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Cheap STM32 modules

Nigel Goodwin

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Most Helpful Member
Anyone used these cheap 32 bit 72MHz ST based modules, same size as an Arduino Nano, but a LOT faster, and cheap as anything.

I've just had some come, they only cost £1.46 each.

So far I've just confirmed they work OK, by uploading the usual 'blink' program via the Arduino IDE. which you can install STM32 support for.

stm32f103c8t6_pinout_voltage.png
 

picbits

Well-Known Member
Never used one but I've just ordered a few - probably stick them on the shelf with the other couple of hundred Chinese modules I've bought on impulse ..... ;)
 

Mike - K8LH

Well-Known Member
Amazing coincidence... I just received my first pair of these boards yesterday ($1.68 each, including shipping), along with an STLink v2 programmer ($1.94). I tested both boards last night by uploading the 'blink' sketch.

I'm looking forward to lots of reading and research...

Cheerful regards, Mike
 

Nigel Goodwin

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Most Helpful Member
Amazing coincidence... I just received my first pair of these boards yesterday ($1.68 each, including shipping), along with an STLink v2 programmer ($1.94). I tested both boards last night by uploading the 'blink' sketch.
I'm just using the Arduino IDE and an FTDI USB/Serial converter.

Just too cheap to turn down aren't they :D
 

MikeMl

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... I just received my first pair of these boards yesterday ($1.68 each, including shipping), along with an STLink v2 programmer ($1.94)...
Mike, where did you buy them?
How do you tell the Arduino compiler to target this processor?
 

Mike - K8LH

Well-Known Member
I ordered mine from a vendor on AliExpress. Prices seem to be hovering around $1.75 or $1.76 now (prices are somewhat dynamic). Lots of info'... google "STM32F103C8T6 & Arduino"... Checkout the STM32Duino Forum, download Roger Clark's STM32 github repo', drop it into the Arduino 'hardware' folder, select your board in the Arduino IDE, and go...
 

Mike - K8LH

Well-Known Member
Nigel, I got the STLink v2 programmer because I ordered a handful of the little "minimal STM8 development boards" (66¢ each) which require a programmer. The vendor actually sent me an extra STM8 board for free. Anyway, the STLink v2 also works very simply and nicely with the STM32 boards so I think it will be a good investment.
 

Nigel Goodwin

Super Moderator
Most Helpful Member
Nigel, I got the STLink v2 programmer because I ordered a handful of the little "minimal STM8 development boards" (66¢ each) which require a programmer. The vendor actually sent me an extra STM8 board for free. Anyway, the STLink v2 also works very simply and nicely with the STM32 boards so I think it will be a good investment.
Well it was certainly cheap enough :p

In fact it makes me think about ordering one, and I'll check out the STM8 boards as well.
 

DirtyLude

Well-Known Member
I use the STM32, but I have not had much use for these modules as I program/debug them directly. I have been doing some Arduino stuff, though. Does the smaller modules with the Stm32f030 support the Arduino environment?

They look pretty cool, though.
 

Nigel Goodwin

Super Moderator
Most Helpful Member
I use the STM32, but I have not had much use for these modules as I program/debug them directly. I have been doing some Arduino stuff, though. Does the smaller modules with the Stm32f030 support the Arduino environment?
The module I posted above uses the STM32F103C8T6, and that's supported by the Arduino IDE.

Have a look at:

http://grauonline.de/wordpress/?page_id=1004

Here's a screen dump of the Arduino IDE board selector after installing the STM32 support.

Arduino_STM.png
 

large_ghostman

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Most Helpful Member
Where are you getting them from Nigel? Would be very rude not to get some at that price!
 

large_ghostman

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Not sure if its an error or not, does it have 3 or 4 serial on it? it shows 4 but two are named the same. Having said that even 3 RS232 ports cant be sniffed at.
 

large_ghostman

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Most Helpful Member
I presume it's got three, and that one of them can be allocated to alternate pins.
That is some kit for a mad amount of money!! My first thought was the chip must be a rip off, but even if it was............ Not played with the STM before, got to be worth a go :D.

Looking back at old threads with the pic 32, hard to believe we can now pick up kit like this for less than COSTA arm coffee!

I like RS232, having 3 on one chip to play with appeals to my sense of fun! Exams around the corner, so not doing my odd jobs, will need to wait to get a couple.

Funny thing is I just had to pay out for some drawing pens for my design exams, they cost more than the ST board!! Wish I had got the board instead now lol :p
 

large_ghostman

Well-Known Member
Most Helpful Member
I know :D

I didn't need them, I didn't want them - but they were too cheap to turn down!.
Totally agree, at that price its extremely rude not to buy some. It would be like turning down a free drink from your FIL.

Also cheaper than most paper weights....... or door stops :D
 

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