What is the difference between the BASIC Stamp Rev. D (sometimes just called “BASIC Stamp”) and the BASIC Stamp I?
The original version of the BASIC Stamp I was simply called, “BASIC Stamp”. That name was sufficient until the arrival of the new physical package type, as well as the second version, the BASIC Stamp II. At that point, the original version was split into to package types, the Rev. D and the BS1-IC; both of which are considered to be the “BASIC Stamp I”. The “BASIC Stamp II” is known as the BS2-IC. Today, the term “BASIC Stamp” is too generic and really could be applied to any one of the units in the product line. Long-time Parallax customers, however, still frequently refer to the BASIC Stamp I as the BASIC Stamp, thus, in many cases, there is no difference between the term BASIC Stamp and the BASIC Stamp I. To keep things clear, we prefer the names: “BASIC Stamp I”, “BASIC Stamp II”, or more specifically, “Rev. D”, “BS1-IC” and “BS2-IC” and try to use the term “BASIC Stamp” to refer to the entire line of microcontrollers.
