josiane_serial_test.py

import serial
import time

# Instantiate serial connection to the HD Ranger
hd_ranger_serial_port_id = '/dev/ttyUSB0'  # 'COM5'
ser = serial.Serial(hd_ranger_serial_port_id, 115200)  # open serial port
print(ser.name)         # check which port was really used

# Get XON from HD Ranger
print(ser.read(1))  # Pour lire le XON

# Format BATTERY command
cmd = "*?BATTERY"
cr = hex(int('0D', base=16))
formatted_command = cmd + cr

# Execute BATTERY command
ser.write(formatted_command.encode())     # write a string

# Read BATTERY command Response
time.sleep(1)
print(ser.read(1))  # Pour lire le XOFF

time.sleep(1)
print(ser.read(1))  # Pour lire le ACK(06) ou NAK(15)

time.sleep(1)
print(ser.read())  # Pour lire la reponse

ser.close()