One of the main reasons for getting a Chumby was to use it as a display for the various sensors inside and outside the house.

Here are some pictures showing the Chumby displaying graphs from internal monitoring of external temperature and electricity usage (original data from a Wattson device)

(Click for larger)

The chumby is running a channel with a large number of the same widget (image URL) like this:

where each of the widgets is set up to display a .jpg image served of a local webserver, where the images themselves are generated by a Ruby program pulling data from a series of sensors that are a combination of Arduino based sensors, a Wattson device with data read through the USB port using another Ruby program, and last data generated from LWB connected to a LaCrosse weather station.