MicroPython Forum (Archive)

Let me know if anyone finds a real tiny board using STM32F4 in QFN48 package. I can't seem to find one (an the one I designed myself went up in smoke :D ). Not in QFN48, but quite small, only with limited pins exposed http://www.ebay.com/sch/i.html?_from=R40&_sacat=0&LH_BIN=1&_nkw=F4+STM32F405+Flig...

There are even better boards with STM32F407ZET6 for ~13-17 US$ with optional external SDRAM (1 MByte IS62WV51216BLL, ~2-5 US$) http://www.ebay.com/sch/i.html?_from=R40&_sacat=0&LH_BIN=1&_nkw=STM32F407ZET6&_sop=15 https://www.aliexpress.com/w/wholesale-STM32F407ZET6-development-board.html?spm=2114.01...

Many similar boards are now available on ebay for ~ 12 US$ with added 2MBytes SPI Flash, RTC Battery and more ... http://www.ebay.com/sch/i.html?_odkw=STM32F407VET6&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.TRS0&_nkw=Core407V+STM32F407VET6+STM32+Cortex-M4+Development+Board+Mainboar...

You can easily connect EMW3165 to Diiscovery ST-LINK SWD port. Remove CH3 jumpers and connect SWCLK, GND, SWDIO, NRST from CN2 to EMW3165. No need to connect VDD. Update st-link firmware first, than you can read the content of the flash and save it as backup. I've tested it with WiFiMCU board. http:...