What

This is an arduino program intended to monitor the environment in a green house. It has a simple command driven interface

Commands

Commands are single letter strings, in some cases followed by numbers. All end with a <cr>. All envoke responses all of which also end with <cr>

Command Purpose	Send	Response	Comment
Get version of arduino software	v	GreenHouse Monitor v3 2017 01 24.01	Of course exact string changes with version. This string is used by the SmartTerminal to verify the arduino connection.
Aquire Data	a	ok	Data is held in arduino memory, access with further commands.
Get the Temperature	t	33.0 60.0	In this version there are 2 sensors.