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AVR based power usage monitor

Posted on Sunday, December 12th, 2010 in AVR, builds, measurement by the machinegeek


Dan Stahlke built an open source homebrew power usage meter based on the Atmega168. The project stores the measurements on an SD card. Just might be the ticket for monitoring holiday display power usage.

Via Electronics-lab.

This entry was posted on Sunday, December 12th, 2010 at 2:43 pm and is filed under AVR, builds, measurement. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

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Recent Comments

  • Pekka Akselin: This is ridiculous!? :-) We are back at 256(!) byte EPROMs that needed multiple, a handful, of voltages to run! :-(
  • KH: Let's try a back-of-envelope calc balancing energies. From MCP1700 datasheet, there are graphs for a 200mA load step. Estimate the energy shortfall as 12uJ. Say...
  • Daniel: It's been a week and my comment is still awaiting moderation. Apparently the CIA doesn't want their involvement known?
  • KH: Agree, so okay, I guess he must have learned from somewhere. 100nF and 1000uF is so far apart, that was jarring; it's more magic incantation...
  • Max: I have a suspicion the hefty electrolytic cap might be some sort of cargo cult carry-over from other RF-based projects - for instance, I've seen...