problem with code

[feiji]

Hello
i've been trying to control brushless motors with a simple code with arduino, when i run the following code nothing happens, the motors do not start
/////////////////
#include <Servo.h>
Servo m1;
Servo m2;

void setup() {
Serial.begin(9600);
m1.attach(5);
m2.attach(7);
m1.writeMicroseconds(1000);
m2.writeMicroseconds(1000);
delay(1000);
}

void loop() {
m1.writeMicroseconds(1150);
m2.writeMicroseconds(1150);
delay(1000);
m1.writeMicroseconds(1200);
m2.writeMicroseconds(1200);
delay(1000);
m1.writeMicroseconds(1150);
m2.writeMicroseconds(1150);
delay(1000);
m1.writeMicroseconds(1100);
m2.writeMicroseconds(1100);
delay(1000);
/////////////////////////////

but when i run this code by adding the last 3 lines to the code : (m1.writeMicroseconds(1000)..)
it works perfectly.


#include <Servo.h>
Servo m1;
Servo m2;

void setup() {
Serial.begin(9600);
m1.attach(5);
m2.attach(7);
m1.writeMicroseconds(1000);
m2.writeMicroseconds(1000);
delay(1000);
}

void loop() {
m1.writeMicroseconds(1150);
m2.writeMicroseconds(1150);
delay(1000);
m1.writeMicroseconds(1200);
m2.writeMicroseconds(1200);
delay(1000);
m1.writeMicroseconds(1150);
m2.writeMicroseconds(1150);
delay(1000);
m1.writeMicroseconds(1100);
m2.writeMicroseconds(1100);
delay(1000);
m1.writeMicroseconds(1000);
m2.writeMicroseconds(1000);
delay(1000);
}

the problem is that i can not use that line(turn the motor off by sending 1000 ) in an other program which requires the continuous running of the motor, so is there any suggestion to what i might be doing wrong ? or a solution to this problem ?
Thank you

 

[LoneRCRanger]

No idea!

 

[feiji]

No idea!

do you know any ohter way to make the motors turn with arduino ?

 

[ringolong]

Is 1000 supposed to turn the motors off? Have you tried
m1.writeMicroseconds(900);
m2.writeMicroseconds(900);

I have not written any arduino code, but I have thought about it for controlling a slider.

 

[feiji]

Is 1000 supposed to turn the motors off? Have you tried
m1.writeMicroseconds(900);
m2.writeMicroseconds(900);

I have not written any arduino code, but I have thought about it for controlling a slider.

1000 is the minimum value for the motors i'm using, and it's the standard minimum value for brushless motors. when it's 1000, the motors are off.

 

[ringolong]

Sounds like it could be that the esc is not calibrated. Have you calibrated the escs?

 

[feiji]

Sounds like it could be that the esc is not calibrated. Have you calibrated the escs?

yes i did, and it works fine with the seocond code

 

[ringolong]

What happens when you call this at the beginning of the loop function or previous to the code that calls the loop function?
m1.writeMicroseconds(1000);
m2.writeMicroseconds(1000);

 

[feiji]

What happens when you call this at the beginning of the loop function or previous to the code that calls the loop function?
m1.writeMicroseconds(1000);
m2.writeMicroseconds(1000);

this works as an initialisation for the motors , it's a must so that they can start rotating, i used it in the setup funtion to initialise them and i used in the end of the loop function because that was the only way i could make the motors rotate, otherwise , if i remove this line from the end of the loop funtion , rhe motors won't even start

 

[ringolong]

do you have the m2 class? I would like to take a look at it.

It should tell us what is going on in the background.

 

[feiji]

do you have the m2 class? I would like to take a look at it.

It should tell us what is going on in the background.

m2 class ? sorry what is that ?

 

[ringolong]

Servo.h and Servo.m.

 

[ringolong]

I think you are using the wrong class for your purpose after digging a little deeper.

The servo class is for servos, which have a start, stop and the speed in-between. I think you are using the wrong classes(Servo.h)

Look for a three phase motor class. (try writing one up if you can't find one)

 

[feiji]

i

I think you are using the wrong class for your purpose after digging a little deeper.

The servo class is for servos, which have a start, stop and the speed in-between. I think you are using the wrong classes(Servo.h)

Look for a three phase motor class. (try writing one up if you can't find one)

i think the class is fine, i just retried the code without turning off the motors and it worked fine.