stepper motor module

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El_person
Posts: 4
Joined: Fri Aug 06, 2021 2:24 pm
Location: cairo

stepper motor module

Post by El_person » Thu Aug 12, 2021 12:24 pm

hello everyone , am currently working on a stepper motor l298n control module
however for some reason it is not working , the tables i copied from the sequence had
A B A' B'

#p16 orange A'
#p17 brown A
#p18 red B
#p19 yellow B'

, and that is the sequence i used as an input , i also tried changing the delay value , and non of these worked am currently kinda lost not knowing where is the problem am using a wipy 3 as my microcontroller , a l298n driver and a st4118L 1804-a nema 17 stepper


Code: Select all

 from machine import Pin
import time


# define code initial values (pin1,oin2,pin3,pin4,delay)
def set_stepper(w1,w2,w3,w4,d) :
    global delay
    delay=d
    a=Pin(w1, mode = Pin.OUT)
    b=Pin(w2, mode = Pin.OUT)
    c=Pin(w3, mode = Pin.OUT)
    d=Pin(w4, mode = Pin.OUT)
    global pins
    pins=[a,b,c,d]


def sequence(*pattern):
    for x in range(4):
        pins[x].value(pattern[x])
        time.sleep(delay)

def step(steps) :
    fullsteps = ((0,1,0,1), (0,1,1,0), (1,0,1,0), (1,0,0,1))
    for i in range(0, steps):
        #looping the the whole sequence once for each step
        for pattern in fullsteps:
            sequence(*pattern)
def h_step(steps) :
    halfsteps = ((0,1,0,1), (0,1,0,0), (0,1,1,0), (0,0,1,0),(1,0,1,0), (1,0,0,0), (1,0,0,1), (0,0,0,1))
    #looping the the whole sequence once for each half step
    for i in range(0, steps/4 ):
        for pattern in halfsteps:
            sequence(*pattern)


#def distance() :

# define the number of steps needed to complete the whole axe
#def callibrate(length,end_pin) :


#def dis_fix() :

#p16 orange A' 
#p17 brown A
#p18 red B
#p19 yellow B'


set_stepper("P17","P18","P16","P19",0.05)
step( 800 )
   

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