Chinese Micropython Clones(?)

Discussion and questions about boards that can run MicroPython but don't have a dedicated forum.
Target audience: Everyone interested in running MicroPython on other hardware.
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bitninja
Posts: 98
Joined: Thu Sep 15, 2016 4:09 pm
Location: Spring, Texas

Chinese Micropython Clones(?)

Post by bitninja » Fri May 04, 2018 2:53 pm

I came across this site... http://www.micropython.net.cn/ and was wondering what boards these are most similar too. Most of the site is in Chinese, so I can't tell very much. Are these Pyboard compatible clones... or are they more like the STM Discovery boards?

loboris
Posts: 271
Joined: Fri Oct 02, 2015 6:19 pm

Re: Chinese Micropython Clones(?)

Post by loboris » Fri May 04, 2018 6:19 pm

There are couple of pyboard compatible boards like this or this one and some direct clones

Look at the Google translated page
Same for TPYBoard_V102

cefn
Posts: 205
Joined: Tue Aug 09, 2016 10:58 am

Re: Chinese Micropython Clones(?)

Post by cefn » Sun May 06, 2018 7:35 am

What is the moral/legal status of these? Illegal, stolen intellectual property or legitimate reuse of open-licensed designs. Not sure the licensing status of pyboard.


bitninja
Posts: 98
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Location: Spring, Texas

Re: Chinese Micropython Clones(?)

Post by bitninja » Sun May 20, 2018 6:00 pm

Well I couldn't help myself...
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The build quality was so-so in my opinion, as I expected. But it does work with everything I've tried so far.

loboris
Posts: 271
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Re: Chinese Micropython Clones(?)

Post by loboris » Sun May 20, 2018 6:46 pm

bitninja wrote:
Sun May 20, 2018 6:00 pm
The build quality was so-so in my opinion, as I expected. But it does work with everything I've tried so far.
Could you give more details about "so-so" build quality rating, please.

bitninja
Posts: 98
Joined: Thu Sep 15, 2016 4:09 pm
Location: Spring, Texas

Re: Chinese Micropython Clones(?)

Post by bitninja » Mon May 21, 2018 12:34 am

Don't get me wrong, I am happy with the board... it's just some of the finishing work like the headers... they were soldered in pretty quickly apparently...
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Notice the angle?

And some of the soldering is kind of blobish.
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It's not terrible by any measure... the fine-pitch work is good and the silk-screening is aligned well and readable... even at the very edges of the board.

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pythoncoder
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Re: Chinese Micropython Clones(?)

Post by pythoncoder » Mon May 21, 2018 6:35 am

An interesting test would be measure the current consumption after issuing pyb.standby(). A Pyboard V1.1 will take about 6μA. If they've used a cheapskate regulator it will be higher.
Peter Hinch

bitninja
Posts: 98
Joined: Thu Sep 15, 2016 4:09 pm
Location: Spring, Texas

Re: Chinese Micropython Clones(?)

Post by bitninja » Mon May 21, 2018 2:52 pm

I don't have the equipment with me to run a test, but I can say that they seem to have used a "662K" regulator...
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Which leads me to this info... https://www.mikrocontroller.net/attachm ... 6206N3.pdf
662K.png
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