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I have a device that is configured as Bluetooth peripheral to send some IMU data to a smartphone. I log the data out both on the peripheral device and on the smartphone app.
When I connect using an iPhone 8, the exchange is quite immediate – data sent are almost logged at the same time in both sides. But, when I connect using an Android device (I tested Nexus 5 and Zenfone Max Pro M1), the log on the smartphone side is done approximately 400ms after the log on the peripheral side is done. This is huge latency! And I want to reduce it.
I suspected it to be related to connection parameters. So I changed it to the following:
- Min connection interval: 12 (15 ms)
- Max connection interval: 24 (30 ms)
- Slave latency: 0
- Supervision timeout: 200 (2000 ms)
This works fine on iPhone, but, still has noticeable latency on Android.
Are there other factors that cause such a latency?
android bluetooth
edited yesterday
Scott
16.2k113990
asked yesterday
Mahmoud MasmoudiMahmoud Masmoudi
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I have a device that is configured as Bluetooth peripheral to send some IMU data to a smartphone. I log the data out both on the peripheral device and on the smartphone app.
When I connect using an iPhone 8, the exchange is quite immediate – data sent are almost logged at the same time in both sides. But, when I connect using an Android device (I tested Nexus 5 and Zenfone Max Pro M1), the log on the smartphone side is done approximately 400ms after the log on the peripheral side is done. This is huge latency! And I want to reduce it.
I suspected it to be related to connection parameters. So I changed it to the following:
- Min connection interval: 12 (15 ms)
- Max connection interval: 24 (30 ms)
- Slave latency: 0
- Supervision timeout: 200 (2000 ms)
This works fine on iPhone, but, still has noticeable latency on Android.
Are there other factors that cause such a latency?
android bluetooth
edited yesterday
Scott
16.2k113990
asked yesterday
Mahmoud MasmoudiMahmoud Masmoudi
11
New contributor
Mahmoud Masmoudi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I have a device that is configured as Bluetooth peripheral to send some IMU data to a smartphone. I log the data out both on the peripheral device and on the smartphone app.
When I connect using an iPhone 8, the exchange is quite immediate – data sent are almost logged at the same time in both sides. But, when I connect using an Android device (I tested Nexus 5 and Zenfone Max Pro M1), the log on the smartphone side is done approximately 400ms after the log on the peripheral side is done. This is huge latency! And I want to reduce it.
I suspected it to be related to connection parameters. So I changed it to the following:
- Min connection interval: 12 (15 ms)
- Max connection interval: 24 (30 ms)
- Slave latency: 0
- Supervision timeout: 200 (2000 ms)
This works fine on iPhone, but, still has noticeable latency on Android.
Are there other factors that cause such a latency?
android bluetooth
edited yesterday
Scott
16.2k113990
asked yesterday
Mahmoud MasmoudiMahmoud Masmoudi
11
New contributor
Mahmoud Masmoudi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I have a device that is configured as Bluetooth peripheral to send some IMU data to a smartphone. I log the data out both on the peripheral device and on the smartphone app.
When I connect using an iPhone 8, the exchange is quite immediate – data sent are almost logged at the same time in both sides. But, when I connect using an Android device (I tested Nexus 5 and Zenfone Max Pro M1), the log on the smartphone side is done approximately 400ms after the log on the peripheral side is done. This is huge latency! And I want to reduce it.
I suspected it to be related to connection parameters. So I changed it to the following:
- Min connection interval: 12 (15 ms)
- Max connection interval: 24 (30 ms)
- Slave latency: 0
- Supervision timeout: 200 (2000 ms)
This works fine on iPhone, but, still has noticeable latency on Android.
Are there other factors that cause such a latency?
android bluetooth
android bluetooth
edited yesterday
Scott
16.2k113990
asked yesterday
Mahmoud MasmoudiMahmoud Masmoudi
11
New contributor
Mahmoud Masmoudi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited yesterday
Scott
16.2k113990
asked yesterday
Mahmoud MasmoudiMahmoud Masmoudi
11
New contributor
Mahmoud Masmoudi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited yesterday
Scott
16.2k113990
edited yesterday
Scott
16.2k113990
edited yesterday
Scott
16.2k113990
16.2k113990
asked yesterday
Mahmoud MasmoudiMahmoud Masmoudi
11
New contributor
Mahmoud Masmoudi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked yesterday
Mahmoud MasmoudiMahmoud Masmoudi
11
asked yesterday
Mahmoud MasmoudiMahmoud Masmoudi
11
11
New contributor
Mahmoud Masmoudi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Mahmoud Masmoudi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Mahmoud Masmoudi is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
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