Error using Moisture Sensor v1.4

I am using a Raspberry Pi 3 with a GrovePi+. The code I am using is given below:

[code]#!/usr/bin/env python

GrovePi Example for using the Grove Moisture Sensor (http://www.seeedstudio.com/wiki/Grove_-_Moisture_sensor)

The GrovePi connects the Raspberry Pi and Grove sensors. You can learn more about GrovePi here: http://www.dexterindustries.com/GrovePi

Have a question about this example? Ask on the forums here: http://forum.dexterindustries.com/c/grovepi

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License

The MIT License (MIT)
GrovePi for the Raspberry Pi: an open source platform for connecting Grove Sensors to the Raspberry Pi.
Copyright © 2017 Dexter Industries
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the “Software”), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
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NOTE:

The wiki suggests the following sensor values:

Min Typ Max Condition

0 0 0 sensor in open air

0 20 300 sensor in dry soil

300 580 700 sensor in humid soil

700 940 950 sensor in water

Sensor values observer:

Val Condition

0 sensor in open air

18 sensor in dry soil

425 sensor in humid soil

690 sensor in water

import time
import grovepi

Connect the Grove Moisture Sensor to analog port A0

SIG,NC,VCC,GND

sensor = 0

while True:
try:
print(grovepi.analogRead(sensor))
time.sleep(.5)

except KeyboardInterrupt:
    break
except IOError:
    print ("Error")<e>[/code]</e></CODE>

The error message is given below:

</s>Traceback (most recent call last): File "/home/pi/Dexter/GrovePi/Software/Python/grove_moisture_sensor.py", line 61, in <module> print(grovepi.analogRead(sensor)) File "/home/pi/Dexter/GrovePi/Software/Python/grovepi.py", line 227, in analogRead return number[1] * 256 + number[2] TypeError: 'int' object is not subscriptable<e>

Hi,



I used the latest raspberry image(2018.6.27). then i run below command to install grovepi.



sudo curl -kL dexterindustries.com/update_grovepi | bash

sudo reboot



at last, i run below commands and it is the output. thanks.

pi@raspberrypi:~/GrovePi/Software/Python $ python grove_moisture_sensor.py



0

1

0

2

0

1

0

0

0

0

38

3

68

82

91

107

119

101

0



Bill

I tried everything you suggested and I now get a different error:

</s>Traceback (most recent call last): File "grove_moisture_sensor.py", line 61, in <module> print(grovepi.analogRead(sensor)) File "/home/pi/Dexter/GrovePi/Software/Python/grovepi.py", line 227, in analogRead return number[1] * 256 + number[2] TypeError: 'int' object has no attribute '__getitem__' <e>

Hi, please try update the firmware and see if the issue is solved. thanks.



<LINK_TEXT text=“https://www.dexterindustries.com/GroveP … -firmware/”>https://www.dexterindustries.com/GrovePi/get-started-with-the-grovepi/updating-firmware/</LINK_TEXT>



Bill