HP HP 410 User manual

HP StreamSmart 410
User Guide
For use with the HP 39/40gs Graphing Calculators
HP Part Number: NW241-90001
Edition 3, January 2011

Printing History
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Date Edition
October 2008 1
June 2010 2
August 2010 2
January 20113

i
Table of Contents
1 HP Mobile Calculating Laboratory.................................... 1
Types of experiments ...................................................... 1
Additional Application views ........................................... 6
The Statistics application ................................................. 7
Manual conventions ....................................................... 8
Helpful hints .................................................................. 9
2 Streaming Experiments.................................................. 10
Viewing a stream of data .............................................. 12
Select data .................................................................. 17
Export a data set.......................................................... 18
Analyze data............................................................... 19
3 Capturing Data from Events ........................................... 21
Numeric view: the meter mode ...................................... 23
Set up experiment ........................................................ 23
Monitor and select events.............................................. 25
Analyze the data.......................................................... 26
Data logging ............................................................... 26
4 Advanced Topics ........................................................... 27
Sensor setup: manually identify a sensor ......................... 27
Unit setup: manually select units for a sensor.....................28
Calibration.................................................................. 29
Filtering data for display and export............................... 32
Data history................................................................. 34
Oscilloscope mode....................................................... 35
StreamSmart 410 and the virtual calculators.................... 36
Keyboard shortcuts....................................................... 37
Mathematical details: zoom, pan, and trace.................... 38
5 Warranty, Regulatory, and Contact Information ............. 40

HP Mobile Calculating Laboratory 1
1HP Mobile Calculating Laboratory
The HP Mobile Calculating Laboratory (HP MCL) consists of one or more Fourier®
sensors, an HP StreamSmart 410, and an HP 39/40gs graphing calculator with
the StreamSmart Aplet. Investigation and understanding of mathematics and
science concepts are enhanced by the HP Mobile Calculating Laboratory, as it is
designed to simplify the collection and analysis of real-world data.
Types of experiments
The Mobile Laboratory supports a number of different types of experiments, as
shown in the table below.
Table 1-1 Types of experiments
Type Description Example
Stream Displays a live time graph (data
stream) for up to four sensors
simultaneously, at rates up to 5,000
samples per second. See Chapter 2
for details.
Two students each sing a note
one octave apart into separate
microphones; the HP MCL
displays their voice sound waves
live so their wavelengths can be
compared.
Stream/select
events Same as above StreamSmart captures the dampened oscillations of a
vibrating rod. Students select just
the maxima of the oscillations for
further analysis.
Selected events Displays a live meter read-out for up to
four sensors simultaneously; you can
add a set of readings to your data set
at any time. See Chapter 3 for details.
Collect pH and temperature
readings from various locations
around the edge of a pond.
Events-with-entry Same as above Collect pH and nitrate readings
from various locations along a
stream; add as an entry to each
reading the distance from the
point in the stream to a runoff
drain pipe that empties into the
stream.
Log Set up a stream experiment to collect
a certain number of readings at a set
sampling rate. See Chapter 3 for
details.
Take 20 temperature readings
from a cooling cup of coffee for
10 minutes, taking one reading
every 30 seconds.

HP Mobile Calculating Laboratory
2
1. C h a r g e
Charge the unit. IMPORTANT! Before beginning, plug the StreamSmart 410
into your computer with the mini USB to USB cable that came in the package
with your HP graphing calculator. You will need to charge the unit for
approximately five hours. Your computer must be running for charging to
occur. DO NOT use the cable attached to the StreamSmart 410 for charging.
The low battery symbol (ã) indicates the StreamSmart 410 requires
charging. If the battery symbol appears in the upper left corner of the screen,
be sure to charge the StreamSmart 410 as soon as possible.
I
2. Connect
Connect a Fourier®sensor to the StreamSmart 410 using the sensor cable. The
following experiment uses the Fourier®light intensity sensor, but you can use
any sensor and still follow along with this guide. Note the sensor cable ends
have a flat side; be sure the flat side faces up on the connection to the
StreamSmart 410. Connect the StreamSmart 410 cable to the HP 39/40gs
graphing calculator. Turn on both the calculator and the StreamSmart 410.
Aim the sensor at a florescent light source. Make sure the switch on the sensor
is set to C: 0 – 600 lux.
Figure 1-1 Connect the StreamSmart 410
HP 39gs/40gs
Fourier Sensor
Flat side
HP StreamSmart 410
Flat side
Sensor Cable

HP Mobile Calculating Laboratory 3
3. Start the Application
The StreamSmart Aplet is located in the Aplet Library in the HP 39/40gs.
The user runs the HP Mobile Calculating Laboratory via the StreamSmart
Aplet. Please check online at www.hp.com/calculators to ensure you have
the latest version of the StreamSmart Aplet. See Figure 1-2 below for
instructions on accessing the application.
Figure 1-2 The StreamSmart Aplet on the HP 39/40gs

HP Mobile Calculating Laboratory
4
4. Stream
1. Once the StreamSmart Aplet starts, you will see the message, Waiting for
connection..., quickly followed by a second message, Waiting to start....
When this message appears, press the START menu key to commence data
streaming.
The data stream is a graphical representation of sensor data. The horizontal
axis represents time in seconds, and the vertical axis represents sensor data
in units of measurement. The plot window displays a number of items, as
illustrated in Figure 1-3 below.
Figure 1-3 The Plot Window for the HP 39/40gs

HP Mobile Calculating Laboratory 5
The HP 39/40gs
The StreamSmart Aplet has the same general structure as the other HP 39/40gs
Aplets. For example, the StreamSmart Aplet has the standard Plot and Numeric
views. Table 1-2 below lists the standard Aplet views and their use in the
StreamSmart Aplet for the HP 39/40gs. Note that the standard Symbolic and
Symbolic Setup views are not used by the StreamSmart Aplet.
All of the views listed in Table 1-2 can be accessed on the HP 39/40gs via the
Views menu by pressing V.
Table 1-2 StreamSmart standard views for the HP 39/40gs
View Name/Key(s) Description
Figure 1-4 Plot View
Plot
R
• View up to four data streams
graphically as time graphs
• Perform streaming experiments
•SeeChapter2,Streaming
Experiments for details
Figure 1-5 Numeric View
Numeric
S
• View up to four sensors
numerically in a meter
• Perform selected events and
events-with-entry experiments
•SeeChapter3,Capturing Data
from Events for details
Figure 1-6 Plot Setup, pg 1
Plot Setup
(page 1)
@R
• Optional: set up the window for
the graphic view of the data
stream
• Optional: choose stacked display
of multiple data streams or
overlaid display (superimposed)
• Optional: choose data filters for
display and export of data
•SeeChapter4,Advanced Topics
for details
Figure 1-7 Plot Setup, pg 2
Plot Setup
(page 2)
%%@PAGE#]p{px%
• Optional: select a history of fixed
length (in seconds), or an
automatic history that keeps the
most current data but saves less
and less of earlier data from the
stream(s)
•SeeChapter4,Advanced Topics
for details
Figure 1-8 Sensor Setup
Sensor Setup
@S
• Select/deselect each channel’s
sensor
• Manually identify a sensor from a
list of supported sensors

HP Mobile Calculating Laboratory
6
Additional Application views
In addition to these standard application views, the Views menu on the HP 39/
40gs also contains views specific to the StreamSmart Aplet. Details on these views
can be found in Chapter 4, Advanced Topics.
Table 1-3 Additional StreamSmart 410 views
View Name/Key(s) Description
Figure 1-9 Unit Setup
Unit Setup • Activate/deactivate channels
• Select a unit of measurement for
sensors with multiple units of
measurement available
Figure 1-10 Calibrate
Calibrate • Select a sensor’s channel for
software calibration of the sensor
• Perform 1-point or 2-point
software calibration of the
selected sensor
Figure 1-11 Experiment
Experiment • Perform data logging
experiments with a set duration
(length in seconds) and set
number of samples

HP Mobile Calculating Laboratory 7
The Statistics application
The StreamSmart Aplet works seamlessly with the Statistics Aplet on the HP 39/
40gs to provide you all the tools you need to collect and analyze data.
Once you select the data you want to analyze, the data is sent to columns in the
Statistics Aplet. The Statistics Aplet has ten columns available for data, C1 through
C9, and C0. You may choose a destination column for each sensor's data, or use
the default values provided. When you export data to the Statistics Aplet, you can
choose to follow your data into the Statistics application for analysis, or stay in the
StreamSmart Aplet to continue experimentation. In-depth analysis of the data,
including the calculation of summary statistics (for 1 or 2 variables) and modeling
bi-variate data with various fits, is performed in the Statistics Aplet. This manual
contains a brief introduction to the Statistics Aplet, but for more information about
the Statistics Aplet for the HP 39/40gs, refer to the HP 39/40gs User's Guide.

HP Mobile Calculating Laboratory
8
Manual conventions
Throughout this manual, a few conventions have been employed to help you find
the references under discussion. There are four notational conventions,
corresponding to primary key operations, shifted key operations, and operations
in menus:
1. Functions on the keyboard appear in their own special font. For example,
the ENTER key appears as `. Shifted functions will be referenced both
by the function name and the key combination required; for example, @
R(Plot Setup).
2. The HP 39/40gs calculators employ context-sensitive menus that appear
along the bottom of the display. The functions in these menus are accessed
via the top row of keys on the keyboard directly below the screen display.
There are six of these menu keys in all. For example, in the Plot screen
capture in Table 1-2, the four items shown in the menu are: CHAN,PAN,
SCOPE, and STOP. These keys are represented in a special font. For
example, ZOOM appears as @ZOOM.
3. The StreamSmart Aplet also employs dialogue boxes from time to time, as
shown in the Streamer Plot Setup view in Table 1-2 above. The field names
in menus and other data are shown in bold type. For example, in the top left
corner of the Plot Setup dialog box in Table 1-2, there is a field named
XRNG. In this manual, the field name is shown in bold as XRNG.
4. Screen captures are provided to assist you in checking your data. The actual
data will vary. These screen captures are simply provided to help orient you
to the software and to help you navigate through the functionality.
5. Finally, tasks are numbered to clarify steps in multi-step procedures.

HP Mobile Calculating Laboratory 9
Helpful hints
Remember these helpful hints and shortcuts as you use the StreamSmart Aplet:
• You can reset the StreamSmart Aplet at any time by pressing the U
key on the keyboard and the !RESET menu key. When prompted, press
%YES$ . Press \START for a new data stream.
•The&!OK& menu key is interchangeable with the ` key; the !CANCL
menu key and the #key are also interchangeable.
• When navigating a list of options in a menu, use the alphabetical keys
to jump to your choice. For example, press 7to jump to the first item
in the list that starts with the letter “P.” Press 7again to cycle
through the next option that starts with “P.”
•Use+to navigate lists of options as well. +advances through the
list of items in order.

Streaming Experiments 10
2 Streaming Experiments
Most often, you will simply plug up to four Fourier®sensors into the front of the
StreamSmart 410, connect the StreamSmart 410 to the HP 39/40gs serial port,
(press the StreamSmart 410 ON button if the green light is not illuminated) and
then press the START menu key. When you start the StreamSmart Aplet and press
the START menu key, you will find that you are immediately streaming data from all
of the sensors.
In streaming experiments, data is collected in real-time, with data literally “flowing”
across the screen in up to four separate streams. A streaming experiment is
illustrated conceptually in Figure 2-1 below. Each section of this chapter on
streaming experiments corresponds to one of the bubbles in the flow chart in the
figure.
Figure 2-1 Streaming experiment
As data streams across the screen, you can modify how you view the stream(s).
You can speed the streams up or slow them down simultaneously, as all four
streams share the same horizontal time axis. In addition, you can move each
stream up or down separately and zoom in or out on each stream vertically. Each
stream has its own vertical axis. Zooming and panning each stream separately in
the vertical dimension allows you to get just the right view on your experimental
data. You can also stop and restart the stream(s), and choose a discreet section of
the stream(s) to examine more closely. The speed at which you can collect data
and the flexibility you have in viewing the data are features unique to streaming
experiments performed with the HP MCL.
Table 2-1 describes what you see on screen and summarizes what you can do at
each step in a streaming experiment. Use this table for quick reference. The
following sections elaborate on the steps shown in the bubbles of the flow chart in
Figure 2-1. Refer to these sections for more detailed information on viewing,
selecting, and exporting data.

Streaming Experiments
11
Table 2-1 Streaming experiment flow
Display Description
Figure 2-2 Stream
How I got there:
•Press
UStreamsmart %START
What I see on screen:
• Up to four data streams displayed graphically in real-
time
• Channel number, sensor type and units for the current
selected stream, and screen width expressed in
seconds
What I can do:
•CHAN: select a channel (stream) to trace, etc.
•PAN/ZOOM: toggle between panning (scrolling) and zooming with direction keys
•PAN: scroll up, down, left, and right
•ZOOM: zoom in or out vertically or horizontally
•SCOPE: switch to oscilloscope mode (see Chapter 4)
•START/STOP: stop stream flow or start a new stream
Display Description
Figure 2-3 Select, page 1
How I got there:
•Press@STOP @EXPRT
What I see on screen:
• Data streams
• Current channel and sensor, with tracer active
• Selected data set, based on the current channel, and
the number of data points ready for export
• Current tracer coordinates
What I can do:
•ZOOM, PAN, and TRACE to navigate the data streams and find data of interest
•CROP LEFT and CROP RIGHT
• (next page) to see more functions
Figure 2-4 Select, page 2
How I got there:
•Press
What I see on screen:
• Same as page 1, but with different menu keys
What I can do:
•EDIT: choose a set number of samples between two chosen time values
•SUBTRACT or ADD data points to the current data set
•CANCL to return to the current data stream or OK to export the current data set to
the Statistics application
• (previous page) to return to page 1

Streaming Experiments 12
Viewing a stream of data
Once the StreamSmart Aplet is started with one or more sensors and the
StreamSmart 410 attached, the StreamSmart Aplet displays a graphic
representation of the incoming data streams as time graphs. The horizontal
dimension represents time in seconds, and the vertical dimension represents the
current sensor values in relevant units. Because only one stream may be traced at
a time, the display also identifies the currently selected data stream, the units of
measurement of the selected stream, and the length of time represented by the
width of the display screen.
Figure 2-5 Export
How I got there:
•Press
&!OK&
What I see on screen:
• Fields for the four StreamSmart 410 channels, each
with a checkbox to select or deselect that channel for
data export, and a dropdown box to choose a
destination column in the Statistics application for that
channel’s data
•Acheckbox to choose between staying in the
StreamSmart Aplet after data export or following your
data into the Statistics application
What I can do:
•CHK: select or deselect each channel for data export
•CHOOS: select destination columns for the data from each sensor
•CANCL to return to the original data set or OK to send the data to the Statistics
application
Figure 2-6 Analyze the
Data
How I got there:
• Press&!OK& and then press any key
What I see on screen:
•Numeric view of the Statistics application, with data in
columns
What I can do:
• Scroll through the table of data using W, X, Z, and Y
• Graph data using VAuto Scale
•1VAR/2VAR: toggle between analysis of 1-variable and 2-variable data
•STATS: view summary statistics
• See your HP Calculator’s user guide for more information on the statistics
application, including regression fit types and statistical plot types
Table 2-1 Streaming experiment flow
Display Description

Streaming Experiments
13
The StreamSmart Aplet first tries to identify the attached sensors and makes several
decisions based on the characteristics of the sensors. The StreamSmart Aplet sets
the vertical scales for each data stream based on the units of the sensor and the
initial readings.The StreamSmart Aplet also sets the horizontal scale for the length
of time represented by the width of the display. These default settings ensure that
the streams are visible in the display and moving at a perceptible rate. You can
vary the speed and vertical position of the streams to meet your needs, even while
the data is streaming. Occasionally, the StreamSmart Aplet may not be able to
identify a sensor. See Chapter 4, Advanced Topics for details on how to manually
identify an unrecognized sensor.
Data streams in at over 5,000 samples per second, and the data are shown
graphically on a 131 x 64 pixel display. At this rate and display resolution, if each
pixel column represented a single data point, the stream would move at an
extremely high rate. In fact, under these circumstances, the cursor would fly along
at over eight feet per second! To slow the stream down enough to make the motion
easily perceptible, each pixel in each data stream represents a set of data points.
The user can zoom in horizontally on the streams, essentially making each pixel
represent a smaller and smaller set of data points, or zoom out, making each pixel
represent a larger and larger data set. By default, the StreamSmart Aplet uses the
average of these data points to represent the entire set. In other words,
StreamSmart filters the data by using averages. However, you can choose other
filtering methods. For advanced filtering methods, refer to Chapter 4, Advanced
Topics. Although the data are averaged for graphing purposes, you still have
access to all the data. This is a unique feature of the StreamSmart 410.
The screens shown in Figure 2-7 and Figure 2-8 illustrate the location and basic
functions of the menu keys during and just after streaming. Use @ZOOM! and @@PAN#
to modify the appearance of the streams. \SCOPE starts streaming in oscilloscope
mode, in which the data streams from left to right across the screen, then repeats
upon reaching the right edge of the display, similar to the sweep of an
oscilloscope. \START/kSTOP is a toggle that stops and restarts data streaming. Once
you stop the stream, there are three additional functions available: Trace, Export,
and Next Page. Use !TRACE to view numerical characteristics of points in the data
stream. !EXPRT replaces the \SCOPE function once streaming is stopped; it opens a
set of tools for selecting a final data set to analyze. (next page) displays
the second page of the menu key functions.
Figure 2-7 During Streaming Figure 2-8 After Streaming

Streaming Experiments 14
Table 2-2 lists the menu functions available during and just after streaming.
Table 2-2 Streaming menu keys, page 1
Menu Key Description
\CHAN This menu key opens the channel selection menu, which allows you to
select which stream to trace. By extension, you are also choosing which
stream to zoom or pan vertically. Alternately, you can use the keys
numbered 1-4 to select a channel.
@@PAN# /\ZOOM This menu key is a toggle that determines how the direction keys function.
Press once to activate Pan mode, once more to activate Zoom mode. The
active mode is indicated by a small square after the menu mode name.
@@PAN# Toggles the direction keys to scroll the data streams up, down, left, and
right to find data of interest. Panning horizontally affects all streams
uniformly; panning vertically affects only the current, selected stream.
\ZOOM Used with the direction keys, zooms in or out, horizontally or vertically, to
get the best view of the streams. Zooming horizontally affects all streams
uniformly, while zooming vertically affects only the current, selected
stream.
\SCOPE Switches to oscilloscope mode. In this mode, the data stream sweeps
from left to right, then returns to start from the left for another sweep. See
Chapter 4, Advanced Topics for details.
\\START /kSTOP This toggle starts and stops data streaming. Stopping the stream(s)
permits exploration of the data and selection of a final data set for
export. Start deletes any current data set and starts a new set of streams.
\TRACE Activates Trace mode, allowing you to trace along any of the data
streams.
\EXPRT Opens the Export Data menu, with functions for isolating and selecting a
final data set to export to the Statistics application.
Accesses the second page of menu keys.

Streaming Experiments
15
Zoom, Pan and Trace are radio button toggles that work in conjunction with the
direction keys (W, X, Z, and Y). Only one function is active at a time, its active
status indicated by a small square after the function name. For example, TRACqqq!
means the tracer is active and the direction keys will be used to trace the selected
stream or jump to another stream. Table 2-3 describes how the direction keys are
used for each of these functions.
Table 2-3 Functions controlled by the direction keys
Menu Key Description
@ZOOM! ZY
• Use these keys to zoom in or out horizontally
• If you are actively streaming data, these keys speed up
the stream or slow it down
• If streaming has stopped, trace to data of interest and
then switch to Zoom to zoom in or out on the tracer
coordinates. The tracer location stays fixed.
•Press
Yto zoom in horizontally on the tracer position,
effectively decreasing the amount of time represented
by the width of the display
•Press
Zto zoom out horizontally on the tracer
position, effectively increasing the amount of time
represented by the width of the display
@ZOOM!! W
X
• Zoom in/out vertically on the current selected data
stream
•Press
W to zoom in and press Xto zoom out
• The center of the display stays fixed
• Decreases/increases the vertical scale, in sensor units,
of the current, selected stream
%PAN$ ZY
• Move all stream(s) left and right in the display
• The screen display is a fixed window that moves back
and forth along the stream(s)
%PAN$ W
X
• Move the current, selected stream up and down in the
display
• Useful to separate or superimpose the streams for
viewing purposes
!TRACE ZY
• Moves left or right from pixel to pixel in the current,
selected data stream
• Displays timestamp and sensor data
!TRACE W
X
• Moves the tracer from one stream to another
•Press
X to move from channel to channel in
increasing numerical order
•Press
W to move through the channels in decreasing
numerical order

Streaming Experiments 16
Besides navigating and tracing the data set to find data of interest, StreamSmart
also lets you compare any two points in a single stream and manually add a data
point as a row in your chosen columns in the Statistics application. These functions
are found on the second page of the Stream menu, which is only active once
streaming has stopped.
Mark and Swap can be used together to examine the relationship between points
in the data stream currently being traced. When you press @MRK$, the StreamSmart
Aplet sets a visible mark at the current tracer location. Once the mark is set you
can trace to any other point in the stream. The StreamSmart Aplet displays the
change in both x and y between the mark and the current tracer location (see
Figure 2-9). Press @SWAP! to switch the tracer and mark locations.
Figure 2-9 A Mark and the Current Tracer Location
Add and Setup are also used together when you want to build your final data set
point by point. For example, suppose a data stream represents the dampened
oscillations of a vibrating rod. In this case, you may want to collect just the
maximum of each oscillation into a data set. Press \SETUP to choose columns in the
Statistics application for your data. Once the columns have been chosen, return to
your data stream and trace to the first point you want to keep in your data set. Press
%ADD$ to add the data as a row to your chosen columns in the Statistics
application. StreamSmart briefly displays a message telling you the row to which
the data point is being exported. Continue in this fashion until you have collected
all the points you want, then start the Statistics application to view and analyze
your data. Table 2-4 lists the second page of menu keys and their functions.
Table 2-4 Menu keys, page 2
Menu Key Description
@MRK$ Toggles Mark mode on and off, setting a mark at the current tracer
position, or erasing the mark.
@SWAP! Switches the tracing cursor and the mark on the current, selected stream.
@GOTO@ Permits you to jump to a specific time along the current stream.
\SETUP Sets the destination columns for data when %ADD$ is pressed.
%ADD$ Adds the current data point to the default columns in the Statistics
application.
Returns to the previous page of menu keys.

Streaming Experiments
17
Low battery symbol
The low battery symbol (ã) indicates the StreamSmart 410 requires charging. If
the battery symbol appears in the upper left corner of the screen, as shown in
Figure 2-10, be sure to charge the StreamSmart 410 as soon as possible. See
Chapter 1 for instructions on charging the battery.
Select data
Once you have stopped streaming data, you will want to examine the data to find
just the data set you wish to analyze. The !EXPRT menu key opens the Export Data
menu. Here you will find all the tools you’ll need to identify and select your final
data set. Note that Zoom, Pan, and Trace are still available. In addition, you can
use %${nn%$ and $%nn{%$ to crop data off the left and right sides of the data set, as
shown in Figure 2-11. You can also thin the data by subtracting points; if you
change your mind, you can add them back.
Table 2-5 and Table 2-6 describe the new functions available on the two pages of
the Export menu.
Figure 2-10 The Low Battery Symbol Figure 2-11 The Cropping Tools
Table 2-5 Export Data Menu Keys, page 1
Menu Key Description
%${nn%$ Toggles left-cropping on and off. Use Yand Zto move the left-crop
bar. Data to the left of the bar is excluded from the final data set.
$%nn{%$ Toggles right-cropping on and off. Use Yand Zto move the right-crop
bar. Data to the right of the bar is excluded from the final data set.
Moves to a second page of menu keys.
Table 2-6 Export Data Menu Keys, page 2
Menu Key Description
$EDIT# Lets you select a specific number of data points between two time values
for export to the Statistics application.