
> built-in. It takes two resistors and can use a 3-pin .1 in connector.
> The program can be easily read in and modified at will, no special
> programmers are required, just a serial port. Users can buy the picaxes
> from several vendors, so no preprogrammed chips have to be sent around.
> The latest programs could be stored by the usual suspects :-). SanDisk
> pinout boards are cheap from Sparkfun, so big data set storage is a
> snap.
>  OTH, Chris Albertson has just tipped us off to a very rich cost
> effective environment, an Arduino and Labview. Got one on order, can't
> resist. The picaxes may have to stay in the drawer for this app. . .
> Don

A PICAXE is a PIC with a boot loader preprogrammed into it.   Arduino
is an AVR with a boot loader preprogrammed into it.   I like the AVR
because it uses the very same GCC C/C++ compiler I use for everything
else.   I can test _some_ things on the desktop computer then
recompile on the AVR.    The Arduino is simply an AVR, on a
standardized PCB.  The decision to standardize means that you can buy
standard daughter cards.  You can build exotic stuff like web
controlled stepper motor drivers with no soldering.

I was very surprised to find the Labview bundle.  It is normally a
$5,000 package.   But then I looked and found the Student version of
Labview is always $20.  And they don't ask if you are a student.
(Actually however I am, at age 50+ I enrolled in the local community
collage, music department.)

I'm never afraid of "overkill" on a one up project.   The last big
embedded hobby system I worked on has an astronomical camera.  One
thing you have to do with a CCD image sensor is clock the charge off
the chip then route it to an ADC.  I used a full size desktop PC
running Real Time Linux to generate the clocks or the CCD.  Gross
overkill but I could telnet into the camera controller and look around
inside even with the camera on the other coast 2,000 miles away.

Chris Albertson
Redondo Beach, California

More information about the time-nuts mailing list