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Looks good quality. Professional package. Tested all 3 by: After power on the blue led flash slowly. Press button stop flash and press again start flash. Show up in PC on USB. The MCU is marked ST, so seems to be ST original.
Nice upgrade from the Blue pill. Very quick delivery
OK
Apparently not weact board anymore, but close enough not to matter. Flashed QMK on it through USB using standard procedure, no issues whatsoever. Running a handwired keyboard with Preonic layout. Has been rock-solid so far.
still to test
Cheap but well assembled. Pcb of good quality. Micro needs no introduction... Powerful.
Superb Produkt. Perfect for experimenting with USB, I2C and SPI.
Excelente
Exactly what I was looking for and easy to setup and run using Arduino. How to use the BOOT0 andNRST to program it took some time to figure out