Connect the four blue ground busses together using black wire. Connecting the Serial Cable to the Stamp 2. Install the 10 pin wire-wrap header and the Basic Stamp on the breadboard. Remember to bend the leads on the wire-wrap header such that the two rows of 5 pins are on different sides of the channel. Note that the terminal numbering on the 10 - pin header and the Basic Stamp are different.
Integrated circuits are descendants of vacuum tubes where the numbering was in a circular pattern.
Thus, the Basic Stamp terminal numbering is in a counter clock wise manner. However, on the 10-pin header, the terminals are assigned much as we read. An arrow on the header identifies terminal 1. Note that ground is connected to terminals 4 and 23 of the Basic Stamp and terminal 5 of the 10-pin header. Black wire is suggested.