I work at a park and in our visitor center and lighthouse museum there are boards that contain information for visitors like the temperature, water temperature, temperature at the top of a lighthouse, Tide and such.
I was looking upgrade the inefficient dry erase marker boards with newer more futuristic displays that would update themselves automatically. Temperature information is easy to gather from temperature sensors, I have never done that before with the arduino but I have read on how to do it and it seems easy enough. The problem I have is gathering water temperature readings which are available on the internet from a buoy out at sea (Running a cable to the water is not possible). What are some of the ways that I can try to read information off of a webpage and have that sent to an arduino to move a dial on a analog thermometer?
Also Because the buildings where these displays are to be setup are from 1888 and 1893 I was thinking instead of a modern looking LED or LCD display to have a analog dial like a clock, barometer or pressure gauge and have it driven by a stepper or servo motor.