Hi and thanks for sharing your project!!! I'm new here and up to now I've been using Fritzing as PCB design tool. I'm impressed with the 3D preview of diptrace. I've imported your project since is almost what I need, but I need some changes: ESP8266 (E-12/E-04) instead or Arduino and Relay instead of SSR.

When I import your project I can't see 3D preview of HLK. How do I import this 3D part? Where's can I find the Songle Relay part that has been shown above?

Just one more question: why do you use NRF24L01 + Arduino if you can do the same and more with ESP8266?? :o/

Thanks again and best regads!!!

P.S.

I'll share my PCB if you wish.