IO Error when trying to get i2c device on Raspberry Pi B+

[cjbuchmann]

I'm having some difficulty connecting to my MCP9808 temperature sensor while using this library.

I had attempted to use the python mcp9808 library https://github.com/adafruit/Adafruit_Python_MCP9808, but kept receiving an IOError from this library. Using the default address specified in that library (https://github.com/adafruit/Adafruit_Python_MCP9808/blob/master/Adafruit_MCP9808/MCP9808.py#L27), I can reproduce these steps in the python console as shown below :

pi@raspberrypi ~ $ python
Python 2.7.3 (default, Mar 18 2014, 05:13:23) 
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import Adafruit_GPIO.I2C as I2C
>>> address=0x18
>>> I2C.get_i2c_device(address)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "build/bdist.linux-armv6l/egg/Adafruit_GPIO/I2C.py", line 66, in get_i2c_device
  File "build/bdist.linux-armv6l/egg/Adafruit_GPIO/I2C.py", line 95, in __init__
IOError: [Errno 2] No such file or directory

My platform info is shown as below :

pi@raspberrypi ~/servos $ python
Python 2.7.3 (default, Mar 18 2014, 05:13:23) 
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import Adafruit_GPIO.Platform as Platform
>>> Platform.platform_detect()
1
>>> Platform.pi_revision()
2
>>> 

my pi version is

Linux 4.1.7+ armv6l GNU/Linux

My hardware setup is shown below :

In my boot/config.txt I have added

dtparam=i2c_arm=on

and enabled I2C via raspi-config.

Is there anything that I'm missing, or could it just be faulty hardware?

[tdicola]

I'm cleaning up old issues and for troubleshooting connection and other issues like this be sure to post in the forums: http://forums.adafruit.com/ That's where you can get the best response--GitHub issues are intended for defects and problems with the code. In general a file not found error indicates the /dev/i2c-* devices don't exist which likely means raspi-config needs to be run to enable the I2C interface.