Hi Brian:

It is the number of writes, not the reads that I was concerned about.
You used the phrase "send a streaming update to it as the motor moves" in 
your initial email.
If you are continuously doing writes to the eMMC, then that is a long term 
concern.
If this is just a short term demonstrator, then no problem.
If this is a real product, then there are anecdotal reports of users 
killing the BeagleBone's eMMC after a few years of logging.

For a real good example, (of eMMC wearout, not a BeagleBone issue) read:
https://insideevs.com/news/376037/tesla-mcu-emmc-memory-issue/
https://www.businessinsider.com/older-teslas-reportedly-having-issues-charging-screen-not-working-memory-2019-10


If you need a small, almost unlimited write memory that remembers with the 
power off,
try something like an FRAM.

Example of a small development board:
https://www.adafruit.com/product/1897
Spec sheet says good for a trillion write cycles.

Beware buying a used Tesla. :-)
--- Graham

==

On Monday, November 18, 2019 at 8:23:55 AM UTC-6, [email protected] wrote:
>
> Something that can be stored and called upon at boot time to be used in a 
> main python function

-- 
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