[EMS Discuss] radio between arduinos?

Ellery Weber ellery at elleryweber.com
Thu Mar 27 16:58:41 PDT 2014


Great info, Greg! Not my project, but I'm sure it's helpful to Joshua in
his :)

The xbee was the only thing that came to mind, so I brought it up.

Hopefully Joshua can use some of those cheaper solutions.



--EW



--- Ellery Weber


On Thu, Mar 27, 2014 at 4:54 PM, Greg Norman <normgr00 at yahoo.com> wrote:

> Ellery,
>
> Some less expensive options are here. Of course transmitters only transmit
> and receivers only receive, a cheaper solution if data only goes one
> direction. Those marked transceiver transmit and receive data on both ends.
> The least expensive usually have lower power (shorter ranges) and the size
> of antenna has a huge effect on range. You pay for distance. The basic
> trancievers are less expensive and easier to intigrate for your program
> than the xBee. The Arduino Cookbook has a chapter on these things.
>
> https://www.sparkfun.com/categories/79
>
> About the xBee, they can be purchased with a variety of output power and
> antenna styles. The thing about xBees is they can operate in a variety of
> modes so are more versatile but with versatility comes more complexity so
> require more learning to configure and program. The xBee also needs a
> module you plug into to configure it.
>
> If you want to try xBee I have a set including a programing module and
> cable you can borrow to see if it works for your project. I will also loan
> you books and help you set up the configuration program. All I ask is that
> you replace whatever you brake. I may or may not be able to be at EMS on
> Friday but if i'm not we can make arrangements.
>
> Greg Norman
>
>   ------------------------------
>  *From:* Ellery Weber <ellery at elleryweber.com>
> *To:* Elizabeth Phelps <lizphelps18 at aol.com>
> *Cc:* discuss <discuss at eugenemakerspace.com>  want
> *Sent:* Thursday, March 27, 2014 3:26 PM
>
> *Subject:* Re: [EMS Discuss] radio between arduinos?
>
> Adafruit has them for around 20$ each - not sure what your price range
> is...
>
> http://www.adafruit.com/products/128
>
> This one automatically creates a serial link when 2 are within range of
> each other.
>
> might want to think about getting the adapter kit as well (
> http://www.adafruit.com/products/126), since the pins have a 2mm spacing
> instead of a .1" (like breadboards take)
>
>
>
> --- Ellery Weber
>
>
> On Thu, Mar 27, 2014 at 3:20 PM, Elizabeth Phelps <lizphelps18 at aol.com>wrote:
>
> Thank you. I looked at the xbee site below, and I don't know which one
> would be best. I don't need a long range, but I don't know which is easiest
> to use. Do you happen to know which one would be good?
>          Thanks,
>             Joshua
>
>
>
>  -----Original Message-----
> From: Ellery Weber <ellery at elleryweber.com>
> To: Bob Miller <kbob at jogger-egg.com>
> Cc: Elizabeth Phelps <lizphelps18 at aol.com>; discuss <
> discuss at eugenemakerspace.com>
> Sent: Thu, Mar 27, 2014 10:01 am
> Subject: Re: [EMS Discuss] radio between arduinos?
>
>  Check out the xbee:
>
>  https://www.sparkfun.com/pages/xbee_guide
>
>
>  EW
>
>
>
> --- Ellery Weber
>
>
> On Thu, Mar 27, 2014 at 9:58 AM, Bob Miller <kbob at jogger-egg.com> wrote:
>
> The easiest way to do that would be to connect a serial Bluetooth card
> to your Arduinos.  Several members have experience with those, but I
> do not.
>
>
>
> On Thu, Mar 27, 2014 at 9:23 AM, Elizabeth Phelps <lizphelps18 at aol.com>
> wrote:
> > Hi
> >                 I am trying to get two arduinos (Uno and Micro) to send a
> > string of numbers/text back and forth to each other with radio. I would
> then
> > like to divide the incoming string into separate variables. I don't need
> the
> > range to be longer then about 50', and I don't need it to be very fast. I
> > would like to use serial, because I know how to use it some, and it
> doesn't
> > use many pins. Also, the simpler the better. Does anybody have some
> ideas?
> >                 Thank you,
> >                 Joshua
> >
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>
>
> --
> Bob Miller                              K<bob>
>                                         kbob at jogger-egg.com
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