328P / Pro mini Power Consumption

Official Hardware Classic Pro Mini
1

Hi, I'm trying to choose the right board for my next aplication where I need the lowest power consumption together with a very fast wake up
I have discovered the Standby Mode thats keep ON the oscilator allowing a very fast wake up in combination with very low consumption, however this consumtion is not reflected in datasheet

  • Active Mode 8MHz: 10 mA
  • Idle Mode 8MHz: 1.6 mA
  • Power Down Mode: 66µA

Has anyone trying the power consumption in Standby mode? Looking at Google I only get the same (wrong?) table

  • SLEEP_MODE_IDLE: 15 mA
  • SLEEP_MODE_ADC: 6.5 mA
  • SLEEP_MODE_PWR_SAVE: 1.62 mA
  • SLEEP_MODE_EXT_STANDBY: 1.62 mA
  • SLEEP_MODE_STANDBY : 0.84 mA
  • SLEEP_MODE_PWR_DOWN : 0.36 mA
2

If you remove the voltage regulator and the power LED from the Pro Mini, you will have a "bare bones" Arduino.

Follow this tutorial to get the lowest power consumption possible (about 100 nA in Power_Down mode, IF there is a genuine ATmega328p on the board).

However, the chances are that it is not a genuine ATmega328p.

3

A Pro Mini is very low cost.

If you want accurate real world figures for power consumption, then I would suggest buying one, and measuring the power consumption for real.

4

My ask was about Standby Mode, in that same link it's say about 0.84 mA that seems to me unreal

Thanks for the hint about the chip, I have read about it and I will buy a SparkFun model so I understand it's going to be a genuine chip

5

Gammon measured that for a genuine ATmega328p, and I and others have independently verified most, if not all of his measurements.

6

I can recommend the following for such measurements.

7

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