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labapart
Unbearably slow connection
Is it just me or is the connection time unbearably slow? Using on custom nrf51 boards, but the ble_scan also connects super slowly to all other ble devices in range. Any way how to speed things up? Tried both sync and async connections.
As you saw in the other threads, I cannot unfortunately reproduce the issue some (most?) people are seeing.
ble_scan has a timeout to wait for the bluetooth controller to scan and find advertising BLE devices around. Reducing this timeout to 0 will use BLE devices previously found.
At the moment, the timeout is set at 4 https://github.com/labapart/gattlib/blob/master/examples/ble_scan/ble_scan.c#L9.
The hardware I use to test: a 32bit x86 Ubuntu 16.04 laptop (the one I am using), a 64bit Ubuntu 14.04 laptop, nRF52 Development Kit (BLE peripheral for gattlib), a 96board Hikey board (BLE peripheral for gattlib). The performance looks similar to mainstream gatttool on all devices.
The scanning is fast, the connection time is super slow! Connect->read/write->disconnect
On 23 Mar 2017, at 12:48, Olivier Martin [email protected] wrote:
As you saw in the other threads, I cannot unfortunately reproduce the issue some (most?) people are seeing.
ble_scan has a timeout to wait for the bluetooth controller to scan and find advertising BLE devices around. Reducing this timeout to 0 will use BLE devices previously found.
At the moment, the timeout is set at 4 https://github.com/labapart/gattlib/blob/master/examples/ble_scan/ble_scan.c#L9.
The hardware I use to test: a 32bit x86 Ubuntu 16.04 laptop (the one I am using), a 64bit Ubuntu 14.04 laptop, nRF52 Development Kit (BLE peripheral for gattlib), a 96board Hikey board (BLE peripheral for gattlib). The performance looks similar to mainstream gatttool on all devices.
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