Pi-Somfy
Based on https://github.com/Nickduino/Somfy_Remote
It's a script to open and close your Somfy (and SIMU) blinds using the RTS (or Hz) protocol with a Raspberry Pi and an RF emitter. Your emitter has to use the 433.42 MHz frequency; the simplest might be to use a common 433.93 MHz one and to swap its oscillator for a 433.42 MHz one bought separetely.
The script will use pigpiod daemon to open and close Somfy (or SIMU) blinds. The remote address and rolling code (incremented every time you send a frame) are stored in a specific file for every remote.
Usage
# somfy.py [-h] --blind BLIND --action {open,close,stop,prog}
# python somfy.py --blind 1 --action close