Laser engraving

1 Functional interface

2.13 set_pwm()

• Function: Set PWM duty cycle
• Parameter description: P：Duty cycle, range: 0-255
• Return value: None

2 Getting Started

from pymycobot.ultraArmP340 import ultraArmP340
import time

#The above should be written at the beginning of the code, meaning to import the project package

# ultraArmP340 class initialization requires two parameters: serial port and baud rate
#   The first is the serial port string, such as:
#       linux： "/dev/ttyUSB0"
#       windows: "COM3"
#   The second is the baud rate:115200
#   For example
#           linux:
#              ua = ultraArmP340("/dev/USB0", 115200)
#           windows:
#              ua = ultraArmP340("COM3", 115200)
#
# Initialize an ultraArmP340 object
# Create object code for Windows version
ua = ultraArmP340("COM3", 115200)
ua.go_zero()

time.sleep(2)

ua.set_pwm(128)