MicroPython编写的ESP8266驱动步进电机

from machine import Pin
import time

# Define the pins for the stepper motor
coil_A_1_pin = 14
coil_A_2_pin = 12
coil_B_1_pin = 13
coil_B_2_pin = 15

# Define the sequence for the stepper motor
StepCount = 8
Seq = range(0, StepCount)
Seq[0] = [1,0,0,0]
Seq[1] = [1,1,0,0]
Seq[2] = [0,1,0,0]
Seq[3] = [0,1,1,0]
Seq[4] = [0,0,1,0]
Seq[5] = [0,0,1,1]
Seq[6] = [0,0,0,1]
Seq[7] = [1,0,0,1]

# Initialize the pins as output pins
for pin in [coil_A_1_pin, coil_A_2_pin, coil_B_1_pin, coil_B_2_pin]:
    p = Pin(pin, Pin.OUT)
    p.value(0)

# Function to move the stepper motor
def move_stepper(steps, direction, delay):
    for i in range(steps):
        for step in range(StepCount):
            for pin in range(4):
                p = Pin(eval('coil_A_{}_pin'.format(pin+1)), Pin.OUT)
                p.value(Seq[step][pin])
                p = Pin(eval('coil_B_{}_pin'.format(pin+1)), Pin.OUT)
                p.value(Seq[step][pin])
            time.sleep_ms(delay)
        if direction == 'clockwise':
            Seq.insert(0, Seq.pop())
        elif direction == 'anticlockwise':
            Seq.append(Seq.pop(0))

# Move the stepper motor 200 steps clockwise with a delay of 5 milliseconds
move_stepper(200, 'clockwise', 5)

该示例程序首先定义了连接到ESP8266的步进电机的引脚。然后，它定义了步进电机的顺序，以便能够控制其移动。

接下来，程序将这些引脚初始化为输出引脚，并定义了一个函数，该函数接受步数、方向和延迟作为参数，并将电机移动到指定的位置。

最后，该程序将步进电机以5毫秒的延迟顺时针旋转200步。

请注意，这只是一个示例程序，具体的引脚和顺序可能会因电机型号而有所不同。您需要根据您的具体情况进行调整。