Banggood

Nice cost effective development board for learning ARM processor. Paired this with the Geekcreit 3.5 Inch TFT Color Display Screen Module. Initially had problem flashing using USB/FTDI Slab. Found R3 on Boot 0 wrong value; IS: 100K, SB 10K resistor. Replaced resistor on module board (underside). Works perfect. Reflashed the standard ST bootloader using the STM32Cube app and now am able to flash code updates on the fly without having to switching the Boot 0 jumper. Overall, a very nice board

Good quality blue pill. has STM32 marking

Fonctionne bien. Par contre, la valeur de la résistance R3 de 100K est incorrecte, elle doit être de 10K pour pouvoir programmer en mettant le cavalier boot0 à 1 puis peser sur RESET. J'ai soudé une résistance 10K conventionnelle "through hole" en parallèle ( donne proche de 9K avec cet ajout et corrige le problème).

This is an ARM Cortex M3 board ("blue pill") running at 72Mhz with 64k flash and 20k SRAM. This is a good low cost general purpose MCU. The board form factor is roughly the same as an Arduino nano. The chip has better performance than a nano 328p, but programming it is clumsier. I recommend using a STLINK adaptor for programming. The ST datasheet can be found at: https://www.st.com/en/microcontrollers-microprocessors/stm32f103c8.html

Functions as described... In case you are experiencing problems in using st-flash, you might try to rebuild the binaries from the latest repository on github

haven't tried it but looks good

A cheap and powerful alternative to Arduino

Very good and fastt delivery

As described.

good