# Open the port and check the power status
import serial
import time
class PowerSupplyController:
 def __init__(self, port , baudrate=9600, timeout=1):
 self.port = port
 self.baudrate = baudrate
 self.timeout = timeout
 self.serial_conn = None
 def open_connection(self):
 """Open the serial port"""
 self.serial_conn = serial.Serial(port=self.port, baudrate=self.baudrate, timeout=self.timeout)
 print(f"Connected to {self.port} at {self.baudrate} baudrate.")
 def close_connection(self):
 """Close the serial port"""
 if self.serial_conn and self.serial_conn.is_open:
 self.serial_conn.close()
 print("Connection closed.")
 def send_command(self, command):
 """Send a command"""
 if self.serial_conn and self.serial_conn.is_open:
 self.serial_conn.write(command.encode("utf-8"))
 time.sleep(0.1) # Wait briefly for command processing
 response = self.serial_conn.readline().decode().strip()
 print(f"Response: {response}")
 return response
 else:
 print("Connection is not open.")
 return None
 def status(self):
 """Check the power status"""
 command = "#1 STS\r\n" #Change the unit number according to the settings.
 self.send_command(command)
 print(f"Command{command}")
# Main program
if __name__ == "__main__":
 # Serial port settings (Change the port name according to the environment)
 port_name = "COM3" # For Windows
 # port_name = "/dev/ttyUSB0" # For Linux/Mac
 # Create an instance and open the port
 power_controller = PowerSupplyController(port=port_name)
 power_controller.open_connection()
 # Send status check command
 power_controller.status()
 # Set remote mode to OFF
 power_controller.close_connection()