Troi Serial Plug-in functionality can be implemented by adding calls to its functions in the Specify Calculation dialog box in FileMaker Pro. Starting with FileMaker 16 you can also use its script steps in the Script Workspace.

Functions reference

Serial_AsciiValueToText
Serial_Close
Serial_Control
Serial_DataWasReceived
Serial_Debug
Serial_GetPortInfo
Serial_GetPortNames
Serial_Open
Serial_Receive
Serial_Reinitialize
Serial_Send
Serial_SetDirectInsert new in v5.5!
Serial_SetDispatchScript
Serial_TextToAsciiValue
Serial_Version
Serial_VersionAutoUpdate

Script step reference

Beep for Serial Data
Close Serial Port
Open Serial Port
Receive Serial Data
Reinitialize Serial Plug-in
Send Serial Data
Set Serial Direct Insert new in v5.5!
Set Serial Trigger Script
Suspend/Resume Serial Port
Trigger Serial Test Script