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Will using a UART/Serial Port Emulation over BLE cause power consumption to go up?

Nordic has provided a good SPP implementation over BLE.

devzone.nordicsemi.com/.../

However, will it raise power consumption and cause BLE to lose its low-power characteristics? If yes, is it because the connection is always on like in Bluetooth Classic SPP?

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  • BLE connections always consume lower power than similar setup in BR/EDR, when you use UART port emulation then two more modules inside the chip are enabled (UART = GPIOTE). UART consumes about 0.2mA current and GPIOTE consumes about 1mA (on revision 3 only IN events consume 1mA and out event consumes only 1 uA)

    look into this post and reply from Stefan for current consumption of GPIOTE devzone.nordicsemi.com/.../

    Apart from this consumption there is no change in the power characteristics of BLE with this setup

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  • BLE connections always consume lower power than similar setup in BR/EDR, when you use UART port emulation then two more modules inside the chip are enabled (UART = GPIOTE). UART consumes about 0.2mA current and GPIOTE consumes about 1mA (on revision 3 only IN events consume 1mA and out event consumes only 1 uA)

    look into this post and reply from Stefan for current consumption of GPIOTE devzone.nordicsemi.com/.../

    Apart from this consumption there is no change in the power characteristics of BLE with this setup

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