• Hi,

    The MDBT42Q ... is that 50µW @2.5V .. 320µW @16V ?

    Yes - it should be basically the same current draw regardless of the input voltage.

    In the pixl and the MDBT42Q, can the bluetooth stack and radio be turned off completely

    Yes - just NRF.sleep() or NRF.wake(). The BLE stack is still running, but it doesn't cause any wakeups (apart from to calibrate the RTC) if it's not doing anything. The figures from here are probably quite helpful: http://www.espruino.com/Puck.js#power-co­nsumption

    In the pixl, can the display be turned on and off when needed? And if so, would the power drop down to MDBT42Q levels (~50µW) with the display off?

    Yes - Newer builds (after 1v99) have Pixl.setLCDPower(bool) that you can use. Power consumption isn't as good, but it's better.

    Full details at http://forum.espruino.com/conversations/­324612/ but basically:

    • Normal Pixl : 216uA
    • LCD in standby: 66uA

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