If you can get Serial Monitor to find it on COM5 then it's COM5.
Using the Say It GUI Software
With the Say It GUI software for your PC and your BASIC Stamp 2 development board, you can test the
Say It module and train it to recognize your custom commands. During training, the BASIC Stamp 2
handles the Say It module-to-PC communication through the provided PBASIC “bridge” program. Once
your you have defined and tested your commands, the GUI software will generate a new PBASIC
template program ready for you to add the actions to take when your voice commands are received.
Follow the steps below to connect to the Say It module via the GUI software. This example assumes you
are using a Board of Education with BASIC Stamp 2, and you have previously installed the BASIC Stamp
Editor and tested the programming connection.