參考資料：https://blog.csdn.net/baidu_37503452/article/details/121506783

data_str = '0102030405060708090a0b0c0d0e0f'
data_bin = bytes(bytearray.fromhex(data_str))
print(data_str)
print(data_bin)

執行結果如下：

D:\WorkSpace\Code_Space\Arduino_python\day20220328\venv\Scripts\python.exe D:/WorkSpace/Code_Space/Arduino_python/day20220328/demo11.py
0102030405060708090a0b0c0d0e0f
b
 
'\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f'

Process finished with exit code 0

例項程式碼1：

from time import sleep
import serial

# 獲取充電盒軟體版本指令：EF 02 31 22

send_list = []

d1 = 0xef
send_list.append(d1)

d2 = 0x02
send_list.append(d2)

d3 = 0x31
send_list.append(d3)

d4 = 0x22
send_list.append(d4)

input_s 
 
= bytes(send_list)
print(input_s)



serialPort = "COM28"  # 串列埠
baudRate = 115200  # 波特率
ser = serial.Serial(serialPort, baudRate, timeout=1)
print("引數設定：串列埠=%s ，波特率=%d" % (serialPort, baudRate))

print("====休眠5秒=======")
sleep(5)
# 傳送指令
ser.write(input_s)

sleep(1)
print("傳送指令後的返回結果")
num = ser.inWaiting()
 
if num > 0:
    data = ser.read(num)
    num = len(data)
    # hex顯示
    out_s = ''
    for i in range(0, len(data)):
        out_s = out_s + '{:02X}'.format(data[i]) + ' '

    print(f"返回結果為：{out_s}。")


ser.close()
print("end")

例項程式碼2：

from time import sleep
import serial

# cmd_str = 'EF023223'        # 獲取充電盒當前溫度
cmd_str = 'EF023122'        # 獲取充電盒軟體版本
# cmd_str = 'EF023021'        # 獲取充電盒硬體版本
# cmd_str = 'EF02A697'        # 獲取充電盒PCBA SN號
# cmd_str = 'EF023324'        # 獲取充電盒韌體FW_Checksum
# cmd_str = ' EF02B2A3'        # 獲取充電盒機身鐳雕碼編號



input_s = bytes(bytearray.fromhex(cmd_str))
print(input_s)




serialPort = "COM28"  # 串列埠
baudRate = 115200  # 波特率
ser = serial.Serial(serialPort, baudRate, timeout=1)
print("引數設定：串列埠=%s ，波特率=%d" % (serialPort, baudRate))

print("====休眠5秒=======")
sleep(5)
# 傳送指令
ser.write(input_s)

sleep(1)
print("傳送指令後的返回結果")
num = ser.inWaiting()
if num > 0:
    data = ser.read(num)
    num = len(data)
    # hex顯示
    out_s = ''
    for i in range(0, len(data)):
        out_s = out_s + '{:02X}'.format(data[i]) + ' '

    print(f"返回結果為：{out_s}。")
    print(type(out_s))


ser.close()
print("end")