TB6600 Stepper Motor Driver Documentation
The TB6600 is a high-power stepper motor driver designed for driving bipolar stepper motors. It is a popular choice for various applications, including CNC machines, 3D printers, and robotics. This driver features a high current output, adjustable microstepping, and a compact design.
The TB6600 has the following pinout:
| Pin | Function |
| --- | --- |
| VCC | Power supply (recommended 12-24V) |
| GND | Ground |
| ENA | Enable input (active low) |
| DIR | Direction input |
| PUL | Pulse input |
| M0-M2 | Microstep resolution selection |
| RST | Reset input (active low) |
| LED | Status indicator LED |
Here is a basic connection diagram for the TB6600:
```
+-----------+
| TB6600 |
+-----------+
|
|
v
+-----------+ +-----------+ +-----------+
| Stepper | | Power | | Microcon- |
| Motor | | Supply | | troller |
+-----------+ +-----------+ +-----------+
| A+ | | VCC | | DIR |
| A- | | GND | | PUL |
| B+ | | |
| B- | | |
+-----------+ +-----------+
```
### Example 1: Basic Stepper Motor Control using Arduino
In this example, we will demonstrate how to control a bipolar stepper motor using the TB6600 and an Arduino board.
```c++
#define DIR_PIN 2 // Direction pin
#define PUL_PIN 3 // Pulse pin
#define ENA_PIN 4 // Enable pin
void setup() {
pinMode(DIR_PIN, OUTPUT);
pinMode(PUL_PIN, OUTPUT);
pinMode(ENA_PIN, OUTPUT);
digitalWrite(ENA_PIN, HIGH); // Enable the driver
}
void loop() {
digitalWrite(DIR_PIN, HIGH); // Set direction to clockwise
for (int i = 0; i < 100; i++) {
digitalWrite(PUL_PIN, HIGH);
delayMicroseconds(500);
digitalWrite(PUL_PIN, LOW);
delayMicroseconds(500);
}
digitalWrite(DIR_PIN, LOW); // Set direction to counterclockwise
for (int i = 0; i < 100; i++) {
digitalWrite(PUL_PIN, HIGH);
delayMicroseconds(500);
digitalWrite(PUL_PIN, LOW);
delayMicroseconds(500);
}
}
```
### Example 2: Microstepping Control using Raspberry Pi (Python)
In this example, we will demonstrate how to control a bipolar stepper motor using the TB6600 and a Raspberry Pi, with microstepping enabled.
```python
import RPi.GPIO as GPIO
import time
DIR_PIN = 17 # Direction pin
PUL_PIN = 23 # Pulse pin
ENA_PIN = 24 # Enable pin
M0_PIN = 25 # Microstep pin 0
M1_PIN = 8 # Microstep pin 1
M2_PIN = 7 # Microstep pin 2
GPIO.setup(DIR_PIN, GPIO.OUT)
GPIO.setup(PUL_PIN, GPIO.OUT)
GPIO.setup(ENA_PIN, GPIO.OUT)
GPIO.setup(M0_PIN, GPIO.OUT)
GPIO.setup(M1_PIN, GPIO.OUT)
GPIO.setup(M2_PIN, GPIO.OUT)
GPIO.output(ENA_PIN, GPIO.HIGH) # Enable the driver
GPIO.output(M0_PIN, GPIO.LOW) # Set microstepping to 1/16
GPIO.output(M1_PIN, GPIO.HIGH)
GPIO.output(M2_PIN, GPIO.HIGH)
while True:
GPIO.output(DIR_PIN, GPIO.HIGH) # Set direction to clockwise
for i in range(100):
GPIO.output(PUL_PIN, GPIO.HIGH)
time.sleep(0.001)
GPIO.output(PUL_PIN, GPIO.LOW)
time.sleep(0.001)
GPIO.output(DIR_PIN, GPIO.LOW) # Set direction to counterclockwise
for i in range(100):
GPIO.output(PUL_PIN, GPIO.HIGH)
time.sleep(0.001)
GPIO.output(PUL_PIN, GPIO.LOW)
time.sleep(0.001)
```
Make sure to adjust the pin connections and code according to your specific setup.
The TB6600 requires an external power supply for the motor, and the logic voltage (VCC) should be within the motor driver's recommended range.
When using microstepping, adjust the M0-M2 pins to select the desired microstep resolution.
Always check the datasheet and documentation for your specific motor and microcontroller or single-board computer for compatibility and specific usage guidelines.
