Pinout of module when using it as a remote
Here is the pinout of the 5 button remote.

Here is the pinout of the ON/OFF remote, if you flash its firmware to the module.

Buttons are pushed by pulling the pin the GND with a 487 ohm resistor. Except paring, which is pushed by short to GND.
LED is powered by a 2N7002ET MOSFET. If the Draco module is used, the MOSFET can be omitted.

The pinout of the module when used in the mains outlet:

Thanks for the information!
Can you confirm its part number? The E1524 remote is already in the overview, but it seems that ikea now sells it as the E1810 (not sure though).
The new remotes contains the Draco module.
Is some one knowing wot the TP1 and TP2 is connected to the module ? I was hoping its the debug pins for SWD so not need using brute force for dumping the firmware but i have not testing it then i have not opening my remotes and dont like destroying them.