超声波，探鱼器 STM32F103C8T6

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5 4 3 2 1 3p3V C1 C1 01uF 01uF P U R W P F R K B D C L 2 2 R R K K 0 0 0 0 1 1 M A F R I E V E C E R G S I W S L A N G S I K L C W S 8 4 7 4 6 4 5 4 4 4 3 4 2 4 1 4 0 4 9 3 8 3 7 3 MCU1 MCU1 9 B P 8 B P 3 D D V 3 S S V 0 T O O B 7 B P 6 B P 5 B P 4 B P 3 B P 5 1 A P 4 1 A P VBAT PC13RTC PC14OSC32IN PC15OSC32OUT PD0OSCIN PD1OSCOUT NRST VSSA VDDA PA0WKUP PA1 PA2 STM32F103C8T6 STM32F103C8T6 VDD2 VSS2 PA13 PA12 PA11 PA10 PA9 PA8 PB15 PB14 PB13 PB12 1 2 3 4 5 6 7 8 9 10 11 12 4 4 C C F F u u......