Jump to content

Search the Community

Showing results for tags 'low-power'.

More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


  • News
    • Announcements
    • Suggestions
    • New users say Hi!
  • Spotlight!
    • Sponsor Spotlight
    • Sponsor Giveaways
  • Energia
    • Energia - MSP
    • Energia - TivaC/CC3XXX
    • Energia - C2000
    • Energia Libraries
  • MSP Technical Forums
    • General
    • Compilers and IDEs
    • Development Kits
    • Programmers and Debuggers
    • Code vault
    • Projects
    • Booster Packs
    • Energia
  • Tiva-C, Hercules, CCXXXX ARM Technical Forums
    • General
    • SensorTag
    • Tiva-C, Hercules, CC3XXX Launchpad Booster Packs
    • Code Vault
    • Projects
    • Compilers and IDEs
    • Development Kits and Custom Boards
  • Beagle ARM Cortex A8 Technical Forums
    • General
    • Code Snippets and Scripts
    • Cases, Capes and Plugin Boards
    • Projects
  • General Electronics Forum
    • General Electronics
    • Other Microcontrollers
  • Connect
    • Embedded Systems/Test Equipment Deals
    • Buy, Trade and Sell
    • The 43oh Store
    • Community Projects
    • Fireside Chat
  • C2000 Technical Forums
    • General
    • Development Kits
    • Code Vault
    • Projects
    • BoosterPacks


There are no results to display.

Find results in...

Find results that contain...

Date Created

  • Start


Last Updated

  • Start


Filter by number of...


  • Start



Website URL





Found 2 results

  1. For those that don't follow the 43oh Blog: @@Fmilburn published a great write-up about how to use EnergyTrace to measure and improve power consumption and battery life of an Energia sketch. The article includes a nice demonstration of the effectiveness of sleep() vs. delay(). http://43oh.com/2015/09/how-to-measure-an-energia-applications-power-usage-with-energytrace/ He also shows how an EnergyTrace compatible LaunchPad (e.g. FR5969) can be used to measure power consumption of an older LaunchPad (e.g. G2553). This probably works for standalone projects as well.
  2. Finally I'll share some of my binary watch project with you guys. Some features: - 11 LEDs charlieplexed on 2x 3 I/O pins (6 LEDs per 3 I/O lines, one LED not placed) - As low power as can get (900 nA in stand-by) - 14-pin value lin MSP430 - watch crystal sourced (32768Hz) - two buttons (of which one is on the reset line) - well under 2kB code (1.6kB) The "display refresh rate" is 512Hz, which makes the "pixel refresh rate" at 85Hz, a comfortable rate for the eye. The WDT is used as a minute timer (2 second hardware, 30 iterations in software), sourced from the crystal, I go down to LPM3 then and can run at 900 nanoAmps. During display I run in LPM1 from which I wake 512 times per second to update the LED display. The reset line is reused as an input line for one of my two buttons, using the NMI I can use it as a reliable button input pin using some nifty software tricks. I use the reset line as button input because I ran out of I/O (10 available: 6 for the display, 1 for a button, 2 for the crystal and 1 for a future buzzer) I'm busy desiging a PCB for this too (not a booster, a feature complete board). Using a coincell/buttoncell battery I can fit all my components (except the battery and buzzer) on a 11x39mm PCB, targeting for 20x20mm now.
  • Create New...