Ramji Patel
Published © CC BY-NC

Raspberry Pi Pico and L298N Motor Driver

Control motors With Raspberry pi pico, L298N motor Driver and MicroPython.

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Raspberry Pi Pico and L298N Motor Driver

Things used in this project

Hardware components

Raspberry Pi Pico
Raspberry Pi Pico
×1
Raspberry Pi Pico USB Cable
Raspberry Pi Pico USB Cable
×1
SparkFun Full-Bridge Motor Driver Breakout - L298N
SparkFun Full-Bridge Motor Driver Breakout - L298N
×1
Solderless Breadboard Full Size
Solderless Breadboard Full Size
×1
Maker Essentials - Mini Breadboards & Jumper Jerky
Pimoroni Maker Essentials - Mini Breadboards & Jumper Jerky
×1
DC Motor, 12 V
DC Motor, 12 V
×1
Rechargeable Battery, 12 V
Rechargeable Battery, 12 V
×1
Alligator Clips
Alligator Clips
×1

Software apps and online services

Thonny

Hand tools and fabrication machines

Soldering Station, 110 V
Soldering Station, 110 V
Solder Flux, Soldering
Solder Flux, Soldering
Solder Wire, Lead Free
Solder Wire, Lead Free

Story

Read more

Schematics

Raspberry Pi Pico and L298N Schematic1.pdf

Raspberry Pi Pico and L298N Schematic

Code

Example1.py

MicroPython
"""This micropython program makes the motor1 
move in forward and backward directions."""

from machine import Pin, PWM
from L298N_motor import L298N
import time

ENA = PWM(Pin(0))        
IN1 = Pin(1, Pin.OUT)         
IN2 = Pin(2, Pin.OUT)

motor1 = L298N(ENA, IN1, IN2)     #create a motor1 object
motor1.setSpeed(25000)            #set the speed of motor1. Speed value varies from 25000 to 65534

while True:
    motor1.forward()      #run motor1 forward
    time.sleep(5)         #wait for 5 seconds
    motor1.backward()     #run motor1 backward
    time.sleep(5)         #run motor2 backward

Example2.py

MicroPython
 """This micropython program makes the motor1 and motor2
move in forward and backward directions."""

from machine import Pin, PWM
from L298N_motor import L298N
import time

ENA = PWM(Pin(0))        
IN1 = Pin(1, Pin.OUT)         
IN2 = Pin(2, Pin.OUT)
IN3 = Pin(3, Pin.OUT)
IN4 = Pin(4, Pin.OUT)
ENB = PWM(Pin(5))

motor1 = L298N(ENA, IN1, IN2)     #create a motor1 object
motor2 = L298N(ENB, IN3, IN4)     #create a motor2 object

motor1.setSpeed(30000)            #set the speed of motor1. Speed value varies from 25000 to 65534
motor2.setSpeed(25000)            #set the speed of motor2. Speed value varies from 25000 to 65534

while True:
    motor1.forward()      #run motor1 forward
    motor2.forward()      #run motor2 forward
    time.sleep(5)         #wait for 5 seconds
    motor1.backward()     #run motor1 backward
    motor2.backward()     #run motor1 backward
    time.sleep(5)         #run motor2 backward

Example3.py

MicroPython
"""This micropython program makes the motor1 
move in forward and backward directions with
increasing speed."""

from machine import Pin, PWM
from L298N_motor import L298N
import time

ENA = PWM(Pin(0))        
IN1 = Pin(1, Pin.OUT)         
IN2 = Pin(2, Pin.OUT)

motor1 = L298N(ENA, IN1, IN2)     #create a motor1 object
motor1.setSpeed(25000)            #set the speed of motor1. Speed value varies from 25000 to 65534

while True:
    for speed in range(25000, 65000, 100):
        motor1.setSpeed(speed)
        motor1.forward()
        time.sleep(0.1)
    motor1.stop()
    for speed in range(25000, 65000, 100):
        motor1.setSpeed(speed)
        motor1.backward()
        time.sleep(0.1)
    motor1.stop()

Example4.py

MicroPython
"""This micropython program makes the motor1 
move in forward and backward directions with
increasing and and decreasing speed in both
directions."""

from machine import Pin, PWM
from L298N_motor import L298N
import time

ENA = PWM(Pin(0))        
IN1 = Pin(1, Pin.OUT)         
IN2 = Pin(2, Pin.OUT)

motor1 = L298N(ENA, IN1, IN2)     #create a motor1 object
motor1.setSpeed(25000)            #set the speed of motor1. Speed value varies from 25000 to 65534

while True:
    for speed in range(25000, 65000, 100):
        motor1.setSpeed(speed)
        motor1.forward()
        time.sleep(0.1)
    for speed in range(65000, 25000, -100):
        motor1.setSpeed(speed)
        motor1.forward()
        time.sleep(0.1)
    motor1.stop()
    for speed in range(25000, 65000, 100):
        motor1.setSpeed(speed)
        motor1.backward()
        time.sleep(0.1)
    for speed in range(65000, 25000, -100):
        motor1.setSpeed(speed)
        motor1.backward()
        time.sleep(0.1)
    motor1.stop()

Example5.py

MicroPython
''' This is a micropython program to control the speed
and direction of the motor using seraial communication'''

from machine import Pin, PWM, UART
from L298N_motor import L298N
import time

uart = UART(1, 9600)
uart.init(9600, bits = 8, parity = None,stop = 1, rx = Pin(9), tx = Pin(8))

ENA = PWM(Pin(0))
IN1 = Pin(1, Pin.OUT)
IN2 = Pin(2, Pin.OUT)

motor1 = L298N(ENA, IN1, IN2)
motor1.setSpeed(30000)

while True:
    if uart.any() > 0:
        data = uart.read()
        print(data)
        if "FORWARD" in data:
            motor1.run("FORWARD")
        elif "BACKWARD" in data:
            motor1.run("BACKWARD")
        elif "STOP" in data:
            motor1.run("STOP")
        elif "SPEED" in data:
            uart.write(str(motor1.getSpeed()))
        elif "DIRECTION" in data:
            uart.write(str(motor1.getDirection()))

Example6.py

MicroPython
''' This is a micropython program to control the
speed of motor1 using a potentiometer'''

from machine import Pin, PWM, ADC
from L298N_motor import L298N
import time

potentiometer = ADC(26)
ENA = PWM(Pin(0))        
IN1 = Pin(1, Pin.OUT)         
IN2 = Pin(2, Pin.OUT)

motor1 = L298N(ENA, IN1, IN2)

while True:
    reading = potentiometer.read_u16()
    motor1.setSpeed(int(reading))
    motor1.forward()
    time.sleep(0.1)

Credits

Ramji Patel

Ramji Patel

26 projects • 18 followers
Myself Ramji Patel. I am an Engineering student and pursuing my B-Tech from Institute of engineering and rural Technology Prayagraj, India.

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