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High current consumption during bluetooth connection

Hi, I measure 4 mA current consumption during bluetooth connection. Why? Thanks!

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  • I use nrf51822 and softdevice s130. My system count from 10 to 0 second with a timer. After 10 second, the system enters power manage mode. If a bluetooth connection is detected before entering power manage mode, all timers stop. After disconnection all timer reloads. I measure current with a multimeter connected between power supply and groud. During power manage I measure 3.6 uA, during disconnection 10 uA and during bluetooth connection 4 mA.

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  • I use nrf51822 and softdevice s130. My system count from 10 to 0 second with a timer. After 10 second, the system enters power manage mode. If a bluetooth connection is detected before entering power manage mode, all timers stop. After disconnection all timer reloads. I measure current with a multimeter connected between power supply and groud. During power manage I measure 3.6 uA, during disconnection 10 uA and during bluetooth connection 4 mA.

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