image/svg+xml BUTTON LED_USB LED4 LED2 LED1 LED3 I2C UART SPI SWD 5V P0_11 P0_7 P0_4 P0_5 GND RST 3V3 P0_12 P0_13 P0_14 P0_16 P0_22 VIN GND P0_9 P0_2 P1_27 P1_25 P1_24 P1_17 P1_29 IOREF GND P0_19 P0_18 P0_23 P0_8 P1_26 P1_5 P1_18 P0_17 SDA GND SCL 3V3 TX GND RX 3V3 PWR ~ ~ ~ ~ ~ ~ ~ ~ ~ ANALOG A0 GND A1 3V3