RaspberryPi Pico

1. Preparation

Connect the motor drive board and Raspberry Pi Pico according to the wiring diagram, connect the battery to the power input interface on motor drive module.

Note: The motor interface wire sequence of the dual motor drive board should correspond to the motor pin! Otherwise, the motor drive plate will be damaged.

Note: The motor interface wire sequence of the dual motor drive board.

2. Code

​x
import utime  #Import Library
from machine import Pin, PWM 
AIN1 = PWM(Pin(12))  #Set pin
AIN2 = PWM(Pin(13))
BIN1 = PWM(Pin(14))
BIN2 = PWM(Pin(15))
AIN1.freq(500)#Set AIN1 frequency
AIN2.freq(500)#Set frequency
BIN1.freq(500)#Set frequency
BIN2.freq(500)#Set frequency
#Set duty cycle PWM_PulseWidth[i]/65535(i=0~4)：100%,75%,50%,25%,0%
#PWM_PulseWidth= [65535,49151,32767,16383,0]
def forward(i):  
    AIN1.duty_u16(i)#The motor rotates according to the set duty ratio
    AIN2.duty_u16(0)
    BIN1.duty_u16(i)
    BIN2.duty_u16(0)
def stop():  #Motor stop
    AIN1.duty_u16(0)
    AIN2.duty_u16(0)
    BIN1.duty_u16(0)
    BIN2.duty_u16(0)
def test(): #Test function, set the duty cycle to 49151, that is, 75%. Customers can set it according to their needs
    forward(49151)
    utime.sleep(4)
    stop()

test()#Run the test program, and the drive motor stops after 4s

3. Experimental result

Download the program to Raspberry Pi Pico. The motor starts to rotate for 4s, and then stops rotating.