SPI interface for RFM95 Lora RF module - schematic needed

Hardware Support for the 9XR Pro
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gregm
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SPI interface for RFM95 Lora RF module - schematic needed

Post by gregm »

Hi,

I'm thinking about adding support for RFM95 modules from Hope RF natively in the transmitter (telemetry and/or control) through SPI interface. I don't want to use RF bay and PPM output as this would require additional MCU. Is there a spare SPI port available on the 9xr pro board?

Where can I find schematic for this PCB? In the thread "9XR Pro Wiring Info Q&A" I can see that there is something like Expansion Bus. What is the purpose of this interface?

Is anyone interested in these Lora modules as a RF link?

Regards
Greg

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