Communicating between iOS and Android with Bluetooth LE

Question

I\'ve got a working app using CoreBluetooth to communicate between an iPad (central) and iPhone (peripheral). I have one service that has two characteristics. I have a Nexus

Answer 1

I would like to add few information to this thread as a part of our RnD on BLE topic between cross platform.

Peripheral mode is working without any issues with Xiomi Mi A1 (OS version Oreo, Android 8.0).

Here are few observation on throughput that we found during our RnD on iPhone 8 and Xiomi Mi A1 but it still has to get matured with other custom Android OS used in latest Samsung S8. The below data is based on write_with_response.

1. iPhone 8 (BLE 5.0) as Central and Linux desktop (Ubuntu 16.04 with BLE dongle 4.0): MTU = 2048 : Throughput - 2.5 KiloBytes per sec.

2. iPhone 8 (BLE 5.0) as Central and Android OS with BLE version 4.2 as Peripheral(Xiomi Mi A1): MTU = 180 : Throughput - 2.5 KiloBytes per sec.

3. iPhone 8 (BLE 5.0) as Central and iPhone 7 plus (BLE 4.2) as Peripheral : MTU = 512 : Throughput - 7.1 KiloBytes per sec.

4. iPhone 8 (BLE 5.0) as Central and Samsung S8 (BLE 5.0) as Peripheral : Samsung S8 failed to work as peripheral

5. iPhone 8 (BLE 5.0) as Central and iPhone 8 plus (BLE 5.0) as Peripheral : MTU = 512 : Throughput - 15.5 KiloBytes per sec.