Bản Mạch Mở Rộng Cnc Shield V 3 Dành Cho Máy In 3d A 4988

I、 product description

The extension plate can be used as a carving machine, 3d printer, etc. Drive extension plate, a total of 4-way stepping motor drive module slot, (Note that this board does not contain a4988 stepping motor driver module, need to be purchased at our store), 4. No motor can drive 4., each stepping motor requires only 2 io mouths, that is to say, 6 io, it 's very convenient to use, farewell to the traditional stepping motor is cumbersome.



Ii.、 introduction of the relationship between uno and module io mouth




The lead for basic control requirements of stepping motors, the other pins are in the carving machine, or 3d printers, we don 't have a detailed explanation here, io corresponds to the figure above.

8-lingering and enthusiastic and enthusiastic (Stepping motor drive enabling end, low level is effective)

7-lingering and lingering with the lingering lingering z. Dir (Directional control of z axis)

6-lingering y-lingering y. Dir (Directional control of the y axis)

5-lingering and lingering and lingering. Dir (Directional control of the axis)

4-the lingering and lingering lingering z. Step (Step control of z axis)

3-lingering y-lingering y. Step (Step control of the y axis)

2-the lingering and lingering and lingering. Step (Step control of the x axis)

//here is a simple stepping motor control program,















/*

//function: Step function: Control stepping motor direction, steps.

//parameters: Dir direction control, dir lead for stepping motor, step pin of step for step motor, step of step stepping

//no return value

*/

Voice step (Boolean dir, byte dypin, byte stepperpin, int stems)

{

Digitalwrite (Dirpin, dir);

Delay (50);

For (Int i 0 I stems I + +) {

Digitalwrite (Stepperpin, high);

Delay microseconds (800);

Digitalwrite (Stepperpin, low);

Delay microseconds (800);

}

}

Voice setup () (//set the foot of the io tube used for stepping motor into output

Pinmode (::dir, output); Pinmode (::stp, output);

Pinmode (Y dir, output); Pinmode (Y stp, output);

Pinmode (Z dir, output); Pinmode (Z stp, output);

Pinmode (En, output);

Digitalwrite (En, low);

}

Voice loop () {

Step (False,::dir,::stp, 200); //x, 200 steps into a circle

Step (False, y dir, y stp, 200); //y 1, 200 steps into a circle

Step (False, z dir, z stp, 200); //z, 200 steps into a circle

Delay (1000);

Step (True,::dir,::stp, 200); //x, 200 steps into a circle

Step (True, y dir, y stp, 200); //y 1, 200 steps into a circle

Step (True, z dir, z stp, 200); //1, 200 steps into a circle

Delay (1000);

}


Experimental phenomena: Stepping motor turns around, pause for 1 second, go on again, it 's a cycle.

It is noteworthy that: Be careful not to invert when plugging the a4988 module, stepping motor connection is:

2a, 2b group (Red, green), 1a, 1b group (Blue, yellow) Want to change direction, changing the location of one group is enough, for example, 2a, exchange with 2b.

No quality assurance, no change in prob