[{"title":"( 2 个子文件 360KB ) 共享单车定位智能锁 HY2640+MC20_Bicycle lock pads设计硬件原理图+PCB文件.zip","children":[{"title":"HY2640+MC20定位共享单车智能锁pads设计原理图+PCB文件","children":[{"title":"HY2640+MC20_Bicycle lock.pcb <span style='color:#111;'> 1.15MB </span>","children":null,"spread":false},{"title":"HY2640+MC20_Bicycle lock.sch <span style='color:#111;'> 264.18KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]