Arduino (green/white) and the additional naming labels are not indicated on the board.Īlso notice that the on-board LED is connected to pin PC_13 and, via a resistor, to +3.3V. Instead of 'PA_1' you can find the label 'A1' on the board). Please notice that in order to fit the small size board, the leading 'P' and the '_' characters are omitted from labels indicated on the board (e.g. SERIAL_RX=PA_3 I2C_SDA=PB_9 SPI_MISO=PA_6 For more details on pin definitions see Table 5 in the Datasheet. Maximum allowed I/O voltage levels (next to pin names) are courtesy of Thor Sten to help you avoid board damage. Flexible board power supply: USB VBUS or external source (3.3V, 5V).GPIO (32) with external interrupt capability.The board is equipped with an STM32F103C8T6 microcontroller compatible with the NUCLEO-F103RB platform. It provides an affordable (about $2 on eBay) and flexible way for users to try out new ideas and build prototypes.
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