Question hit a brick wall with diy servo and SMC3 (youtube)

I made a youtube of my blathering of commentary. I good bit lost on this one. did try 2 other brand new motor drivers, no go on each.

This may be silly or I have missed something. but did you press the button next to the Motor1 checkbox (labelled "OFF") in the top left of the program. I was watching the video and it was always off from what I saw. If you push that button it will enable the output to power the motor (label will turn to "ON").

As @Alexey says, just make sure the POT is within the limits (green line between red lines) before trying to turn motor on or it will just switch off again straight away.

thanks for the replies! Yeah, turning on the motor would help...

how bout now?

I suppose the only thing now is if you could supply us with a diagram to exactly how you have the connections going from the arduino to the L298N.
So not a diagram that you have followed but if you could draw it out, pin to pin exactly how it is shown in the video.

Cheers!

i think these boards need to be in mode2 to work. have you configured it in the scetch before uploading it to the arduino?

attached my photochopped bit on the wiring. For the code, I have only commented out Mode 1. Never did try Mode 2.

Mode2 more sporadic feedback, still no effect however

I would expect MODE1 is correct if that's an L298 Dual H-Bridge board?

The arduino is obviously communicating to the PC ok because the feedback line is working.
The wiring between arduino and h-bridge looks ok (again assuming an L298 h-bridge)

One thought, given the position of the pins on the h-bridge - should the motor be connected to the other side connector?

If you can provide details of h-bridge of h-bridge circuit that would help.

I cant seem to find the exact board that you have in your picture as it has a double row header strip next to the power inputs.
The only other ones I have found have only had a single row header. If they are basically the same then yes the wiring looks fine except for the motor should be connected to the other side.

Edit, Also the 5v line going to the bread board from the motor driver is redundant, you have two 5v lines going to the pot, one from the arduino and one from the motor drive.

its an OPSEPP L298 dual h bridge driver MTD-1 Did just swap motor to corresponding side

good point! removed that and tested, still not getting feedback to follow sine wave, nor motor to turn though.

Just to clarify, you aren't trying to run the code without any mode selected are you?

The correct line in the code should be:

#define MODE1

or in its place:

#define MODE2

MODE1 should be the correct selection.

If you still cannot get the motor to run upload this to the arduino:

/* L298N DC motor example */

int IN1=2;
int IN2=3;
int ENA=9;
void setup()
{
pinMode(IN1,OUTPUT);
pinMode(IN2,OUTPUT);
}
void loop()
{
analogWrite(ENA, 200);// motor speed
digitalWrite(IN1,LOW);// rotate forward
digitalWrite(IN2,HIGH);
delay(2000);
digitalWrite(IN1,HIGH);// rotate reverse
digitalWrite(IN2,LOW);
delay(2000);
}

If you still cannot get the motor to run upload this to the arduino:

/* L298N DC motor example */



Its ALIVE WOOOOO!!!

The only thing at this stage that I could suggest is if you try to upload an un-modified version of SMC3 code to the arduino and try the sine "Out Mode" again in the SMC3 utils.

I do note on the L298 example, reverse seems nil compared to forward. Tried uploading v7.0, .63, and 6.0 to no effect

Try changing from:

digitalWrite(IN1,HIGH);// rotate reverse
digitalWrite(IN2,LOW);
delay(2000);

to

digitalWrite(IN1,LOW);// rotate reverse
digitalWrite(IN2,LOW);
delay(2000);

If you are still not getting a reverse speed on the motor then the arduino might have a dud output.

You could try using different pins on the arduino like this:

int IN1=4;
int IN2=5;
int ENA=10;

and re-wire accordingly.