Difference between revisions of "EGR 103/DAQ 1"

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This page contains pictures and graphs related to Data Acquisition Laboratory 1 (DAQ 1) of [[EGR 53]]. It has been updated for Fall, 2010.
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== '''Note:''' For Fall 2019 and after, you will want the [[Python:DAQ_1]] page. ==
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<!--
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== Introduction ==
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This page contains pictures and graphs related to Data Acquisition Laboratory 1 (DAQ 1) of [[EGR 103]]. It has been updated for Spring, 2018.  This page underwent a major revision in Fall of 2017 based on the DAQmx drivers and MATLAB's elimination of legacy toolbox codes.
  
 
== Supporting Pundit Pages ==
 
== Supporting Pundit Pages ==
 
*[[MATLAB:CB-68LP Pinout]]
 
*[[MATLAB:CB-68LP Pinout]]
 
*[[Resistor Color Codes]]
 
*[[Resistor Color Codes]]
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*[[Transferring_Files]]
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== Typographical Errors / Clarifications ==
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* If the computer says your device is not found, try 'Dev2' instead of 'Dev1' in the
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addDigitalChannel(s,'Dev1','Port0/Line0:2','OutputOnly')
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: line.
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* Before running the program, the person at the DAQ machine will need to install the pydaqmx module:
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** Go to the Start button, find the Anaconda3 folder, and click the Anaconda prompt
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** In the Anaconda terminal that just opened, type
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pip install pydaqmx
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** One it is done installing (or confirms that it is installed), close the Anaconda terminal
  
 
== Equipment Used ==
 
== Equipment Used ==
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[[Image:DAQ1Danger.jpg|thumb|Same card, after overheating]]
 
[[Image:DAQ1Danger.jpg|thumb|Same card, after overheating]]
 
B209 has machines with two different data acquisition cards.  Most of the machines have NI PCI 6014e cards, which will be what is discussed here.  The others have a newer NI PCI 6221 cards.
 
B209 has machines with two different data acquisition cards.  Most of the machines have NI PCI 6014e cards, which will be what is discussed here.  The others have a newer NI PCI 6221 cards.
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The NI PCI 6014e card can read up to 16 single-ended (8 differential) analog voltage measurements, has two analog outputs, and has 8 configurable digital input/output lines. The 6221 cards are more powerful but, generally in EGR 53, we will limit ourselves to the features available on the 6014e cards.
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The NI PCI 6014e card can read up to 16 single-ended (8 differential) analog voltage measurements, has two analog outputs, and has 8 configurable digital input/output lines. The 6221 cards are more powerful but, generally in EGR 103, we will limit ourselves to the features available on the 6014e cards.
  
 
Be careful when making connections; improperly connecting wires can lead to catastrophic damage on the DAQ cards, as is shown on the second picture at right.
 
Be careful when making connections; improperly connecting wires can lead to catastrophic damage on the DAQ cards, as is shown on the second picture at right.
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For the main part of the board, half-columns are connected together.  For example, rows (ABCDE) in column 3 are all connected.  Note, however, that ABCDE are not connected to FGHIJ.
 
For the main part of the board, half-columns are connected together.  For example, rows (ABCDE) in column 3 are all connected.  Note, however, that ABCDE are not connected to FGHIJ.
  
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Also, there are some helpful index numbers at the top and bottom to help determine which column you are in.  For rows X and Y, some indices do not exist.  For example, there are not Pins X6, X12, or X18, nor Y6, Y12, or Y18.
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Also, there are some helpful index numbers at the top and bottom to help determine which column you are in.  For rows X and Y, some indices do not exist.  For example, there is no pin at X6, X12, X18, Y6, Y12, or Y18.
 
<br clear=all />
 
<br clear=all />
  
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[[Image:DAQ1LEDs.jpg|thumb|Several Light Emitting Diodes]]
 
[[Image:DAQ1LEDs.jpg|thumb|Several Light Emitting Diodes]]
 
[[Image:DAQ1LEDsClose.jpg|thumb|Closeup of two round LEDs]]
 
[[Image:DAQ1LEDsClose.jpg|thumb|Closeup of two round LEDs]]
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[[File:LED, 5mm, green (en).svg|thumb|Drawing of LED from Wikipedia [http://en.wikipedia.org/wiki/Light-emitting_diode Light-emitting_diode] page]]
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[[File:LED,_5mm,_green_(en).svg|thumb|Drawing of LED from Wikipedia [http://en.wikipedia.org/wiki/Light-emitting_diode Light-emitting_diode] page]]
 
A diode is an electrical element that generally only allows current to flow in one direction - and only after there is a sufficient voltage difference across the appropriate terminals.
 
A diode is an electrical element that generally only allows current to flow in one direction - and only after there is a sufficient voltage difference across the appropriate terminals.
 
LEDs - Light Emitting Diodes - are a special form of diode that emit light when current flows through them.
 
LEDs - Light Emitting Diodes - are a special form of diode that emit light when current flows through them.
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[[Image:DAQ1Circuit.jpg|thumb|Circuit built on breadboard]]
 
[[Image:DAQ1Circuit.jpg|thumb|Circuit built on breadboard]]
 
[[Image:DAQ1Wiring.jpg|thumb|Connections to CB-68LP]]
 
[[Image:DAQ1Wiring.jpg|thumb|Connections to CB-68LP]]
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'''''IMPORTANT NOTE''''' For the Fall 2010 semester for DAQ 1, the ''green'' wires in the pictures at right will '''not''' be used.
 
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The pictures at right show both the breadboard and the CB-68LP once everything has been properly connected.  Note especially on the CB-68LP where the wires are - there will be no connections in the first two columns and there is only one connection - the black wire for digital ground - in the fifth column.
 
The pictures at right show both the breadboard and the CB-68LP once everything has been properly connected.  Note especially on the CB-68LP where the wires are - there will be no connections in the first two columns and there is only one connection - the black wire for digital ground - in the fifth column.
 
<br clear=all />
 
<br clear=all />
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== Code ==
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The following code listing is for <code>ThreeBits.m</code>
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<source lang="matlab">
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% Clear out workspace
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clear
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% Create a session
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s = daq.createSession('ni')
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% Add output lines to session
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addDigitalChannel(s,'Dev1','Port0/Line0:2','OutputOnly')
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% Writing values to output lines using binary
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outputSingleScan(s, [1 1 1]);
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fprintf('Press return to continue\n');
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pause
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outputSingleScan(s, [0 0 0]);
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% Writing values to output lines using base 10
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MyVal = 0
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while 0<=MyVal & MyVal<=7
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    MyBinVal = decimalToBinaryVector(MyVal, 3, 'LSBFirst');
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    outputSingleScan(s, MyBinVal);
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    fprintf('Displaying %d as %d %d %d\n', ...
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        MyVal, MyBinVal(end:-1:1))                 
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    MyVal = floor(input('Enter a number between 0 and 7: '));
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end
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% Turn all outputs off
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outputSingleScan(s, [0 0 0]);
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</source>
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== Other Resources ==
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* Landing Lights Animation:
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[[File:LLGifSmall.gif]]
  
 
== Questions ==
 
== Questions ==
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<references />
 
<references />
  
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[[Category:EGR 53]]
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[[Category:EGR 103]]
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Latest revision as of 17:13, 7 October 2019

Note: For Fall 2019 and after, you will want the Python:DAQ_1 page.

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