[SML] STM32 controller boards

[Jerry Durand]

Since eBay and other places are currently flooded with STM32 
evaluation/demo boards in the $2-$3 range I figured I'd look into them 
for quick projects where I'm not doing a dedicated PC board.

Well, aside from a small pain getting started programming them bare 
metal (their documentation could be better) I got a surprise...the 
STM32F0xx and STM32F1xx lines do NOT have comparators.  They have 12 bit 
AD converters and they have digital comparators on the output of the 
converter (what, you can't compare numbers in software?) but no voltage 
comparators.  Odd since that's so simple once you have the AD hardware.

Well *grump*. Have to hang a comparator chip off the board, means a trip 
into the "junk box".

Wish I could still get the Zero boards with NXP processors, they were 
nice and low cost.

-- 
Jerry Durand, Durand Interstellar, Inc.
www.interstellar.com
tel: +1 408 356-3886
@DurandInterstel

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