small form factor STMF407 board

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OutoftheBOTS_
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small form factor STMF407 board

Post by OutoftheBOTS_ » Tue Jan 08, 2019 8:51 pm

I have found this board https://www.aliexpress.com/item/IRS2092 ... 07693.html

It is a very small form factor STMF407VET6 with all the pins broken out and a sd card adapter with a high precision 25MHz crystal.

I do believe there is aldready a potrt of Micro-Python for the STM32F407.

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mcauser
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Re: small form factor STMF407 board

Post by mcauser » Thu Jan 10, 2019 9:50 am

It’s very compact and one of the first I’ve seen with USB-C :)

Only minor differences between the pyboard and VET6 defs. See:
https://github.com/mcauser/VCC_GND_F407
https://github.com/mcauser/BLACK_F407VE
The ZET6 is also similar:
https://github.com/mcauser/BLACK_F407ZE
And the ZGT6 too:
https://github.com/SpotlightKid/BLACK_F407ZG

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mcauser
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Re: small form factor STMF407 board

Post by mcauser » Thu Jan 10, 2019 10:13 am

Same seller has a STM32F429BIT6 board for ~$45.

OutoftheBOTS_
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Re: small form factor STMF407 board

Post by OutoftheBOTS_ » Thu Jan 10, 2019 8:33 pm

mcauser wrote:
Thu Jan 10, 2019 9:50 am
It’s very compact and one of the first I’ve seen with USB-C :)

Only minor differences between the pyboard and VET6 defs. See:
https://github.com/mcauser/VCC_GND_F407
https://github.com/mcauser/BLACK_F407VE
The ZET6 is also similar:
https://github.com/mcauser/BLACK_F407ZE
And the ZGT6 too:
https://github.com/SpotlightKid/BLACK_F407ZG
I have a couple of those boards but have found they r nice for prototyping but are very large to fit into my robotics projects. What I like about the 1 that I post at the top of this link is it has all the pins broken out of a F407VET (LQFP 100 package) in the smallest form factor.

I assume this firmware will work https://github.com/mcauser/VCC_GND_F407

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Re: small form factor STMF407 board

Post by OutoftheBOTS_ » Thu Jan 10, 2019 8:45 pm

mcauser wrote:
Thu Jan 10, 2019 10:13 am
Same seller has a STM32F429BIT6 board for ~$45.
This board looks like it is setup for doing high speed graphics. It has a 40p connector for RGB screen and 16Mb of SDRAM all running on parallel connections. It also has 8Mb of SPI flash.

I have never seen any of these features implemented in Micro-Python.

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mcauser
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Re: small form factor STMF407 board

Post by mcauser » Fri Jan 11, 2019 3:05 am

Not yet, at least...

If you're after tiny boards for your robots, would one of those BetaFlight STM32F405 based flight controller boards be suitable?
They don't seem to break out many pins, but are very light and compact and often have useful components like EEPROMs and gyros/accelerometers.

What ever happened to that micropython multi-rotor Damien was going to build?

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Re: small form factor STMF407 board

Post by OutoftheBOTS_ » Fri Jan 11, 2019 7:14 am

mcauser wrote:
Fri Jan 11, 2019 3:05 am
Not yet, at least...

If you're after tiny boards for your robots, would one of those BetaFlight STM32F405 based flight controller boards be suitable?
They don't seem to break out many pins, but are very light and compact and often have useful components like EEPROMs and gyros/accelerometers.

What ever happened to that micropython multi-rotor Damien was going to build?
They don't breakout enough pins to be useful to me. If I want to program in C there is the bluePill stm32f103c8t (very small). There is lots of ESP32 dev boards around and very easy to build a small form factor board with a Wrover module. The main reason for me to use a STM32F4 is for when I need lots of pins to do lots of stuff.

The board that posted has all pins broken out and is also very small form factor

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