基于AVR單片機的步進電機控制器設計:介紹了步進電動機的發展史,及國內的現狀和步進電動機未來的應用前景。并且闡述了步進電動機轉速、角度、轉矩的控制原理。本文闡述了一種步進電機控制器的設計方案，并繪制了原理圖和PCB板圖，撰寫了程序源代碼。實現了對步進電動機轉速、角度的控制，并完成了實物的制作。這期間主要使用protel99se軟件繪制原理圖和制板，使用proteus7.1軟件進行程序代碼的仿真和功能的理論驗證。最后通過硬件的調試驗證程序代碼的實際功能，完成對控制器的設計。
關鍵詞
AVR單片機；步進電動機；控制器。
Abstract
Introduction step enter electric motor of development history, and local present condition and step enter electric motor future of application foreground.And elaborated a step to enter electric motor to turn soon, angle, turn Ju of control principle.This text elaborated a kind of step enter electrical engineering controller of design project, and drew principle diagram and PCB plank diagram, composed a procedure source a code.Realization to step enter the electric motor turn soon, angle of control, and completion real object of creation.This period main usage the protel 99 se the software draw principle diagram and make plank, usage proteus 7.1 softwares carry on an imitate of procedure code true with the theories of the function verification.The end experiment certificate procedure a code through an adjust of hardware of actual function, completion design controller.
Key words
AVR? MCU; Stepper Motor; Controller.