write without response

[kydean]

Is there a way to configure the nRF51822 to support writewithoutResponse? I'm using the Adafruit Feather 32u4 with the nRF51822 ble chip. My iOS app works fine with the older Adafruit BLE4.0 nRF8001, but does not work with the Feather. The problem seems to be lack of support for the writewithoutResponse option. I was hoping my iOS app would port over directly.

[run_ar]

Not familiar with the adafruit libreries. But seems there is an option for writewithoutResponse here at least: https://learn.adafruit.com/adafruit-feather-m0-bluefruit-le/ble-gatt

See at+gattaddchar