I’m trying to make my first node by using an Arduino Pro Mini and the RFM95W. I’d like to avoid soldering the RFM95W to a board, so I was thinking of soldering the wires directly to the RFM95W, but I have a few questions about it:
- I have seen most PCBs designed for the RFM95W include capacitors. Is there any downside to not including them?
- What would be the best way to solder an SMA antenna directly to the RFM95W? I basically see two options: using an SMA connector and soldering one gnd terminal and the signal terminal to the board (would that fit dimension-wise? is it a problem to only solder one of the two side pins to gnd?), or using an SMA to u.Fl IPX cable, such as , and soldering it (would there be any relevant signal loss/impedence mismatch problems related to this?)
I also looked for PCBs with an smd SMA connector on one side, and throughhole signal and gnd pins on the other, but I could find anything already designed. Would this make sense too?
Well, that’s about it for now. I’m really excited for this technology, and hope I can make some interesting stuff.
Thanks for any help you can give! It’s really appreciated