电动车控制器程序和PCB电路板的原理图，有电压保护，转速控制等

用汇编语言编写的51程序，程序有较详细的注释，大部分附有电路原理图和PCB板图。-Language used to compile the 51 procedures, the procedures are more detailed notes, with the majority of the circuit schematic diagram and PCB board.

采用at89c2051单片机实现32灯控制手摇灯，属个人实验演示成功 资料包含完整的pcb原理图和源程序-At89c2051 single chip using 32 hand-signal-controlled lights, an experimental demonstration of the success of personal information includes a complete schematic and pcb source

这是我做的电子单相电能表，是汇编语言的具有时间 单价和报声功能 带有原理图和PCB-This is the electronic single-phase electric energy meter I do, is the assembly language has the time cost and alarming function