arduino如何控制多个步进电机

1、如图左上A两孔B两孔，分别接步进电机的蚵播噍疸四线（同相的两组，一组接A，另一接B），右上接电，右下接arduino的IO口：分别是step，dir，和地

2、arduino uno 有14个数字口除以2，最多能接7个（共地）

3、需要下载库AccelStepper麻质跹礼例如12是step引脚,13是dir引脚·······················蟾茸渌鳌········································#include <AccelStepper.h>AccelStepper ROTA(1,12,13);ROTA.setMaxSpeed(10000);ROTA.setAcceleration(3200);ROTA.setSpeed(8000);ROTA.runToNewPosition(0);ROTA.runToNewPosition(step);