Is there a schematic of the NRF24 board?

[Yveaux]

@ServiceXp Very interesting teardown! Apparently it uses a flex-pcb for the antenna -- that's one solution you don't see very often.
Power supply is 'standard' transformer-less capacitor/resistor design.

[marceltrapman]

@ServiceXp Thanks it looks pretty much the same as my AEOTEC range extenders.
The only difference is 220v :)

[cribben]

@ivan.todorovich

Hi! See this examples how to power it from 220V without tranformer.
http://www.designercircuits.com/DesignNote1a.pdf