Now available from PMD Way is this great value STM32F411 "BlackPill" Development Board. This powerful yet inexpensive board can be used with microPython, CircuitPython, Arduino and more - see links below. Based on the STM32F411CEU6, which has the following specifications: 512 KB of flash 128 KB of SRAM CPU speed of 100 MHz You can solder your own SOIC flash memory on to the pads on the PCB, such as a 2MB SPI unit. Board features: USB C connector 3.3V 100mA LDO regulator 25MHz and 32.768kHz crystals Two buttons Boot button for entering DFU bootloader Power LED and a separate user LED connected to PC13 Header pins are included but not soldered to the board. Free delivery, worldwide. More information: Board schematic STM32 Datasheet STM32Duino Support Use with MicroPython Use with CircuitPython Dimensions: Pinouts: Don't forget to check out our full range of STM32 products if this doesn't meet your needs. And as always, all orders receive free delivery. And remember ... if you: can't find what you need not sure what to order want a bulk deal need technical support or just want to have a talk ... Please email us via [email protected]. To keep up to date with new products, news, tutorials and more - we're on x, Facebook, Instagram, threads, reddit, and instructables.