Hi,
I have been working on LoRa FeatherWings lately and am in need of a gateway for testing. I am going to make one based on the information in the excellent Single Channel Gateway thread, but I thought I'd like to design my own board as well. Four RFM95/96(W) modules fit nicely on a Raspberry Pi "hat". Here is a render of my board so far. It's not fully routed, but this is the general form-factor I am going for.
The board uses the 40-pin header, so it will be compatible with Raspberry Pi A+/B+/2/3/Zero. Besides the SPI lines, I will also connect NSS, Reset, and DIO0 from each module to GPIO pins on the Pi. The board has SMA connectors for jumper cables to antennas mounted on an enclosure. I will include a few LEDs near the header for power and status indicators.
Basically I am looking for feedback on what you all would like to see on such a board. This will of course be a shared project when it is done. Is such a board useful? Are there any additional pins needed from the RFM modules for the LoRaWAN libraries? Would there be interest in an 8 channel version + UBlox GPS on a larger board?
Thanks,
Dan W.