Reading Floats being sent by the RFduino

[saadbutt67]

Hi @lann , I have been using your test project but i am facing an issue. I cant figure out how to read float values being sent by the RFduino to the android application. I have tried Floatbuffer, float.parse string, even the HEX helper but all in vain . From what i understand your code gives us a way to get the recieved data (initially in the form of bytes) in the form of a string or convert it into HEX values. but it would be extremely helpfull if you can let me know how to solve this problem

[madCode]

I am also having this issue.

[saadbutt67]

@madCode
first of all use RFduinoBLE.sendFloat() to send a float value [reffer to this guide for help on that http://files.rfdigital.com/rfduino.ble.programming.reference.pdf]

second use this code in android for receiving
byte[] ff = intent.getByteArrayExtra(RFduinoService.EXTRA_DATA);
float f = ByteBuffer.wrap(ff).order(ByteOrder.LITTLE_ENDIAN).getFloat();
this will be extremely slow in case you are sending lots of values
hope this solves the issue

[madCode]

This worked! Thank you :)

[tmsio]

Hi, if i have to send 2 float?
This is my code:
RFduinoBLE.sendFloat(a);
RFduinoBLE.sendFloat(b);

Thank You.

[angel545]

@saadbutt67 hey, I facing the same problem but I have no clue how to change the source code of the apk. Possible to help me with it? thanks

[saadbutt67]

@angel545 are you using eclipse or android studio

[angel545]

@saadbutt67 I am using android studio. I wonder is it possible that you can send me the modified apk file straight? thanks

[angel545]

@saadbutt67 I tried a few times to compile the apk file again after
changing the code but it still doesnt work. May I knw in which part of
the code you add in that two lines of code? thanks

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[saadbutt67]

@angel545
Find this line in the code

addData(intent.getByteArrayExtra(RFduinoService.EXTRA_DATA));

This is where you're receiving data

[saadbutt67]

Replace this line of code with the one i commented earlier

For multiple float values do a loop

Hope this helps