MySQL 问题 - 从 python 获取的数据未插入数据库

Question

在这里，我们尝试使用 Arduino Uno 创建一个室温监视器，其中 Arduino 的温度和湿度被带入 Python 程序，通过它我们连接到数据库并在表格中显示数据，但在拆分数据之后它只是抛出无法插入数据错误。

桌子：

湿度温度

56.00 27.00

import serial

import mysql.connector

import time



device = 'COM4' #this will have to be changed to the serial that is 
being used
try:
   print ("Trying...",device)
   arduino = serial.Serial(device, 9600) 
except: 
   print ("Failed to connect on",device )   

while True:
 try:
  time.sleep(2)
  data = arduino.readline()  //read the data from the arduino
  a = data.decode() 
  print (a)
  arr = a.split(" ") //split the data by the tab
  h = arr[0]
  t = arr[1]

  #Here we are going to insert the data into the Database
  try:
    dbConn = mysql.connector.connect(host="localhost",user="user",password="user",database= "db1" ) or die ("could not connect to database")
    cursor = dbConn.cursor()


    query = ("""INSERT INTO data (Humidity,Temperature) VALUES (%s,%s)""",(h,t))

  
    cursor.execute(query)
    dbConn.commit() #commit the insert
  
    print ("inserted successfully")
    cursor.close()  #close the cursor
  except mysql.connector.Error as error:
    print ("failed to insert data")
  #finally:
    #dbConn.close()  #close just incase it failed
except:
  print ("error")

/////////////////////////////////////////////// /////////////////// 我们得到的错误是：

尝试... COM4 54.00 26.70

插入数据失败 54.00 26.70

插入数据失败 54.00 26.70

插入数据失败