[Tinyos-devel] more bugging about current consumption on MicaZ in tinyos-2.x

[Philip Levis]

On Jul 19, 2006, at 10:30 AM, Joe Polastre wrote:

>> MicaZ deep sleep draw: 3-5uA
>> Telos deep sleep draw: 7uA
>
> See my previous message.  You should lift the Vcc pin on the
> microcontroller to accurately measure the MCU current draw, which will
> be about 0.7uA in deep sleep.  The rest is due to having to isolate
> the USB circuitry (which isn't present on a MicaZ)
>
> Now, of course, you wouldn't deploy the Telos, as is with USB, in a
> large scale situation.  Too big and not cost effective.

I was trying to measure the *platform* current draw, not the MCU.  
Clearly you could create a custom platform for long-term deployments,  
but I was wondering how platforms --- off the shelf --- match up.

Phil