230 Ω VCC TRIG ECHO GND Raspberry Pi Pico GP0 VBUS GP1 VSYS GND GND GP2 3V3_EN GP3 3V3_OUT GP4 ADC_VREF GP5 GP28 GND GND GP6 GP27 GP7 GP26 GP8 RUN GP9 GP22 GND GND GP10 GP21 GP11 GP20 GP12 GP19 GP13 GP18 GND GND GP14 GP17 GP15 GP16