Android Question Adafruit Feather M0

Erel

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• Nov 18, 2018

• #2

No. You shouldn't use prefix mode unless both sides of the connection implement the protocol.

Why isn't your code based on the latest example: https://www.b4x.com/android/forum/threads/android-bluetooth-bluetoothadmin-tutorial.14768/#content

 

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fishwolf

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• Nov 19, 2018

• #3

Erel said:

No. You shouldn't use prefix mode unless both sides of the connection implement the protocol.

Why isn't your code based on the latest example: https://www.b4x.com/android/forum/threads/android-bluetooth-bluetoothadmin-tutorial.14768/#content

Click to expand...

with the lastest example i have the same error on connection

B4X:

java.io.IOException: read failed, socket might closed or timeout, read ret: -1

 

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Erel

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• Nov 20, 2018

• #4

It probably listens on a non-standard address. Serial.Connect tries to connect to "00001101-0000-1000-8000-00805F9B34FB"

 

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fishwolf

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• Nov 20, 2018

• #5

i see the same address with app that work fine and with B4X app

 

Last edited: Nov 21, 2018

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Erel

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• Nov 21, 2018

• #6

Please edit the your posts and upload small images.

 

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fishwolf

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• Nov 21, 2018

• #7

Erel said:

Please edit the your posts and upload small images.

Click to expand...

done

 

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Erel

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• Nov 21, 2018

• #8

This is a BLE device. Not classic Bluetooth. Try the BLE example.

 

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fishwolf

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• Nov 23, 2018

• #9

Ok, with this example i can connect to adafruit and read data.

but how can i read the uart data?

i have a Adafruit that send "123" each a seconds

https://learn.adafruit.com/introducing-adafruit-ble-bluetooth-low-energy-friend/uart-service

B4X:

DataAvailable
Service=6e400001-b5a3-f393-e0a9-e50e24dcca9e
Characteristics=(MyMap) {6e400003-b5a3-f393-e0a9-e50e24dcca9e=[B@1f63311, 6e400002-b5a3-f393-e0a9-e50e24dcca9e=[B@9891c76}
Service UART
char: 6e400003-b5a3-f393-e0a9-e50e24dcca9e, value = 
char: 6e400003-b5a3-f393-e0a9-e50e24dcca9e, value = [B@1f63311
char: 6e400002-b5a3-f393-e0a9-e50e24dcca9e, value = 
char: 6e400002-b5a3-f393-e0a9-e50e24dcca9e, value = [B@9891c76

 

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Erel

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• Nov 25, 2018

• #10

You should start a new thread for a new question. Make sure to go over the BLE tutorial.

 

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