[Dprglist] Anyone using an Omega2 Pro?

David Anderson davida at smu.edu
Sat Sep 19 22:35:46 PDT 2020


Howdy

On 9/19/20 3:18 PM, Jim Merkle via DPRGlist wrote:
> Need to figure out what you plan to do with the board / why THIS board 
> is necessary.

Seems like most of the robots I see on the net that are using a RPI or 
similar to run a robot,  also use a separate board, STM32 or Arduino or 
similar controller, to do the real-time stuff and provide all the needed 
I/O pins, hardware timers and comparators and such.

So that's a reasonable place to put things like motor control and 
encoders and odometery, as well as drivers for various sensors and 
actuators.  The RPI/Linux board can then deal with things like cameras 
and WiFi.

That seems like a good separation of labor.  You don't have Linux on the 
robot controller board but you can have an RTOS to provide concurrency 
and timed delays and the like.   For which there are a number of good 
free options available.

I see the attraction of doing both of those functions, high and low, 
with the same hardware.  But seems like it might lock you in. Especially 
after having spent the many hours required to get the I/O and drivers to 
work.

cheers!

dpa










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