同时在两个针脚上使用arduino色调功能
同时在两个针脚上使用arduino色调功能
提问于 2020-11-18 13:34:54
我正在尝试用Arduino Mega制造一辆智能汽车，有时我需要在特定的时间打开两个后轮。有人告诉我，我可以使用音调设置“数字高”时间，但由于我需要它们同时工作，有没有办法为一条线上的两个引脚设置音调，或者做点什么呢？
谢谢你的帮助。
#include <Servo.h>
/////////////////////
Servo servo;
/////////////////////
int trig = 12;
int echo = 13;
long duration;
int distance;
int dist_right;
int dist_left;
int ang = 90;
unsigned int value = 255;
unsigned long tone_time = 3000;
float forward_time;
/////////////////////
int ena = 35;
int in1 = 7;
int in2 = 6;
int in3 = 5;
int in4 = 4;
int enb = 47;
/////////////////////
void setup()
{
Serial.begin(9600);
servo.attach(22);
pinMode(trig, OUTPUT);
pinMode(in1, OUTPUT);
pinMode(in2, OUTPUT);
pinMode(in3, OUTPUT);
pinMode(in4, OUTPUT);
pinMode(ena, OUTPUT);
pinMode(enb, OUTPUT);
pinMode(echo, INPUT);
digitalWrite(ena, HIGH);
digitalWrite(enb, HIGH);
}
void loop() {
servo.write(90);
distance = dist();
if(distance<=15)
{
for(ang;ang>=0;ang-=2)
{
servo.write(ang);
delay(30);
}
dist_right = dist();
Serial.println(dist_right);
for(ang;ang<=180;ang+=2)
{
servo.write(ang);
delay(30);
}
dist_left = dist();
Serial.println(dist_left);
for(ang;ang>=90;ang-=2)
{
servo.write(ang);
delay(30);
}
if(dist_right>=dist_left)
{
tone(in3, value, tone_time);
}
else if(dist_right<dist_left)
{
tone(in1, value, tone_time);
}
servo.write(90);
ang=90;
}
else{
forward_time=distance/25;
tone((in1,in3), value, forward_time);
}
}
int dist(){
digitalWrite(trig, LOW);
delayMicroseconds(2);
digitalWrite(trig, HIGH);
delayMicroseconds(10);
digitalWrite(trig, LOW);
duration = pulseIn(echo, HIGH);
distance= duration*0.034/2;
return distance;
}回答 1
Stack Overflow用户
发布于 2020-11-18 14:06:37
我有99.99%的把握，如果你一个接一个地转动，你的马达不会感觉到时差。试一下最简单的例子，你就会明白了。
// Define your wheel control pins (use same as in your mega)
const int motor1Pin = 5;
const int motor1Pin = 6;
// somewhere in setup method
outputMode(motor1Pin, OUTPUT);
outputMode(motor2Pin, OUTPUT);
// Create function to turn motors and remember the time
unsigned long turnMotorsOn(int seconds) {
// turn motors ant return time when they should be stopped
return millis() + seconds * 1000;
}
// In you code check if it is time to turn off
if (millis() > timeWhenTurnMotorsOff) {
// turn them off
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/64887638
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