Raspberry PI - analog sensors with Arduino
Rabin Yasharzadehe
rabin at rabin.io
Tue Aug 2 18:40:05 IDT 2016
קח בחשבון שיש הבדל מהותי בין שימוש בצ'יפים נטו לבין מודולים מוכנים,
לרוב מודולים יעשו לך את העבודה הקשה של התממשקות עם ה-CHIP וגם קינפוג ברמת
החיווט!
כמו כן גם יחשפו לך את המידע על פרוטוקול סיריאלי פשוט כמו RS232, בלי שתצתרך
להמיר אותו.
אם אתה לוקח ADC למשל ומנסה להשתמש בו AS-IS אתה צריך לעבור על ה-DATASHEET
שלו כדי להבין כיצד להביא אותו למצב עבודה.
ולהבין כיצד לבצע איתו דגימות וכיצד לתרגם את התשובה שלו לערך עשרוני.
--
Rabin
On 31 July 2016 at 12:37, Shlomo Solomon <shlomo.solomon at gmail.com> wrote:
> Thanks to Kobi and Jason.
>
> In the meantime, I've done more research, and I see that there are
> several ADC (analog digital converter) chips available to help the PI
> use analog input.
> Since my main purpose is to learn to use and program the GPIO pins on
> the PI, I guess that would be a good solution - especially since my C++
> skills are REALLY rusty and I'm much more comfortable with Python.
>
> Again - thanks for your replies
>
>
> On Sun, 31 Jul 2016 09:25:31 +0300
> Kobi Zamir <kobi.zamir at gmail.com> wrote:
>
> > Hi, I also think like Json.
> >
> > For the first time you play with an arduino, use a board that has:
> >
> > 1. a usb connector for programming and i/o
> > 2. pre-soldered connectors
> > 3. use standard arduino connector arrangement (like in the arduino
> > uno)
> >
> > For example:
> >
> http://www.ebay.com/itm/UNO-R3-ATmega328P-Development-Board-for-Arduino-Compatible-Free-USB-Cable-/191617917471
> >
> >
> >
> > On Sun, Jul 31, 2016 at 9:03 AM, Jason Friedman
> > <write.to.jason at gmail.com> wrote:
> >
> > >
> > >
> > >> I have absolutely no knowledge about the Arduino, but I've seen
> > >> clones advertised on e-bay for less than $2 - link below.
> > >>
> > >> Can anyone tell me if this as actually a working solution and if
> > >> the low price is actually possible?
> > >>
> > >>
> > >>
> > >>
> http://www.ebay.com/itm/1PCS-Pro-Mini-atmega328-5V-16M-Replace-ATmega128-Arduino-Compatible-Nano-/152160908037?hash=item236d7f3305:g:MMcAAOSw2GlXLD~U
> > >>
> > >>
> > > Arduino is probably the easiest / cheapest way to access analog
> > > sensors. While quality of these do vary, I have had good experience
> > > with these very cheap units. Note that you need to program these
> > > devices via a USB cable and an FTDI programmer (you can also find
> > > one on ebay for a few dollars). I would recommend for someone new
> > > to Arduino that you get an Arduino uno / sparkfun redboard (or a
> > > chinese clone of one of these) - they have the programmer built
> > > into the board (so you just plug it via USB to your computer). They
> > > also have headers soldered onto the board already, so you can
> > > connect sensors, LEDs, etc without soldering, which is good for
> > > getting started.
> > >
> > > Jason
> > >
> > >
> > >
> > >> --
> > >> Shlomo Solomon
> > >> http://the-solomons.net
> > >> Sent by Claws Mail 3.11.1 - KDE 4.14.5 - LINUX Mageia 5
> > >>
> > >>
> > >> _______________________________________________
> > >> Linux-il mailing list
> > >> Linux-il at cs.huji.ac.il
> > >> http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
> > >>
> > >
> > >
> > >
> > > --
> > > Jason Friedman, PhD
> > > Senior Lecturer
> > > Department of Physical Therapy
> > > Tel Aviv University
> > > email: write.to.jason at gmail.com
> > > web: http://curiousjason.com
> > >
> > > _______________________________________________
> > > Linux-il mailing list
> > > Linux-il at cs.huji.ac.il
> > > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
> > >
> > >
>
>
>
> --
> Shlomo Solomon
> http://the-solomons.net
> Sent by Claws Mail 3.11.1 - KDE 4.14.5 - LINUX Mageia 5
>
>
> _______________________________________________
> Linux-il mailing list
> Linux-il at cs.huji.ac.il
> http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
>
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