arduino SX1276 about beelan-lorawan HOT 13 CLOSED

Registers in RFM95 and SX1276 datasheets seems to be the same it should work. In fact, RAK4260 module (I used to test) has SX1276 , not a hole FRM95 module.
You will just need to check pinout.

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thank, i chekc it now , and i see that, i will try it,

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it seems it kind of works with the "send-class-A-OTAA" example and my equipment :

• Chip / end node LoRa : Heltec Lora32 chip (ESP32 + SX1276)
• Contry : EUROPE 868MHz (I changed config.h to set #define EU_868)
• LoRaWAN gateway : (Local) Indoor Dragino LSP8
• LoRaWAN server : (Local) ChripStack environment on a Raspberry Pi (Ubuntu Server) ...

I said "kind of" because :

• it connect fast the first time (join) but takes times (about 30min) after a reboot
• half of the message the lora node send is lost :(

I changed this in the example code :

const sRFM_pins RFM_pins = {
  .CS = 18,
  .RST = 14,
  .DIO0 = 26,
  .DIO1 = 35,
  .DIO2 = 34,
  .DIO5 = 40, //Unidentified pin, so I wrote a random and non pin value
};
...
  SPI.begin(5,19,27,18); //not sure if usefull
  if(!lora.init()){
    Serial.println("RFM95 not detected");
    delay(5000);
    return;
  }

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so, I need to connect spi bus and io pins, do you have schematic example for this ?

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You need pins SPI port and pins for SX1276 or RFM95

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my question is to know if this pin connections is good:

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sorry I dont have schematic example for this, my Heltec Lora32 v2 is a chip with both ESP32 and LoRa together, see this link :

• https://community.hiveeyes.org/uploads/default/original/2X/e/eda042713108809e3511e822a1aa4e582ee70ebc.png

What I can say is

• The code seems to work even without this line SPI.begin(5,19,27,18);
• I dont have this pin in my chip, so I write a non pin value .DIO5 = 40,
• I think I lost half of the messages because of my LoRa gateway (it seems to reboot every 30s) instead of this library

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HI,
I also tested RFm95w and it's ok for connextion to TTN, but I have only 1 on that can send data, another modules only connect without sending data with same software, and 4 minutes for connections.
Do you know where is problem of it ?
Thank
eric

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review your chosen communication channels

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I found another issue, maybe it will help
My Heltec Lora32 v2 didn't succeed to join if I set this line : lora.setDataRate(SF9BW125);
But if I remplace SF by another value, for example 8 (lora.setDataRate(SF8BW125);) now it works
And it works event if after join, I set the SF value to 9 again

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