I've bought the camjam edukit 2 for my pi which includes the DS18B20 temperature sensor. However, after going over the instructions 20 times, rebuilding it a same amount and searching online, I still haven't managed to get it to show up in the list of devices. This folder remains empty.
I have added the line in boot/config.txt with no success.
I'm beginning to think the sensor is broken. If anyone has an idea about what I'm doing wrong, I'd be extremely happy to find out!
Running a pi 2 with raspbian
Updated with answers to the questions in comment I plan on using it on a project as well :-)
I added this line to the config file followed by a reboot.
Then I tried with this one:
Neither did the trick. The folder that remains empty is this one, added the code before it as well to be complete:
sudo modprobe w1-gpio sudo modprobe w1-therm cd /sys/bus/w1/devices ls