TinyCircuits Forum

TinyCircuits Products => TinyDuino Processors & TinyShields => Topic started by: ijourneaux on October 01, 2014, 02:24:23 AM

Title: Power consumption in various sleep modes
Post by: ijourneaux on October 01, 2014, 02:24:23 AM

I was wondering if anyone had documented the power consumption of the TinyDuino in the various power saving modes?
I have a project where low power consumption is key. The programming I have now on a Pro Micro wakes up when a ball switch shorts pin 3 to ground. A couple of LED blinks when the arduino is activated. THe Pro Micro monitors a capacitance sensor (sparkfun breakout board) and a Hall sensor. When conditions are met the Arduino goes back to sleep until the next time. currently I am using SLEEP_MODE_PWR_DOWN

Title: Re: Power consumption in various sleep modes
Post by: TinyCircuits on October 07, 2014, 11:46:51 PM

The power consumption of the TinyDuino processor board is pretty much exactly as called out in the datasheet for the Atmel ATmega328p, so the datasheet is the best place to calculate the power draw based on the peripherals that are enabled and the power mode being used.

Thanks,

Ken
TinyCircuits

Title: Re: Power consumption in various sleep modes
Post by: jpencausse on March 16, 2015, 04:07:55 AM

Has a newbies I would be very interested in tips / code sample to keep Tinyduino alive for month on battery.

I saw some article doing some "wakeup" stuff to reduce power consumption. And removing some interrupt to save battery.

Thanks

Title: Re: Power consumption in various sleep modes
Post by: Ben Rose on March 16, 2015, 06:01:37 PM

Using sleep mode requires a good understanding of how the atmega328p works, here's some(lots of) information to get you started:

http://electronics.stackexchange.com/questions/49182/how-can-a-let-my-atmega328-run-for-a-year-on-batteries