am Donnerstag, 15. September 2016 um 11:34 hast du geschrieben:
> Wires connected directly to the gpio ports of the raspberry pi.

Directly from the s0-output of the electric meter? Bad idea.
The voltage (3.3V) of the GPIO ist to low to get secure signals from s0.

> As I said both wires give the signals, I checked that by exchanging wires.

I guess you killed GPIO 22.

> Also I tried different gpio ports.

Go on, use GPIO 18 instead of 22.

mfg Daniel

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