Python script to read a smart meter P1 poort data and store in text file
Hardware setup
Raspberry Pi Zero W / Raspbian
FTDI FT232RL board (https://www.tinytronics.nl/shop/nl/communicatie/usb/ft232rl-3.3v-5v-ttl-usb-serial-port-adapter?search=ttl%20usb)
Use https://www.ftdichip.com/Support/Utilities.htm#FT_PROG to invert RX port
Using RJ11(4) custom cable with pull up resistor --> see schema