DRV8825 Stepper Motor Drive บอร์ดขับมอเตอร์ DRV8825 - PCB สีม่วง with Heat Sink

DRV8825 Stepper motor drive บอร์ดขับมอเตอร์ DRV8825

DRV8825 สำหรับขับ stepper motor ใช้ไอซี DRV8825 ขับกระแสสูงสุดได้ 2.5A ใช้ไฟเลี้ยง 3.3V - 5V ปิดระบบเมื่ออุณหภูมิเกิน หรือโวลต์ต่ำกว่า มีวงจรป้องกัน เอาต์พุตช็อตกับกราวน์

Introduction 

The DRV8825 stepper motor driver carrier board TI DRV8825 micro bipolar stepper motor drive is a breakthrough. The module has a pinout and interface with our A4988 stepper motor driver carrier is almost the same, so it can be used as a better performance of the pull-down menu board replacement in many applications. DRV8825 features an adjustable current limit, overcurrent and overtemperature protection, six micro-resolution (down 1/32-step). It uses 8.2 - 45 V, can provide up to about 1.5 per phase no heat sink or forced air flow (rated up to 2.2 per volume sufficient additional cooling).
 
DRV8825 Product Features
 
1. simple steps and direction control interface
2. six different steps resolutions: full step, half step, 1/4-step1/8-step1/16-step, 1/32-step
3. CAN interface directly with 3.3 V and 5 V systems
4. Over-temperature thermal shutdown, overcurrent shutdown, undervoltage lockout
5. short to ground short circuit load protection
6. 4 Layer 2 oz copper PCB, in order to improve heat dissipation
7. exposed solder ground below the bottom of the driver IC on the printed circuit board pad
8. module size, pin and interface matching A4988 stepper motor driver operators in many ways
9. adjustable current control lets you set a potentiometer, which lets you use the stepper motor's rated voltage or more, in order to achieve a higher rate of maximum output current step
10. Intelligent chopping control automatically selects the correct current decay mode (fast decay or slow decay)
11. Maximum 45 V supply voltage
12. built-in voltage regulator (the need for any external logic supply voltage)

ตัวอย่างโคด DRV8825 stepper motor drive บอร์ดขับมอเตอร์ DRV8825 สำหรับ Arduino

/////////////////////////////////////////////////////////////////////////////////////////////////////////////

#define EN 8
#define X_DIR 5
#define Y_DIR 6
#define Z_DIR 7
#define X_STP 2
#define Y_STP 3
#define Z_STP 4

void step (boolean dir, byte dirPin, byte stepperPin, int steps)

{

digitalWrite (dirPin, dir);

delay (50);

for (int i = 0; i <steps; i++)

{

digitalWrite (stepperPin, HIGH);

delayMicroseconds (800);

digitalWrite (stepperPin, LOW);

delayMicroseconds (800);

}

}

void setup () // The stepper motor 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);

}

void loop ()

{

step (false, X_DIR, X_STP, 200); // X axis motor reverse 1 ring, the 200 step is a circle. 

step (false, Y_DIR, Y_STP, 200); // y axis motor reverse 1 ring, the 200 step is a circle. 

step (false, Z_DIR, Z_STP, 200); // z axis motor reverse 1 ring, the 200 step is a circle. 

delay (1000);

//step (true, X_DIR, X_STP, 200); // X axis motor forward 1 laps, the 200 step is a circle. 

//step (true, Y_DIR, Y_STP, 200); // y axis motor forward 1 laps, the 200 step is a circle. 

//step (true, Z_DIR, Z_STP, 200); // z axis motor forward 1 laps, the 200 step is a circle. 

//delay (1000); 

}

/////////////////////////////////////////////////////////////////////////////////////////////////////////////

ข้อมูลเพิ่มเติม DRV8825 stepper motor drive บอร์ดขับมอเตอร์ DRV8825

• ข้อมูล DataSheet DRV8825