AT24C08 STM32F103RBT6A0 -> 1 -> GNDA1 -> 2 -> GNDA2 -> 3 -> GNDGND -> 4SDA -> 5 -> PB7 -> I2C1_SDASCL -> 6 -> PB6 -> I2C1_SCLWP -> 7 -> GNDVCC -> 8