How Do I Get My Piglow To Work

After following the steps on this page https://github.com/Boeeerb/PiGlow. I did everything correctly and when i try to run the test.py file it says this. Traceback (most recent ca

Solution 1:

When I had a similar problem, it was because I hadn't enabled i2c on my raspberry pi.

These lines are directly from the README file in the piglow examples available from pimoroni, but they got everything working:

========== README.md =================== Enable the i2c driver modules by editing the modules config file:

sudo nano /etc/modules

Then either add or ensure the following lines are at the end of the file:

i2c-dev
i2c-bcm2708

You may also need to ensure the driver modules are not blacklisted by editing the blacklist config file:

sudo nano /etc/modprobe.d/raspi-blacklist.conf

Ensure that if the following two lines exist in that config file that you comment them out by adding a # sign at the start of the line. So:

blacklist spi-bcm2708
blacklist i2c-bcm2708

...should become...

# blacklist spi-bcm2708# blacklist i2c-bcm2708

Then we install the i2c libraries and Python support:

sudo apt-get install python-smbus

Then reboot your Pi!

========== README.md ===================

Hope that helps!