How often a BLE characteristic can be updated?

RE: How often a BLE characteristic can be updated?

SwRa — Mon, 01 Aug 2022 13:38:58 GMT

Hello,

[quote user="masterLee"]Does this mean that a characteristic value can be updated at that speed more or less in case of GATT notification?[/quote]

No.. The speed to update a characteristic depends on the connection interval and the number of notifications that can be send per connection event... Using a larger packet size to get higher throughput.. Kindly take a look at this https://infocenter.nordicsemi.com/topic/sds_s140/SDS/s1xx/ble_data_throughput/ble_data_throughput.html?cp=4_7_4_0_16

You could also take a look at the ATT_MTU Throughput example to get to know how different connection parameters affects the throughput..

Best Regards,

Swathy

RE: How often a BLE characteristic can be updated?

masterLee — Fri, 22 Jul 2022 14:45:51 GMT

Hi,

yes I know what throughput is. Also I wrote 100kBps not kbps. But my question remains. Does this mean that a characteristic value can be updated at that speed more or less in case of GATT notification?

Thank you

RE: How often a BLE characteristic can be updated?

SwRa — Fri, 22 Jul 2022 13:15:36 GMT

Hello,

Throughput is the rate of data that is processed and transferred. 100 kbps means that 12500 packets(bytes) are being transferred in a second ideally.. You could go through the link provided to get more understanding: novelbits.io/.../

Regards,

Swathy