how to increase receiving length of data from apk to controller BLE

[N A Karmarkar]

Hello,

i have complied and run this  https://github.com/NordicPlayground/nRF5x-custom-ble-service-tutorial  program, so in on_write  function am copying data from  receiving buffer to array... like this

for(i=0; i<p_evt_write->len; i++)
{
dt_array[i] = p_evt_write->data[i];
}

here i am able to receive only one byte 

But  i want receive multiple bytes so what and all changes need to be done here

Please resolve this issue its little urgent..!!

thank you

[Karl Ylvisaker]

Hello,

here i am able to receive only one byte 

What is the maximum length of your characteristic's value?
The default max length of the characteristic in the tutorial is sizeof(uint8_t), which is 1 byte.

attr_char_value.max_len   = sizeof(uint8_t);

Best regards,
Karl

[N A Karmarkar]

Hello,
Thank you for your reply

i want to send some array of length 50

so what changes i should do..??

regards 

Nagendra

 

[Karl Ylvisaker]

Hello Nagendra,

N A Karmarkar said:

Thank you for your reply

No problem at all, I am happy to help! 

N A Karmarkar said:

so what changes i should do..??

Karl Ylvisaker said:

What is the maximum length of your characteristic's value?

I have not really seen any relevant part of your code - namely your custom service declaration - but if you are following the tutorial you will need to change the maximum length of the characteristic to allow an input bigger than 1 byte.
 
Best regards,
Karl

[N A Karmarkar]

Hello karl,

i have used the same project file...zip folder available in given link

https://github.com/NordicPlayground/nRF5x-custom-ble-service-tutorial

here u can check what and all there

[N A Karmarkar]

issue resolved thanks for the support

[Karl Ylvisaker]

I am happy to hear that the issue is resolved!

For future reference it is always appreciated if you post the solution to your particular problem after having solved it, so that other forum-goers with the same question can find help in your question.

Please do not hesitate to open a new ticket if you encounter any issues or questions in the future.

Good luck with your development!

Best regards,
Karl