我在用adcads1115从树莓pi的加速度传感器中提取数据时遇到了一个问题。在

我使用这段代码将数据插入mysql# Author: Tony DiCola

# License: Public Domain

# Import the ADS1x15 module.

import Adafruit_ADS1x15

import MySQLdb

import time

import datetime

# Create an ADS1115 ADC (16-bit) instance.

adc = Adafruit_ADS1x15.ADS1115()

# Or create an ADS1015 ADC (12-bit) instance.

#adc = Adafruit_ADS1x15.ADS1015()

# Note you can change the I2C address from its default (0x48), and/or the I2C

# bus by passing in these optional parameters:

#adc = Adafruit_ADS1x15.ADS1015(address=0x49, busnum=1)

# Choose a gain of 1 for reading voltages from 0 to 4.09V.

# Or pick a different gain to change the range of voltages that are read:

# - 2/3 = +/-6.144V

# - 1 = +/-4.096V

# - 2 = +/-2.048V

# - 4 = +/-1.024V

# - 8 = +/-0.512V

# - 16 = +/-0.256V

# See table 3 in the ADS1015/ADS1115 datasheet for more info on gain.

GAIN = 1

time_sensor = time.time()

# Main loop.

x = [1]*4

y = [2]*4

z = [3]*4

for i in range(4):

x[i] = adc.start_adc(i, gain=GAIN)

y[i] = adc.start_adc(i, gain=GAIN)

z[i] = adc.start_adc(i, gain=GAIN)

# Read the specified ADC channel using the previously set gain value.

# Once continuous ADC conversions are started you can call get_last_result() to

db = MySQLdb.connect("localhost", "root", "raspberry", "sensor_log")

curs=db.cursor()

while True:

try:

curs.execute("""INSERT INTO table_sensor_log(time, koordinatx, koordinaty, koordinatz)

values(%s,%s,%s,%s)""",(time_sensor,x[i],y[i],z[i]))

db.commit()

except:

print "Error"

db.rollback()

time.sleep(1)

db.close()

问题是当我运行该脚本时，接收到的数据是重复的，该脚本只从加速度计传感器的第一个数据中获取数据，然后重复插入。在

这就是我得到的。在

^{pr2}$

我需要传感器的真实数据，如果我使用print，数据会正确显示，但是当我把它插入mysql时，数据会是这样的。在