GrovePi no longer detected after last update

Archives GrovePi
1

I’ve been using GrovePi for about a month.
Worked fine in conjunction with relays, temp sensors, etc.
Last week i ran a “sudo apt-get update” “sudo apt-get upgrade”.
After the update, no matter what script i’m trying to run i get this:

pi@raspberrypi ~ $ sudo python temp.py
Traceback (most recent call last):
File “temp.py”, line 2, in <module>
import grovepi
File “build/bdist.linux-armv6l/egg/grovepi.py”, line 22, in <module>
IOError: [Errno 2] No such file or directory

The image i was using was the NOOBS one with the GrovePi libraries installed. I’ve tried reinstalling from scratch, same result.

Next i’ve tried with the Dexterindustries image, if i leave it as it comes, everything works fine. If i update, i get the same issue.

If, after updating, i run i2cdetect -y 1, i get:

Error: Could not open file /dev/i2c-1’ or/dev/i2c/1’: No such file or directory

Any idea on how i could fix this?

2

Hey,
Looks like the update that you are doing somehow disables the I2C. Can you run the setup script here: https://github.com/DexterInd/GrovePi/blob/master/Script/install.sh. First make it executable: sudo chmod +x install.sh then run it ./install.sh.

Let us know if this helps.

-Karan

3

Recent upgrade to kernel 3.18?

You need to add these lines to your /boot/config.txt and reboot:
dtparam=i2c1=on
dtparam=i2c_arm=on

More info:

http://www.raspberrypi.org/forums/viewtopic.php?p=675658#p675658

4

Hey Mike, do we need to update our install script for this then?

5

Hi Karan,

thanks for the quick response.

Tried the script on the existing install, no change.

So i did the following:
1.clean install using the 2014.07.30_Dexter_Industries_wheezy image.

2.ran sudo i2cdetect -y 1 , output ok, grove was there.
3.sudo apt-get update
4.sudo apt-get upgrade (output attached)
5.ran sudo i2cdetect -y 1 , output ok, grove was there.
6.reboot
7.5.ran sudo i2cdetect -y 1 , got the error
Error: Could not open file /dev/i2c-1’ or/dev/i2c/1’: No such file or directory

8.ran the script (output attached)
9.ran sudo i2cdetect -y 1 , got the error
Error: Could not open file /dev/i2c-1’ or/dev/i2c/1’: No such file or directory

6

Worked!
Thanks, mcauser!
Saw your reply after posting the previous one.