I was searching the web once more for a solution for my Promax socket switches, product code 75.006.14 (Store: Action in NL). Seems the guys at Homey have developed code to support these switches, which is available on Github. Any protocol @developer who would like to have a look and see if this can be re-used for Pimatic-homeduino? You would save me a lot of frustration if you would succeed! See https://github.com/athombv/nl.action/issues/1, and https://github.com/athombv/nl.action/blob/master/433_generator/promax/drivers/promax.js to get a headstart.
Mucho thanks in advance!