按下正转按钮,步进电机正转,松开按钮电机停止,到达限位开关后电机停止。按一下反转按钮,电机反转,松开按钮,电机停止,到达限位开关电机停止。ardunio代码。
时间: 2024-02-25 20:53:23 浏览: 228
好的,下面是针对您的需求编写的 Arduino 代码:
```C++
// 定义引脚
const int buttonFwdPin = 2; // 正转按钮引脚
const int buttonRevPin = 3; // 反转按钮引脚
const int limitSwitchPin = 4; // 限位开关引脚
const int motorPin1 = 5; // 步进电机引脚1
const int motorPin2 = 6; // 步进电机引脚2
const int motorPin3 = 7; // 步进电机引脚3
const int motorPin4 = 8; // 步进电机引脚4
// 定义变量
int buttonFwdState = 0; // 正转按钮状态
int buttonRevState = 0; // 反转按钮状态
int limitSwitchState = 0; // 限位开关状态
int motorStep = 0; // 步进电机当前步数
// 步进电机控制函数
void stepMotor(int steps) {
// 步进电机步数表
int stepTable[8][4] = {{1, 0, 0, 1},
{1, 0, 0, 0},
{1, 1, 0, 0},
{0, 1, 0, 0},
{0, 1, 1, 0},
{0, 0, 1, 0},
{0, 0, 1, 1},
{0, 0, 0, 1}};
// 步进电机方向
int direction = (steps > 0) ? 1 : -1;
// 计算步进电机步数
steps = abs(steps);
// 控制步进电机
for (int i = 0; i < steps; i++) {
motorStep += direction;
if (motorStep > 7) motorStep = 0;
else if (motorStep < 0) motorStep = 7;
digitalWrite(motorPin1, stepTable[motorStep][0]);
digitalWrite(motorPin2, stepTable[motorStep][1]);
digitalWrite(motorPin3, stepTable[motorStep][2]);
digitalWrite(motorPin4, stepTable[motorStep][3]);
delay(10);
}
}
void setup() {
// 初始化引脚
pinMode(buttonFwdPin, INPUT_PULLUP);
pinMode(buttonRevPin, INPUT_PULLUP);
pinMode(limitSwitchPin, INPUT_PULLUP);
pinMode(motorPin1, OUTPUT);
pinMode(motorPin2, OUTPUT);
pinMode(motorPin3, OUTPUT);
pinMode(motorPin4, OUTPUT);
}
void loop() {
// 检测正转按钮状态
buttonFwdState = digitalRead(buttonFwdPin);
if (buttonFwdState == LOW) {
// 步进电机正转
stepMotor(1);
// 等待松开按钮或到达限位开关
while (digitalRead(buttonFwdPin) == LOW || digitalRead(limitSwitchPin) == LOW) {}
}
// 检测反转按钮状态
buttonRevState = digitalRead(buttonRevPin);
if (buttonRevState == LOW) {
// 步进电机反转
stepMotor(-1);
// 等待松开按钮或到达限位开关
while (digitalRead(buttonRevPin) == LOW || digitalRead(limitSwitchPin) == LOW) {}
}
}
```
需要注意的是,代码中的 `stepMotor` 函数控制步进电机正转或反转,参数为步数,正数表示正转,负数表示反转。另外,步进电机的引脚连接需要按照代码中的注释进行连接。
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