[Tinyos-help] Power consumption measurement

[Anton]

Hi,

as for the correlation of the events on the mote with measurements, I 
used external trigger input of a multimeter Agilent 34411A. I connected 
a pin of the microcontroller to that input, my application generated a 
pulse on the pin (using the interface HplMsp430GeneralIO) and the 
multimeter started to measure. In this way I knew that the measurements 
were taken starting from a particular time instant corresponding to a 
particular state of the mote operation. I guess it can be done with an 
oscilloscope too.

Also, with an oscilloscope you can take measurements on one channel, 
while another channel can be used to see some pulses generated by your 
program on a microcontroller pin at the "boundaries" between different 
phases of the program execution. Thus you can correlate measurements and 
events on the mote by comparing the two waveforms on the oscilloscope 
screen.