tsenecal Mon Oct 10, 2016 4:41 am
salmon wrote:Can't a Raspberry Pie do the same things Arduino can do?
A raspberry pi is much more than an arduino...
arduino has the horse power of an old 1990's era Palm Pilot (16mhz 32 bit cpu, 32kb of shared ram/storage), and has zero capacity off the shelf for anything besides general hack type things (read an input, process data, set an output) it has a boot-loader, but no OS. it can be expanded to drive simple LCD displays, read SD cards, emulate a keyboard or mouse, but that's about it.
raspberry pi is as powerful as an early 2000s Desktop PC (900mhz quad core 32bit cpu, 1gb ram, 8gb+ storage), and can connect to a standard HDMI LCD display, keyboard and mouse, has ethernet, USB, microSD slot, and is fully capable of running a complete Linux installation. It also happens to have several general i/o pins, like an arduino.
a raspberry pi would be a good start for a main CPU running an autonomous submarine, controlling as many arduinos as needed to work the parts.
the raspberry pi retails for $35-$50, with some competitors as low as $20...
the arduino (real true arduino) retails for $20-$35, with clones as low as $2.00
last, but not least....
you can install the complete arduino development environment (including libraries) on a raspberry pi...
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