[Dprglist] Rayo Pinky-Pie 7.0

[Rud Merriam]

Was about to suggest the same. Just did a project that started on a Uno 
but switchbacked to Due boards for the additional memory. Not sure if 
RAM or ROM ran out but both were at the limits for a UNO.


---
Rud Merriam K5RUD
Mystic Lake Software <http://mysticlakesoftware.com>

On 08/04/2018 09:03 AM, Doug Paradis via DPRGlist wrote:
> Eric,
>  I suggest that you consider having a Arduino Mega sent your way. It 
> takesmore physicalspace, but has many more GIO pins. Also, it has 6 
> external interrupt pins and I believe 3 PinChange interrupt ports, as 
> well as, pretty much more of everything else. I was wondering about 
> your pin assignments for your encoders. It looks like you plan to use 
> a tachometer type encoder and notquadrature encoders. The Mega would 
> allow you to use quadrature encoders. Everything that you have done on 
> the Uno can be transported to the Mega (you might need to change a pin 
> assignment or two). It would allow you more freedom to expand. Here is 
> a link to a reasonably priced Mega, 
> http://www.microcenter.com/product/486545/arduino-mega-2560 
> <http://www.microcenter.com/product/486545/arduino-mega-2560>.
>
> Regards,
> Doug P.
>
>
> On Sat, Aug 4, 2018 at 8:23 AM, Eric Yundt via DPRGlist 
> <dprglist at lists.dprg.org <mailto:dprglist at lists.dprg.org>> wrote:
>
>     DPRG,
>
>     I stunned and amazed at how easy working with the Arduino UNO is. 
>     The plethora of example code, libraries for this and that, and who
>     knows how many tutorials on Youtube and blogs is mind-boggling. 
>     When I finally sat down with my new UNO and a breadboard, in 2
>     minutes I was reading a switch state, 3 minutes later playing a
>     tune on a piezo speaker, 5 minutes later I had sonar results
>     streaming on my screen.  The young members of team Rayo Pinky-Pie
>     are thrilled that we'll be able to navigate and locate objects
>     like dolphins and bats. Thank you, Doug, for the tip about tying
>     TRIG and ECHO together -- that worked great!  Of course, now I
>     still need more pins because I'm thinking we could use a 2nd sonar
>     sensor!  jajaja.  Now we've got to work on H-bridge and wheel
>     encoders and our plan to take on the physical world.  Hmmm... we
>     need a gripper.  Yep.  And more, bigger batteries.  Is there no
>     end to this madness?!  ;-)
>
>     --
>     Eric
>
>     On Wed, Aug 1, 2018 at 9:31 AM, Eric Yundt <eric at facetcorp.com
>     <mailto:eric at facetcorp.com>> wrote:
>
>         My virtual world is now a spartan 32 KB Flash, 2 KB SRAM, and
>         a precious 1 KB EEPROM [an Arduino UNO.]
>
>
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