QQ

robot mogul

Does a gas sensor module need to be programmed? If so, is there any reference on how to program them?

Leon

Which module?

robot mogul

A propane gas sensor module.

Publison

If you are referring to this module and not the raw sensor:

http://www.parallax.com/StoreSearchResults/tabid/768/txtSearch/propane/List/0/SortField/4/ProductID/593/Default.aspx

There is a Basic Stamp program available on the page under Downloads and Resources to get you started.