Bluetooth serial read data

[Geert-Jan Kreileman]

Hi,

I used a example from someone online (someone from kivy i think it was) with a example to make a bluetooth serial connection from kivy on a android phone to a bluetooth serial device.

Connecting works, sending data probably also (even though i don't use that), but i can't get receiving to work.

Here's my example:

from jnius import autoclass
 
class BluetoothComm:
 
def get_socket_stream(self,name):
BluetoothAdapter = autoclass('android.bluetooth.BluetoothAdapter')
BluetoothDevice = autoclass('android.bluetooth.BluetoothDevice')
BluetoothSocket = autoclass('android.bluetooth.BluetoothSocket')
UUID = autoclass('java.util.UUID')
paired_devices = BluetoothAdapter.getDefaultAdapter().getBondedDevices().toArray()
#Logger.info(str(paired_devices));
socket = None
for device in paired_devices:
#Logger.info(str(device.getName()));
#if device.getName() == name:
socket = device.createRfcommSocketToServiceRecord(
UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"))
recv_stream = socket.getInputStream()
send_stream = socket.getOutputStream()
break
socket.connect()
return recv_stream, send_stream
 
def __init__(self):
#try:
#buffer = bytes([1024]);
#byte buf = new byte[64];
global recv_stream;
global send_stream;
recv_stream, send_stream = self.get_socket_stream('hc06')
send_stream.write('hello\n')
#Logger.info(str(recv_stream.read(buffer)));
send_stream.flush()
Clock.schedule_interval(self.read, 5)
#except:
# Logger.exception("fout met blauwe tand");
def read(self, dt=0):
global recv_stream;
global send_stream;
Logger.info("start read");
#buffer = bytes([2048]);
try:
#Logger.info(str(recv_stream.read(bytes(1024)).decode("utf-8")));
Logger.info(str(recv_stream.available()));
if recv_stream.available() > 0:
#ik mag gaan lezen!
bytesread = recv_stream.read(bytes(1024));
print "test";
Logger.info(str(type(bytesread)));
except:
Logger.exception("au");

 

Reading doesnt work, it does sais that bytes are availible, but if i print recv_stream.read(bytes(1024)) the result is a 1 or a 4.

What should i do?! Thanks! :)

[KyungHoon Baek]

Have you solved this solution??
I also want to know this solution.

In my opinison, this maybe solved by callling java.io.InputStreamReader

by pyJNIus

[Anders Högqvist]

http://stackoverflow.com/questions/29719898/how-to-convert-android-bluetooth-socket-inputstream-to-python-string-in-kivy/29747682#29747682