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VII. Using the Graphing Calculator and Pre-Devised Programs to Run the EA100.
Instructors Directions: Give the workshop participants an idea when it might be
beneficial to use predevised programs to setup and trigger the EA100. Also describe
the Audiences such as primary grades who might appreciate this capability. We will
use the simple programs which are listed in the appendix and are capable of
customizing the Data log section. I would suggest also choosing a program from
either of our support books which runs the EA100, collects the data, transfers it to a
lists, as well as sets up and draws a scatter plot.
The EA100 can be set up and triggered by using the Graphing Calculator and predesigned
programs that not only can choose the sample time, and number of samples, but will also
transfer the data back to the calculator, setup and graph the data according to your needs.
You can also design the start of the program to create a description that is displayed on
the main screen which will help guide you through the experiment.
A. Overview of Programming
There are a total of 10 Commands which can be used to specify parameters for the
EA100. You might want to predefine the channel that is being sampled, type of data
being sampled, number of samples, and sample rate. A program is a series of commands
which when executed perform a series of actions communicated by the Calculator to the
EA100.
The Data Analyzer can also be used to perform certain post processing calculations such
as first and second time derivative, as well as max., min., standard deviation, and mean.
The four probes listed are able to be auto recognized by the EA100, but other more
specialized probes must be used in conjunction with a conversion equation that is
preprogrammed by the 9850G in order to make sense of the data.
In this manual we will not cover the specifics to programming the Graphing
Calculator to run the EA100. We will simply use pre-designed programs with a
brief description of their function and purpose so the workshop participant can
experience the ease of use of using the EA100 in conjunction with a program.
B. Using a Simple Program to Set Up the EA100
In this section We will run a simple program which will use the EA100 and the light
probe. The user will be able to select the number of samplings (Points) as well as input
the distances away from the light source. This is directly applicable to the Twinkle,
Twinkle lab which was used to explore the multimeter mode of the EA100. In this case
the EA100 will keep track of the brightness at certain points as well as the distance away.
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