RE: BLE Nano v2 nRF52832 notify issue

fgaetani — Sat, 13 Jan 2018 14:56:05 GMT

Ok, I understand that 100Hz is high for an Android device, but the hole of 123ms is very strange! What could be the cause?

RE: BLE Nano v2 nRF52832 notify issue

Turbo J — Sat, 13 Jan 2018 14:13:12 GMT

But, using the BLE_CentralTest Example, I can not obtain the value with 100Hz frequency.

Hitting the 100 Hz exactly is impossible on Android, because the minimum interval it uses is 15ms.

You need to request this interval from code using:

bluetoothGatt.requestConnectionPriority(BluetoothGatt.CONNECTION_PRIORITY_HIGH);

Note that the NRF52 has buffers for notifications and other TX data, so you could send more than one data value during one connection interval time slice.