[{"title":"( 9 个子文件 679KB ) 超声波测距系统需配合超声波测距传感器HC-SR04","children":[{"title":"超声波测距AD文件原理图加PCB加keil工程自己制作测试可用","children":[{"title":"超声波.SchDoc <span style='color:#111;'> 153.00KB </span>","children":null,"spread":false},{"title":"配套KEIL工程 89C52和stc12c5A60S2都可用,改一下头文件即可.zip <span style='color:#111;'> 50.09KB </span>","children":null,"spread":false},{"title":"PCB10.PcbDoc <span style='color:#111;'> 754.50KB </span>","children":null,"spread":false},{"title":"超声波.PrjPCB <span style='color:#111;'> 42.34KB </span>","children":null,"spread":false},{"title":"CAMtastic2.Cam <span style='color:#111;'> 26.50KB </span>","children":null,"spread":false},{"title":"CAMtastic1.Cam <span style='color:#111;'> 96.97KB </span>","children":null,"spread":false},{"title":"超声波.PrjPCBStructure <span style='color:#111;'> 48B </span>","children":null,"spread":false},{"title":"__Previews","children":[{"title":"超声波.SchDocPreview <span style='color:#111;'> 61.18KB </span>","children":null,"spread":false},{"title":"PCB10.PcbDocPreview <span style='color:#111;'> 53.80KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true}]