Communication issue with Adafruit Feather M0 RFM96 LoRa 433 MHz

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quentino
 
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Communication issue with Adafruit Feather M0 RFM96 LoRa 433 MHz

Post by quentino »

Hello !

I have two Adafruit Feather M0 RFM96 LoRa Radio - 433MHz boards.
https://www.adafruit.com/product/3179

I want to establish a communication between these two cards but I can't.

It says RFM96, and the examples on the adafruit site use RFM95, so I've tried adapting an example from the Radiohead library for RFM69 which seems to fit... but to no avail. I can't even initialize!

Can you explain to me the difference between 95 and 96? Just 433 vs 915 MHz?

Do you have a track to adapt the code to the RFM96 version?

Thank you in advance for your feedback

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TI545
 
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Re: Communication issue with Adafruit Feather M0 RFM96 LoRa 433 MHz

Post by TI545 »

My understanding is that, yes, the RFM95 and RMF96 are the "same". Except for the frequency. I have only used the 915 MHz version, but a quick read of the learn.adafruit page tells me you use the same RFM9x library, and of course, must set the frequency to 433 MHz on both the sender and receiver boards.

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alpierce
 
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Re: Communication issue with Adafruit Feather M0 RFM96 LoRa 433 MHz

Post by alpierce »

….Radiohead library for RFM69 which seems to fit.

Did you mean RFM96? The RFM69 is a totally different radio module and software for it definitely won’t work on the RFM95/96.

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adafruit_support_carter
 
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Re: Communication issue with Adafruit Feather M0 RFM96 LoRa 433 MHz

Post by adafruit_support_carter »

There's a basic RX/TX demo here:
https://learn.adafruit.com/adafruit-fea ... m-9x-radio

Is that not working?

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quentino
 
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Re: Communication issue with Adafruit Feather M0 RFM96 LoRa 433 MHz

Post by quentino »

it works, I think the biggest problem for me came from the fact that the transmitter was not connected via USB, with a battery, and the example was waiting for the serial initialization in the setup...!!

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