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Powering Sensor with GPIO on NRF51822

Hello,

i would like to turn off a sensor completely when unused and thought of powering it through the GPIO of the Controller. I wondered if it is recommended or do the pins have a bad efficiency? Could it be worth the 1µA i am saving? The sensor needs max. 40µA and the other one max 380µA. So if, i could still use the standard mode.

Thx for your answer, Matthias

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  • Hello and thanks for the answer,

    Annim, i thought the same, but as the sensors dont even need more energy than the pin can affort the mosfet would be useless.

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