Phones with good BLE implementation

RE: Phones with good BLE implementation

Hung Bui — Thu, 02 Jul 2015 14:21:12 GMT

@ned_zeppelin: I actually haven't tried to know what the maximum peripheral one phone can handle. I guess it depends largely on the chipset, driver, the connection interval of each connection. I tried with 7.5ms conection interval and got up to 4-5 peripheral at little while ago. Our S120 central Stack supports 8 connections with peripheral at a time.

RE: Phones with good BLE implementation

ned_zeppelin — Tue, 30 Jun 2015 12:56:21 GMT

As for the number of peripherals our goal is 6-8. Do you think that would be unrealistic (for a "golden device")?

RE: Phones with good BLE implementation

ned_zeppelin — Fri, 26 Jun 2015 21:23:09 GMT

Huawei Y530 and HTC Desire 610 performs somewhat weaker that the others we have tried. My impression is also that Samsung (S4 in this case) seems like a good performer. Nexus might also be a good choice. Iphone has not been tried yet, but it sounds like that would be a safe bet.

RE: Phones with good BLE implementation

cocoa — Fri, 26 Jun 2015 20:10:37 GMT

iPhone starting from 4S, use CoreBluetooth framework to manage ble.

-c

RE: Phones with good BLE implementation

Hung Bui — Fri, 26 Jun 2015 12:45:13 GMT

@ned: Which phone did you have bad experience ?

From my observation, BLE stack on iOS devices seems to be more stable and well implemented.

Samsung's and Nexus' device (not the earlier Nexus such as Nexus 7, Nexus 4) are pretty stable also.

You can get on most phone/tablet minimum connection interval of 20ms and about 4 packets per connection interval, which brings you 4kB/s.

You may experience lower data throughput when you have more peripheral connect to the same central at the same time. Usually I can see a phone can connect to 3-4 peripherals before it having trouble doing scaning to connect to another one.