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Can´t read from every characteristic

See original GitHub issue

Hey there, i am trying to read some characteristics from my BLE-Module -> RN4020 which controls a chip over UART.

Now your module works great until i try to read some specific characteristics…

error code: 700
"BleGattException{status=2, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}"

and sometimes

error code: 600
"BleGattCannotStartException{status=-1, bleGattOperation=BleGattOperation{description='CHARACTERISTIC_READ'}}"

Any ideas on this?

And a general question, is it possible to just send something to the connected ble device? Something like write(identifier, “P0”) for example or does it have to be written to an characteristic?

Good work though 😛

Issue Analytics

State:
Created 7 years ago
Comments:6 (3 by maintainers)

Top GitHub Comments

1reaction

Cierpliwycommented, Oct 19, 2016

As I can’t help you with this issue I’m closing it. Thank you for your feedback 😃

0reactions

vschmidtcommented, Apr 12, 2021

I have the same problem with ESP32. However, when I use the “nRF Connect” or “Scanner BLE” applications, I can read the values without problems. Is there a parameter that makes a reading without validating with the “.isNotifiable” method?

Scanner BLE:

nRF Connect:

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