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I actually got a working thing now. I grabbed a 7404 inverter, put that between pin 5 on the meter, and RX0 on the arduino, hooked pin 3 of the meter up to arduino ground, and pin 2 to +5v. If you got an ethernet shield, you can use the code below. It will open up port 23 on the arduino on a DHCP ad...

I too would be interested in knowing how you did this with the arduino, most importantly how you hooked it up physically. I've done some attempts already, but have thus far not seen any data arrive on the Arduino. However, I assumed that my Iskra meter was based on the DSMR 4.0 standard, but from th...