acquisition of bluetooth grab polar heart rate

Hello!

I am trying to build a VI who receive the heart rate of the polar grab bluetooth device for the acquisition of the heart rate. I have create a vi, but data from it are just gibberish to me. So I don't know how to turn it into something useful. I'm using labview in 2011. So far, this VI looks like:

Data that fate of data looks like:

Any help would be appreciated!

A wild guess, it is what has something to do with the size of the message and the fact that wire you a 12 for the "bytes read" entry:

bytes to read is the number of bytes to read. Use one of the following techniques to process messages whose size can vary:

  • Send messages that are preceded by a fixed-size header that describes the message. For example, it may contain a command integer that identifies what message follows and is a length integer that identifies how much more data in the message. The server and the client receive messages by issuing a function of reading eight bytes (assuming that each is a four-byte integer), converting them in the two integers and using the integer of length to determine the number of bytes to move to a second reading works for the rest of the message. Once this second reading is completed, each side loops to playback of the eight byte header. This technique is the most flexible, but it requires two readings for each message displayed. In practice, the second reading full usually immediately if the message is written with a single write function.
  • Make each message of fixed size. When the content of a message is less than the fixed size that you specify, touch the message to fixed size. This technique is slightly more efficient because only a single reading is required to receive a message at the expense of sending unnecessary data sometimes.
  • Send messages that are strictly ASCII content, where each message ends with a pair of return / newline of transport of characters. The playback function has a mode of entry which, when past CRLF, causes the read until you see a jump of line and carriage return sequence. This technique becomes more complicated when the message data may contain CRLF sequences, but it is quite common in many protocols of the internet, including POP3, FTP and HTTP.

Tags: NI Software

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