used to display tidal waves, solar radiation, power consumption,
number of visitors at an exhibition, noise levels near an airport,
temperature on your favorite holiday location, temperature in the
-fridge and whatever you imagination can come up with.
+fridge and whatever your imagination can come up with.
You only need a sensor to measure the data and be able to feed the
numbers into RRDtool. RRDtool then lets you create a database, store