PA3/UART2_RX1PA2/UART2_TX2PA15/PIN_A43PB6/UART1_TX4PB7/UART1_RX5PA16PA13/SWDIO7PA14/SWCLK8PA12/I2C_SCL9PA11/I2C_SDA10GND11RF12PA7/SPI1_MOSI13PA6/SPI1_MISO14PA5/SPI1_CLK15PA4/SPI1_NSS16GND17GND18PA819PA920BOOT021RST22GND23VDD24PA10/PIN_A325PB2/PIN_A226PB1227GND28PA029PB530PB4/PIN_A131PB3/PIN_A032