Arduino-BiCMOS-Curve-Tracer.pdf

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Arduino BiCMOS Curve Tracer
Arduino BiCMOS Curve Tracer
Written By: Don Sauer
SUMMARY
This project shows how the analog input and output ports of an Arduino can be programmed
to perform automated analog testing. The test results can then be saved as data in text files
which can further be plotted into graphs.
Step 1 — Arduino BiCMOS Curve Tracer
The curve tracer can measure
BiCMOS transistors of both
polarities.
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Arduino BiCMOS Curve Tracer
Step 2
Here is the whole circuit.
Step 3
This is a circuit which you may
want to use more than once, and
solderless breadboards are not
usually meant for long-term use.
An easy alternative is to build up a
CardBoard printed circuit board.
This involves printing out a layout,
gluing the printout to cardboard and
hot-gluing all the components in
place. Then, wire-wrap up this
simple circuit.
© Make Projects
www.makeprojects.com
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Arduino BiCMOS Curve Tracer
Step 4
This code needs to be loaded into
the Arduino window and the
Processing window. The code can
be copied and pasted into each
window from the following page:
http://www.idea2ic.com/BiCmosCurveTracer...
Step 5
It takes a while for the graph
window to come up. When it does,
the curve tracing is started by first
clicking the graph window, and then
typing "s". The Processing code
also writes the curve tracer data to
a textfile. The
Sketch/Show_Sketch_Folder menu
will open up the proper folder. The
file initially gets named the exact
time the data was taken. It's not a
bad idea to rename that file.
© Make Projects
www.makeprojects.com
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Arduino BiCMOS Curve Tracer
Step 6
Four SciLab command templates
can graph the data files into
curves, provided that the path to
the files is corrected. The
previously-mentioned web page
has both these templates and
templates for Octave as well.
This document was last generated on 2012-11-01 09:48:22 PM.
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www.makeprojects.com
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