Hi Razvan, If you put the ATmega128L to extended standby, you should measure ~20uA.
If the cc2420 radio oscillator is still on (but radio is in standby) you should measure a total system power of ~50uA. Martin __________________________________________________ Martin Turon | Crossbow Technology, Inc. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Razvan Musaloiu-E. Sent: Tuesday, June 27, 2006 3:15 PM To: [email protected] Subject: [Tinyos-help] current consumption on MicaZ in tinyos-2.x Hi! I'm trying to verify the current consumption on MicaZ and here are some results that I would like some feedback. :-) The first test I did was to tun the Blink application and measure the current when the leds where off. The result was 0.14mA. The next test was to change the Scheduler.taskLoop code in tos/SchedulerBasicP.nc to put the mote in different power saving modes. The code I used, for entering in Extended Standby mode for example, was: command void Scheduler.taskLoop() { for (;;) { MCUCR = (MCUCR & 0xe3) | 1 << SE | (1 << SM2) | (1 << SM1) | (1 << SM0); sei(); asm volatile ("sleep"); cli(); } The results I got are: - Idle: 3.94mA - ADC NR: 1.35mA - Power Down: 0.13mA - Power Save: 0.13mA - Standby: 0.27mA - Extended Standby: 0.27mA I performed the measurement using a Extech Multimeter [1] and I waited till the current stabilized. I power the mote using a 3V power source. The application I run is an empty one (just one component, MainC). So my question is: can someone confirm/infirm the above values? :-) And one more thing: I have a few MicaZ motes burned with some old code (a monitoring application) that achieves 0.07mA in the sleep mode. I tried to recompile the application with the current tinyos-1.x and the current consumption I got is 0.5mA. In the same tinyos-1.x I also run a Blink application which calls PowerManagement.enable() in the init() and I got 0.14mA. Does anyone has any idea about what is the cause of the difference? :P [1] http://www.radioshack.com/product/index.jsp?productId=2104750 Have a nice day! Razvan ME _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-hel p _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
