The previous values where approximativ as the current measured over a 0,5sec interval for logging, so repeating the measurements with more time for the "wake" mode and for every component seperately to see what is consuming how much.
In the earlier described configuration
During Processing, Read-out and Logging:
Data Logger Shield: app. 14.6mA
Atmega328-PU at 16Mhz with external oscillator: 12,9mA
The DHT22 Temperature and Humidity sensor: 1,5mA
Total app.: 29mA
During sleep(Power Down with WDT), no sensor read-out:
Data Logger Shield: 0,160mA
Atmega power down with WDT enabled: 0,28mA
The DHT22 Temperature and Humidity sensor (no readout): 0,012mA
Total app.: 0,45mA
All elements in the circuit are powered at 4,9V through a lipo Rider.
Enjoy your week-end!