If your meter is indeed measuring Amps -- or more appropriately milli-Amps -- the serial connection you describe should work. You may have the meter set to measure volts, in which case it's impedance will be very high and it will act more like an open circuit.
MS Janos Sallai wrote: > The mote will not work if the voltage is that low. Notice, however, > that the voltage of the battery is not decreasing linearly with time > when the battery is discharging. ( See charts for low current draws at > http://www.powerstream.com/AA-tests.htm ) > >> the mote will work from 3.3 - 2 v and then will be shutdown, and can not use >> the >> rest 2 V ??? > The unit of energy is not Volt. It's Watt. Trying to answer your > question: If the battery voltage drops below 2V, the mote can't use > the remaining battery power. > >> Can I change this by using for example modifying voltage supervisor ? How can >> be done for IRIS mote? > What voltage supervisor are you referring to? > >> I've tried to measure the drawn current using DC source and AVOmeter (the >> all devices DC source + mote + AVO are serial connection) but I could not >> get any result. the mote does not turn on ? > You must be doing something wrong. Search the list archive on how to > measure current draw. > > Janos > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help -- Platform: WinXP/Cygwin TinyOS version: 1.x, Boomerang Programmer: MIB510 Device(s): Mica2, MicaZ, Tmote Sensor board: homebrew _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
