Check out MagPi Issue 59
It contains an article about someone replacing their 'normal computer' with a Pi, what limitations it had/what it did well.
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from tkinter import ttk
Yes. You can connect multiple ds18b20 sensors to the same GPIO. They will appear on the Pi with different addresses.Is it possible to connect many ds18b20 sensors? As there is only 1-wire GPIO as far I know.