[{"title":"( 6 个子文件 2.14MB ) 基于STC的51单片机电子琴 打板验证可行(内附PCB+原理图+源码)-电路方案","children":[{"title":"电子琴.PcbDoc <span style='color:#111;'> 2.17MB </span>","children":null,"spread":false},{"title":"Sheet1.SchDoc <span style='color:#111;'> 142.00KB </span>","children":null,"spread":false},{"title":"电子琴.c <span style='color:#111;'> 2.01KB </span>","children":null,"spread":false},{"title":"FpyRlnTl2utbKpo2LTd1Egm4K0Lw.png <span style='color:#111;'> 177.59KB </span>","children":null,"spread":false},{"title":"FrUkqjiJja6I80zleDVwCFsgFB2R.png <span style='color:#111;'> 42.14KB </span>","children":null,"spread":false},{"title":"FrmhjEXnwjuaMuYXWnp2XsDcxYBG.png <span style='color:#111;'> 28.20KB </span>","children":null,"spread":false}],"spread":true}]