Power Dissipation

I need to know the power dissipated at stant t from my android device!

Power (P) = Voltage(V) * Current (I)

I am able to get the value of Battery voltage through registering for an intent receiver to receive the Broadcast for ACTION_BATTERY_CHANGED. But the problem is that Android does not expose the value of current through this SDK interface.

Any suggestion / pointers for getting battery current value? Also please correct me if开发者_C百科 I am wrong.

Deborah

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Its not supported by the SDK but apparently it can be done by reading some values on the I2C bus. Here is a link to the source of CurrentWidget which has found a method to read the current. I'm seems the method of reading the current is different for each device.

http://code.google.com/p/currentwidget/source/browse/trunk/CurrentWidgetLibrary/src/com/manor/currentwidget/library/CurrentReaderFactory.java

good luck!