Need Guidance On Data Acquisition Using Bluetooth of an Accelerometer

Hello everyone. I am completely new to LabVIEW and I have a few questions to ask.
So here is what I am trying to do. I have accelerometers connected to a microcontroller board (SK40C from Cytron, details are here) using PIC16F877A. Then, the output of the microcontroller is connected to a bluetooth module transmitter (SKKCA-21 from Cytron also, details are here). And from here, the data are transmitted to a laptop for LabVIEW data acquisition. My aim is convert the voltage into acceleration, display graphs and possibly storage of data.
I have searched through the forum and I got a little bit confuse of where I should start. These are a few question I want to ask:
1) What are the additional software/hardware that I need ? Because I read about this VISA and DAQ thingy which I'm don't quite understand about it.
2) Can anyone provide a step by step guide on what I should start with ? I am very very new to LabVIEW and time is abit of a constrain to me.
Thanks in advance for the help. Hope to hear some replies soon

The DAQ "thingy" is for use when using NI data acquisition boards. VISA is used to communicate with instruments/devices over a serial port, TCP/IP, GPIB, and sometimes USB.
Based on a brief look at the documentation, it appears that the transmitter connects to a computer via a USB cable. The USB driver creates a virtual COM port, so the computer should see a serial port. You can then communicate with the transmitter using VISA and treat the trasmitter as a serial port device.
You should first try talking to it using another terminal program. On Windows HyperTerminal is your best bet. This is to make sure you've installed all the required software and you can talk to it before getting into LabVIEW. Once you've been able to talk to it with (for example) HyperTerminal, then open up the serial port examples and try sending the same commands. You will need to determine from the documentation for the transmitter whether you need to append a special character, such as a carriage return or linefeed (or both) when sending commands, and whether the device ends its messages with a special character (such as a carriage return or linefeed). You should also read over the numerous articles in this page: http://zone.ni.com/devzone/cda/tut/p/id/4370

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Create table student (dept number(10), dep_name varchar2(10),join_date date,years_attended number(10),end_date date);
insert into student values (1,'I',to_date('3/7/1917','MM/DD/YYYY'),4,to_date('8/26/1987','MM/DD/YYYY'));
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commit;I need a maximum date value join_date for each department. If max(join_date) has two records for each dept then max(end_date) should be considered. I have used a below select query
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1     D     1/1/1920     5     8/26/1994
1     C     1/1/1920     6     8/26/1945
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2     D     8/16/1916     10     8/26/1987
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3     I     7/28/1920     8     8/26/1965
4     I     6/10/1929     1     8/26/1943
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5     D     2/10/1931     2     8/26/1943
5     I     2/10/1931     24     8/26/1962But I am looking for the result which gives me only one maximum value for each dept column. First it should look for maximum value of join_date, if two records has same join_date then max(end_date) should be considered. The result should be sumthing like this
1     D     1/1/1920     5     8/26/1994
2     D     8/16/1916     10     8/26/1987
3     I     7/28/1920     8     8/26/1965
4     C     6/10/1929     30     8/26/1967
5     I     2/10/1931     24     8/26/1962Can you please tell me how to rewrite the select query to get the above results.
Edited by: user11872870 on Aug 2, 2011 5:29 PM
Edited by: user11872870 on Aug 2, 2011 5:36 PM

Hi,
That's called a Top-N Query , and here's one way to do it:
WITH     got_r_num     AS
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     ,     ROW_NUMBER () OVER ( PARTITION BY dept
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FROM       got_r_num
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SELECT    *
FROM       student
WHERE        (dept, join_date, end_date)
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Also, the ROW_NUMBER approach is guaranteed to return only 1 row per dept. Using the GROUP BY approach,if there is a tie on join_date and end_date, then it will return all contenders in that dept. Using ROW_NUMBER, it's easy to add as many tie-breaking expressions as you want, and, if there is still a tie, it will arbirarily pick one of the rows involved in the tie as #1.
Thanks for posting the CREATE TABLE and INSERT statments! That's very helpful.
Edited by: Frank Kulash on Aug 2, 2011 9:00 PM
Added GROUP BY alternative

Need Guidance On Data Acquisitio​n Using Bluetooth of an Accelerome​ter

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Need Guidance On Data Acquisition Using Bluetooth of an Accelerometer