Show HN: Record, plot and replay arbitrary 433mhz signals using a Raspberry Pi

I made a Python command-line tool to record and replay arbitrary 433mhz signals. This allows to clone key fobs, garage door openers etc. In addition to the recording/replaying, it also supports graphical plotting of the recorded signals. I use it to control my garage door and some 'dumb' remote controlled power sockets. Feel free to try it out.