[DeTomaso] Optical turn signal control
Jerry Knotts
knottsj at galstar.com
Sat Jan 26 20:05:19 EST 2013
Give it another 1000 years and it will be known for what it was really
worth. That's when they had realized that everyone knew to only install
alternating versions of windows. Only the ones ending in an odd number
worked at all.
jerry
On 1/26/2013 3:29 PM, michael at michaelshortt.com wrote:
>
> You both know that Windows ME was best!
>
> :-)
>
> Michael
>
> On Jan 26, 2013 4:24 PM, "Jerry Knotts" <knottsj at galstar.com
> <mailto:knottsj at galstar.com>> wrote:
>
>
> I thought XP was the cats meow. It was the first Windows that could
> emulate the 1984 Apple operating system and not have "the blue
> screen of
> death" occur periodically.
>
> Started in computers in 1965 on a RAMAC,
> jerry
>
> On 1/26/2013 2:53 PM, Charles McCall wrote:
> > That's awesome!
> >
> > I remember Windows 3.1... and 3.11... and how 95 would be so
> great....
> >
> > Charles McCall
> > Raising Pantera Awareness Across Europe
> > 1985 DeTomaso Pantera #9375
> > http://www.poca.com/index.php/gallery/?g2_itemId=2323
> >
> >
> > -----Original Message-----
> > From: detomaso-bounces at poca.com
> <mailto:detomaso-bounces at poca.com>
> [mailto:detomaso-bounces at poca.com
> <mailto:detomaso-bounces at poca.com>] On Behalf
> > Of gow2 at rc-tech.net <mailto:gow2 at rc-tech.net>
> > Sent: sábado, 26 de enero de 2013 21:41
> > To: David Fisher
> > Cc: POCA list
> > Subject: Re: [DeTomaso] Optical turn signal control
> >
> > Had a guy her servicing our Laser a couple weeks ago. I talked
> about doing
> > things in Windows 3.1. He gave me a blank stare. I said, "you
> know before
> > Windows95?"......."What's Windows95?".....
> >
> >
> >
> >
> >> It looks like you are having a lot of fun. I'll date myself,
> but I
> >> recall
> >> making a x y milling controller off a Z80 eval board. Pretty
> satisfying
> >> to get all the things to work together.
> >>
> >> Keep all the creativity coming... love to see it.
> >>
> >> David
> >>
> >>
> >>
> >> On Sat, Jan 26, 2013 at 8:13 AM, <gow2 at rc-tech.net
> <mailto:gow2 at rc-tech.net>> wrote:
> >>
> >>>> Cool stuff... do tell more...
> >>>>
> >>>> David
> >>>>
> >>>>
> >>>
> >>>
> >>> The control for the turn signal encoder is called the Arduino. The
> >>> Arduino
> >>> is what I call "a micro controller for dummies". These type of
> platforms
> >>> are becoming very popular. Arduino is one of the most popular
> platforms
> >>> with an enormous wealth of information.
> >>>
> >>> I call it a micro controller for dummies because yu don't have to
> >>> understand much about the micro controller. Configuring and
> programing
> >>> is
> >>> basic. If you have done ANY basic level introductory program
> you can
> >>> follow the examples which are plentiful through Google and
> books. It is
> >>> just about getting the syntax right.
> >>>
> >>> The Arduino has a compiler (free download). The Arduino plugs
> into a USB
> >>> on the computer. If you want to control say a servo, in a Micro
> >>> Controller
> >>> you may have to create a signal at a specific pulse width to
> operate the
> >>> servo. In the Arduino, you make a note in the beginning to add
> a servo,
> >>> name an item a servo then tell the item to move to a position.
> It's that
> >>> simple. The rest is how you nest your program to do what you want.
> >>>
> >>> There is an explosion of these sort of boards right now. I
> would say the
> >>> Arduino is one of the most popular for this sort of
> application. Radio
> >>> Shack is even carrying these now; along with the LCD I use,
> and intro
> >>> boook, etc.
> >>>
> >>> Someone directed me to a new board this week which...is not
> really what
> >>> I
> >>> need here, but is unbelievable. It is basically a computer
> which runs
> >>> linux in the same configuration with massive inputs and
> outputs. It is
> >>> called the Raspberry and is ....$35. !!!!!
> >>>
> >>> http://www.alliedelec.com/lp/120626raso/
> >>>
> >>> Back to the Arduino. I start with the "Uno" which is a prototyping
> >>> board:
> >>>
> >>> http://arduino.cc/en/Main/arduinoBoardUno
> >>>
> >>> It has 14 digital input/output pins and 6 analog input output
> pins. I
> >>> work
> >>> out the logistics with the prototyping board then move to a
> more solid
> >>> solution.
> >>>
> >>> I have circuit boards made for the NANO which is pretty much
> the same
> >>> thing except it is designed to be soldered on a board:
> >>>
> >>>
> >>> http://arduino.cc/en/Main/arduinoBoardNano
> >>>
> >>> The circuit boards I have made are designed to hook up the
> things I need
> >>> such as a voltage converter to take the voltage from 12v to 5,
> sockets
> >>> for thermocouple chips, encoder counters, pull up/down
> resisters, mods
> >>> etc. It is a flexible circuit in which I am on my 3rd rendition.
> >>>
> >>> The encoder itself is not hard but the timing can be tricky.
> The encoder
> >>> has 2 LED emitters/detectors. They are staggered 1/2 wave. The
> logic is
> >>> to
> >>> read the separate waves. If both are high and one goes low,
> you know
> >>> which
> >>> direction it is moving. Each move provides a count.
> >>>
> >>> The tricky spot is timing. If you are doing things in the
> program when
> >>> the
> >>> count comes across, you will miss it. A separate chip is used
> to take
> >>> care
> >>> of the logic. It is a very simple chip which works well for this
> >>> application. It tags the Arduino on 2 pins. One pin is an
> interrupt. It
> >>> gives direction and count +/- 1. The interrupt is the key
> because at
> >>> every
> >>> count it interrupts the program and updates the count so
> nothing is
> >>> missed. Works very well for this application.
> >>>
> >>> The arduino will also manage 8 servos on the heaterbox in a
> constant
> >>> loop.
> >>> If an input condition has changed it will turn on the servo,
> move it,
> >>> and
> >>> turn it off.
> >>>
> >>> There is a whole group of conditions going on in the turn signal
> >>> process.
> >>> It will control each of the 4 turn signals and flashers via a
> power
> >>> mosfet. It has a few things to consider; position of the
> wheel, are the
> >>> flashers and turn signals on at the same time, are the lights
> on (the
> >>> front marker is both marker and turn signal), manual cancel, etc.
> >>>
> >>> I can do creative things like make the front marker both a
> turn signal
> >>> and
> >>> a marker. If flashers and turn signals are on, I will flash
> 2x, turn
> >>> signal 2x, flash 2x, etc. If I leave the turn signal on for 5
> min, turn
> >>> them off. Things like that.
> >>>
> >>> he left is the prototype. The right is the actual column. You
> are seeing
> >>> the bottom of the column:
> >>>
> >>> http://www.rc-tech.net/cars2/panttransam/turn/turn3.jpg
> >>>
> >>> I have been working through the learning curve on the
> prototype. This
> >>> involves making a lot of mistakes, figuring out what I have
> done and
> >>> getting it right. A soldered board is so much better when done
> right the
> >>> first time. As I get parts nailed down, I hope to begin putting it
> >>> together in the car Sunday with some finish wiring. So much
> still to do.
> >>>
> >>> The mile stone for me was getting the encoder to read reliably
> without
> >>> error which I have done. That above all was the hardest part.
> The rest
> >>> is
> >>> just logistics.
> >>>
> >>>
> >>> Gary
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>> On Fri, Jan 11, 2013 at 2:51 PM, <gow2 at rc-tech.net
> <mailto:gow2 at rc-tech.net>> wrote:
> >>>>
> >>>>> Here are some parts being used to build the encoder based turn
> >>> signal:
> >>>>> http://www.rc-tech.net/cars2/panttransam/turn/turn.jpg
> >>>>>
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