Connection Interval 's relationship with Data rate and power consumption

RE: Connection Interval 's relationship with Data rate and power consumption

Ziyao Zhou — Tue, 20 May 2025 06:58:59 GMT

Thank you for your information

RE: Connection Interval 's relationship with Data rate and power consumption

Kenneth — Mon, 19 May 2025 12:39:46 GMT

Hi,

In a realistic end product use case it's very likely some kind of interference (e.g. other BLE, classic BT, Wifi, and other 2.4GHz protocol or interference sources (e.g. microwave oven or USB3.0 ports). All these source may cause packet loss, and in BLE if any error is found in the packet, it will wait until next connection interval before retransmitting and continue sending packets. This means that packet loss will have a high impact on the throughput if you use long connection interval, that is why I always recommend having the lowest possible connection interval, because even though under ideal conditions longer connection interval may seem better, in realistic scenarios the short interval will have better stable results.

Kenneth

RE: Connection Interval 's relationship with Data rate and power consumption

Ziyao Zhou — Sun, 18 May 2025 12:22:14 GMT

Thank you for your information! Yes, I am using BLE to do video transfer. So that if I use low throughput appliacation the interval will have difference?

RE: Connection Interval 's relationship with Data rate and power consumption

Turbo J — Sun, 18 May 2025 09:40:57 GMT

Careful: BTLE is not intended for high data rates.

Your throughput is only achievable with close to 100% radio on-time, thus you will see basically the same current consumtion over a large parameter range.

Does your application really need those rates? Then BTLE may not be the best choice.