Jeremy Morgan has written an excellent, comprehensive tutorial on reading data from a waterproof 1-wire temperature sensor and then outputting it to screen. He has then expanded on this to push the data up to online service Firebase. Read the tutorial here.
We use an identical method to grab data from a temperature sensor with the second CamJam EduKit. So, if you’d like to get into reading sensors, take a look at the kit, available from The Pi Hut, here.