L298N Motor Driver

L298N Motor Driver can control up to 2 DC motor and can spawn a DC Motor object

Controlling a Motor

The connection diagram for L298N Motor Driver is shown below:

L298N	Raspberry Pi	DC Motor	Battery
ENA	GPIO14
IN1	GPIO15
IN2	GPIO18
Mot A		Any
Mot A		Any
VCC			Bat+
GND			Bat-

You can use other external supply beside a battery

import raspidevkit

machine = raspidevkit.Machine()
pins = (12, 13, 14)
l298n = machine.attach_l298n(pins)
motor = l298n.attach_motor()
motor.run()
time.sleep(5)
motor.stop()

Setting Motor Speed

This is only possible if you’ve activated the pwm mode of the motor when spawning and then motor speed can be set by using the set_speed method passing in the speed you want.

import raspidevkit

machine = raspidevkit.Machine()
pins = (14, 15, 18)
l298n = machine.attach_l298n(pins)
motor = l298n.attach_motor(is_pwm=True)
motor.run()
motor.set_speed(75)
time.sleep(5)
motor.stop()

Calling the set_speed method when the motor’s PWM mode is not enabled will throw an exception

Note: that the max is 100 and min is 0

Dual Motor Setting

Adding additional motor is easy and can be simply done by adding additional pins to be used.

Below is a sample diagram for dual motor:

L298N	Raspberry Pi	DC Motor	Battery
ENA	GPIO14
IN1	GPIO15
IN2	GPIO18
ENB	GPIO25
IN3	GPIO24
IN4	GPIO23
Mot A		Any
Mot A		Any
Mot B		Any
Mot B		Any
VCC			Bat+
GND			Bat-

import raspidevkit

machine = raspidevkit.Machine()
pins = pins = (14, 15, 18, 25, 24, 23)
l298n = machine.attach_l298n(pins)
motor1 = l298n.attach_motor(is_pwm=True)
motor2 = l298n.attach_motor()
motor1.run()
motor1.set_speed(75)
motor2.run()
time.sleep(5)
motor1.stop()
motor2.stop()

NOTE: Adding additional motor when the pins used by the driver is only 3 (ENA, IN1, IN2) will throw an exception as this is only configured to support 1 motor. To support two motors pass a tuple with 6 pins (ENA, IN1, IN2, ENB, IN3, IN4)