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just found a cortex m3 wifi SOM for 2$

Posted: Sun Jul 16, 2017 9:12 pm
by inaba_nl
i was wondering if i should post it here, but i basically found a stamp sized cortex m3 running at 80mhz (or higher by overclocking) with 512k ram, 1024k flash, onboard wifi for 2$ (stamp module only, for custom pcb's), or $3,50 (including breadboard adapter, assembled).
for a uart programmer you'd pay 2$

actually, the module is a bit smaller than a post stamp

it includes arduino IDE support too

now is my question to you all: is it worth it to compare this to a blue or red pill board (i know it doesn't have as agood support as those red/blue pill boards)?

and am i allowed to link to the product on here?

Re: just found a cortex m3 wifi SOM for 2$

Posted: Mon Jul 17, 2017 8:38 am
by stevestrong
I would be interested to see such kind of board.

Re: just found a cortex m3 wifi SOM for 2$

Posted: Mon Jul 17, 2017 12:31 pm
by racemaniac
you're allowed to link to products here (and also name them :p )
we may be interested :)

Re: just found a cortex m3 wifi SOM for 2$

Posted: Thu Jul 20, 2017 12:07 pm
by stevestrong
Any update on this?

@inaba_nl, can you please post some links?

Re: just found a cortex m3 wifi SOM for 2$

Posted: Thu Jul 20, 2017 1:03 pm
by zoomx
Searching for "cortex m3 80 mhz 512k ram 1024k flash wifi board" you found this topic.

Maybe he is talking about RTL8710 boards
https://www.seeedstudio.com/RTL8710-WiF ... -2793.html
but it is faster, 160MHz
RTL8710 easy programming by Arduino IDE
https://hackaday.io/project/19163-rtl87 ... rduino-ide

Re: just found a cortex m3 wifi SOM for 2$

Posted: Thu Jul 20, 2017 9:43 pm
by RogerClark
I looked on eBay and they cost $4.50 Australian dollars, but ESP8266 is less than $3 and EPS32 only costs $6

Apart from it being ARM core, rather than MIPS ( Xtensis) core, I don't see the point in using this device, when there are cheaper tried and tested alternatives