[Chugalug] Pi or 'Duino?

Eric Wolf ebwolf at gmail.com
Tue Aug 13 01:05:02 UTC 2013

I was wondering about the I/O ease with the Pi. It sounds like the Arduino
is much easier. The big thing I need is to drive a stepper motor on the
treat hopper. Secondarily, I'll want to trigger some kind of bell (ala
Pavlov's Dog). I'd really like an HTTP interface I can initiate the treat
sequence. I can do all the monitoring elsewhere (front door activity,
neighbor dogs in their yards, etc).

How hard is it to get a wifi interface on the Arduino?

I think I just answered my question... right now a Wifi shield, alone,
costs about the same as a Raspberry Pi. But there's a wifi Arduino project
that costs $39 that's still in pre-order:


So where is the pain the greatest: connecting a servo to the Raspberry or
connecting wifi to the Arduino?


Eric B. Wolf                           720-334-7734

On Mon, Aug 12, 2013 at 6:08 PM, Dan Lyke <danlyke at flutterby.com> wrote:

> On Mon, Aug 12, 2013 at 3:36 PM, Eric Wolf <ebwolf at gmail.com> wrote:
> > Raspberry Pi or an Arduino for the controller. The advantage of the Pi is
> > easy of programming (Python FTW). The disadvantage is largely cost.
> Arduino C++ isn't that hard. And the ease of interfacing to the
> Arduino (milliamps vs microamps) makes the Arduino my first choice.
> I just got a Gertboard to make Pi interfacing easier, but basically
> everyone who's doing serious Pi stuff just hangs an AVR device,
> usually as an Arduino, off of it to get I/O into the range where
> you're not stepping on eggshells and hoping you don't overdrive the
> Pi's GPIO.
> Dan
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