[Dprglist] Need suggestion for expansion boards for STM32 to build a robot

[Chris N]

Kumar,
In principle that Arduino shield should work for you, provided there are no
issues with voltage levels.  The STM32 is 5V-tolerant, so probably nothing
to worry about on that end.  Maybe more of a question if the Shield gets
the voltage it needs.  It probably will, because the arduino headers have a
pin reserved for 5V.   It's just one of those things worth double checking,
though, before you start banging your head against the wall....
Maybe more worth noting is the fact that the shield uses the L293 motor
driver   (not the 298).  The L293 is not exactly very powerful.   1.2A max.

P.S.:  what happened to your plans with Pi + Ubuntu + ROS ?  Is the STM32
an addition to that setup, or instead of that Pi-based setup?

Chris.

On Thu, Oct 21, 2021 at 3:19 PM Thalanayar Muthukumar <tnkumar at gmail.com>
wrote:

> Thanks Chris.
> I have this Arduino shield (
> https://www.amazon.com/gp/product/B01LX9TLP5/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1)
> which can possibly be used with the NUCLEO - I may need to confirm that the
> voltage levels match. Beyond that, in the initial phase, I have my
> I2C(StemmaQT) BN055 and StemmaQT OLED display that I may want to use.
>
> In later stages, after I get my initial STM32 robot moving, may consider
> other sensors.
>
> Regards.
> - Kumar
>
> On Thu, Oct 21, 2021 at 7:16 AM Christian M Netter <netterchris at gmail.com>
> wrote:
>
>> Do you have a rough idea of what type of sensors And actuators and how
>> many of each you will be connecting?
>>
>> That will tell you what type of I/O and how much of each you will need
>>
>> What is lacking from the nucleo board that you purchased?
>>
>> Most STM 32 boards probably have enough I/O for a basic robot so you
>> might not actually need an expansion.
>>
>> The only thing you might need is a motor driver.
>>
>> Chris
>>
>> On Oct 21, 2021, at 12:05 AM, Thalanayar Muthukumar via DPRGlist <
>> dprglist at lists.dprg.org> wrote:
>>
>> 
>> So far, in the past few months, I have been building Arduino or RPi based
>> robots.
>> I decided next, to use the STM32 and ordered a NUCLEO STM32L476RG Kit.
>>
>> Need suggestions for expansion boards that can help me build a robot.
>> I see many Arduino shields and Pi Hats, but could not locate the right
>> expansion board.
>>
>> Or instead of the NUCLEO kit, should I be looking at other STM32 boards?
>> I do not want to build a custom board.
>>
>> Regards.
>> - Kumar
>>
>>
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