And the testing phase is over! I've implemented the code from Log 2 into my sketch. You can also take a look at the code in the section Project code. The new sketch can be downloaded in the files section. The D1 Mini should consume less power now, when the watchdog isn't active. I will measure the actual currents on the weekend, when I'm less tired.  I'm really busy at the moment, because I'm doing an advanced training in the field of geoinformation systems (GIS) so please bear with me.