XY平面绘图仪，由单片机外接键盘输入信号，C52单片机输出控制信号，经过两个细分驱动器驱动X、Y两个电机移动完成图形绘制。单片机采用逐点比较法插补算法完成直线和圆弧的绘制，通过直线和圆弧的组合完成图形的绘制，最终实现了画线、画圆弧、画矩形、甚至可以实现复杂的图形绘制。(The XY planar plotter is input from MCU to keyboard. Output signal is controlled by C52 microcontroller. After two subdivision drivers drive X and Y, two motors are moved to complete drawing. The single chip point comparison interpolation algorithm is used to complete the drawing of straight lines and circular arcs, and the drawing is completed through the combination of straight lines and circular arcs. Finally, it realizes drawing, drawing circles, drawing rectangles, and even realizing complex graphics rendering.)