There was a threat started on the old forum about Xiaomi Hacks.
Thanks to @bullseye1977
“Pretty new to all the homey possibilities. What i created is a cheap proof of concept zigbee wall switch.
Bought a “puls drukker” at the local Hornbach and soldered the switch to the internal contacts of the Xiaomi Aqara Smart Wireless Switch. Now i can select 4 scenes with this wall switch (on - off - dim 20% - sexy time) of my phillips Hue / Ikea lighting.
Nice thing it fits my current wall switches and i have one uniform look on the wall.”
There where a lot of people interested in the schema to connect the “puls drukker”.
I’ve take a multimeter and came with this conclusion:
Connect the “puls drukker” on the two holes.