I am trying to run multiple 12V motors from my arduino through the serialport - and would, as a start, like to be able to turn them on individually.
i have no problem with writing messages to the arduino through the serialport ( using max/msp), but Im having trouble with the metro.
here´s my code: (from the example on the website)
#include <Metro.h>
/*
instead of blinking an led I wil use it to turn RELAYS off and ON to control the motors speed
*/
// Instanciate a metro object and set the interval to 250 milliseconds (0.25 seconds).
int val = 0; // reading data from the seral port
Metro ledPin02_metro = Metro(250);
int ledPin02 = 2; // here i attached my RELAY 01
Metro ledPin03_metro = Metro(250);
int ledPin03 = 3; // here i attached my RELAY 02
void setup()
{
pinMode(ledPin02,OUTPUT);
pinMode(ledPin03,OUTPUT);
Serial.begin(9600);
}
void loop()
{
val = Serial.read();
if(val == '1'){ // if the number 1 is recieved from the serial port
if (ledPin02_metro.check() == 1) { // check if the metro has passed it's interval .
digitalWrite(ledPin02,!digitalRead(ledPin02)); // change the state of pin 3.
if (digitalRead(ledPin02)==HIGH) {
ledPin02_metro.interval(250); // if the pin is HIGH, set the interval to 0.25 seconds.
}
}
}
if(val == '2'){ // if the number 1 is recieved from the serial port
if (ledPin03_metro.check() == 1) { // check if the metro has passed it's interval .
digitalWrite(ledPin03,!digitalRead(ledPin03)); // change the state of pin 3.
if (digitalRead(ledPin03)==HIGH) {
ledPin02_metro.interval(250); // if the pin is HIGH, set the interval to 0.25 seconds.
}
}
}
}
Im running version 0006 on my arduino is that an issue ?
before i tried the metro solution my code looked like this:
int count01 = 0;
int count02 = 0;
int ledPin02 = 2; // RELAY connected to digital pin 2
int ledPin03 = 3; // RELAY connected to digital pin 3
int val = 0; // variable to recieve data from the serialport
void setup()
{
pinMode(ledPin02, OUTPUT); // sets the digital pin as output
pinMode(ledPin03,OUTPUT);
Serial.begin(9600);
}
void loop(){
val = Serial.read();
switch (val) {
case 1:
for(int count01 = 0; count01 <= 10; count01++){
digitalWrite(debugFix,HIGH);
digitalWrite(ledPin02,HIGH);
delay(20);
digitalWrite(ledPin02,LOW);
delay(20);
}
break;
case 2:
for(int count02 = 0; count02 <= 10; count02++){
digitalWrite(debugFix,HIGH);
digitalWrite(ledPin03,HIGH);
delay(100);
digitalWrite(ledPin03,LOW);
delay(100);
}
break;
default:
digitalWrite(ledPin02,LOW);
digitalWrite(ledPin03,LOW);
}
}
but in this exhample i think i get trouble with the delay()
my aim is to control a PWM-like pulse on 7 relays from the serialport -- if there is anyone on the forum that knows how to solve my problem then i would be wery greatfull to hear from you
best regards
martin