Chapter 10 Application Programmer’s Interface
10-4 ER1 User Guide
Using the Telnet Connection
Now you can type commands to the ER1 API and see what you are typing.
1. Make sure you are connected by hitting the Enter key once. You should see the word:
OK
appear on the next line.
2. You can now type just about anything and it will show you a list of valid commands.
If you have set a password using the Remote Control tab, the only valid command
initially is
login. Type:
login <password>
where <password> is the correct password (case sensitive) followed by the Enter key.
3. If you see
OK, you are logged in and can begin issuing commands to the robot from the
remote client.
4. Also, at this point, you will see a dialog box on the robot pop up, preventing any
interaction with the robot's GUI until the API connection is closed, either by you or by
telnet.
5. Test out your setup by typing the following, then pressing ENTER:
play phrase "hello"
The robot should speak the word hello.
6. If you type an incorrect or incomplete command, you will be prompted with a list of
correct commands. For example:
?
Error: '?(*)', Expected 'clear', 'events', 'input', 'move', 'output',
'play', 'sense', 'set', or 'stop'.
set
Error: 'set(*)', Expected 'voice', 'linear velocity' (or 'v'),
'angular velocity' (or 'w'), 'power stopped', 'power moving', 'collision detection', 'obstacle
avoidance', 'confidence threshold', 'color tolerance', or 'color percentage'.
move
Error: 'move(*)', Expected 'rotate toward', 'drive toward', 'x', 'y', or a distance.
7. To quit telnet, either click on the close button at the top right, or (XP version) press:
Press Ctrl+]
Type quit
Press Enter.
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