LearnigKit for RaspPiPico Part Three

 

#servo_sg90.py

# red-pin40 VBUS brown-GND orange-pin0

from machine import PWM, Pin

import time

servo1 = PWM(Pin(0))

servo1.freq(50)

max_duty = 65025

dig_0 = 0.0725    #0°

dig_90 = 0.12     #90°

while True:

    servo1.duty_u16(int(max_duty*dig_0))

    time.sleep(1)

    servo1.duty_u16(int(max_duty*dig_90))

    time.sleep(1)

#twomotors_mx1508.py

# IN1-pin1 IN2-pin2 IN3-pin3 IN4-pin4

import utime

from machine import Pin

IN1 = Pin(1, Pin.OUT)

IN2 = Pin(2, Pin.OUT)

IN3 = Pin(3, Pin.OUT)

IN4 = Pin(4, Pin.OUT)

while True:

    IN1.high()

    IN2.low()

    IN3.high()

    IN4.low()

    utime.sleep(2)

    

    IN1.high()

    IN2.high()

    IN3.high()

    IN4.high()

    utime.sleep(2)

    

    IN1.low()

    IN2.high()

    IN3.low()

    IN4.high()

    utime.sleep(2)

    

    IN1.low()

    IN2.low()

    IN3.low()

    IN4.low()

    utime.sleep(2)

stepper_lu2003.py

#IN1-pin1 IN2-pin2 IN3-pin3 IN4-pin4

from machine import Pin

from time import sleep

IN1 = Pin(1,Pin.OUT)

IN2 = Pin(2,Pin.OUT)

IN3 = Pin(3,Pin.OUT)

IN4 = Pin(4,Pin.OUT)

pins = [IN1, IN2, IN3, IN4]

sequence = [[1,0,0,0],[0,1,0,0],[0,0,1,0],[0,0,0,1]]

while True:

    for step in sequence:

        for i in range(len(pins)):

            pins[i].value(step[i])

            sleep(0.001)