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:
