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"I. Introduction of products
The expansion board can be used for engraving machine, 3D printer driver extension plate, a total of four stepper motor driver module slot. (note Moto Sako does not contain the a4988 stepper motor driver module, need to be in the store to purchase another) can be driven by the 4 road into the motor, and each step electric machine only need two IO mouth. That is to say, six IO mouth can be a very good management, the three step stepper motor, use very convenient, bid farewell to the traditional stepper motor operation is complicated.
2. UNO Arduino and module IO mouth correspondence describes
Stepper motor control pin, the pin is in the engraving machine, or 3D printer is used, here we make detailed, IO corresponding pictured above.
UNO---------------------- Arduino expansion board
8 ------------------------ (EN stepper motor drive enable, active low)
7 and Z.DIR (Z axis direction)
6 and Y.DIR (Y axis direction)
5 and X.DIR (X axis direction)
4 conducting Z.STEP (Z axis stepping control)
3 conducting Y.STEP (Y axis stepping control)
2 conducting X.STEP (X axis stepping control)
""Here is a simple stepper motor control program,
#define EN / / 8 stepping motor enable, active low
Direction control of X_DIR #define 5 //X axis stepper motor
Direction control of Y_DIR #define 6 //y axis stepper motor
Direction control of Z_DIR #define 7 //z axis stepper motor
X_STP #define 2 //x axis stepping control
Y_STP #define 3 //y axis stepping control
Z_STP #define 4 //z axis stepping control
*
/ / function: step function: stepper motor control direction, the number of steps.
/ / parameters: control the direction of dir, dirPin corresponding stepper motor dir pin, stepperPin corresponding stepper motor step pin, steps step by step number
/ / no return value
* /
Step void (DIR byte, dirPin Boolean, stepperPin byte, steps int)
{
DigitalWrite (dirPin, DIR);
Delay (50);
For (I int = 0; I < steps; i++) {
DigitalWrite (stepperPin, HIGH);
DelayMicroseconds (800);
DigitalWrite (stepperPin, LOW);
DelayMicroseconds (800);
}
}
Void (setup) {// stepper motor will be used in the IO pin is set to output
PinMode (X_DIR, OUTPUT); pinMode (X_STP, OUTPUT);
PinMode (Y_DIR, OUTPUT); pinMode (Y_STP, OUTPUT);
PinMode (Z_DIR, OUTPUT); pinMode (Z_STP, OUTPUT);
PinMode (EN, OUTPUT);
DigitalWrite (EN, LOW);
}
Loop void () {
Step (false, X_DIR, X_STP, 200); //X axis motor reverses 1 laps, and the 200 step is a circle
Step (false, Y_DIR, Y_STP, 200); //y axis motor reverses 1 laps, and the 200 step is a circle
Step (false, Z_DIR, Z_STP, 200); //z axis motor reverses 1 laps, and the 200 step is a circle
Delay (1000);
Step (true, X_DIR, X_STP, 200); //X axis motor is rotating 1 laps, the 200 step is a circle
Step (true, Y_DIR, Y_STP, 200); //y axis motor is rotating 1 laps, the 200 step is a circle
Step (true, Z_DIR, Z_STP, 200); //z axis motor is rotating 1 laps, the 200 step is a circle
Delay (1000);
}
The experimental phenomena: stepper motor reversal in a circle, and then pause a second, being a circle, so the cycle.
It is worth noting that: the plug in the A4988 module when the attention should not be inserted, the stepper motor wiring is:
2A, 2B for a group (red, green), 1B, 1A for a group (blue, yellow) want to change direction, change the location of one group, such as 2A, and 2B exchange.


"
  • New CNC shield V3 Arduino engraving machine expansion board / 3D printer A4988 driver board
  • New CNC shield V3 Arduino engraving machine expansion board / 3D printer A4988 driver board
  • New CNC shield V3 Arduino engraving machine expansion board / 3D printer A4988 driver board

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    Everything okay. Thanks!

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    recommended seller..!!!

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    Very well packaged... cardbox, envelope, antistatic bags ... wow! Fast delivery, faster then I expected. Excellent service! Will buy again!

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  • Russia

    all ok. chips, package, speed of delivery.
    chips for repair two esc... success.
    thanks.

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  • 절차1:제품

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