Fix: Beelan DevNonce issue #179

ElectronicCats · Feb 14, 2024 · 9d91e93 · 9d91e93
1 parent a5fc055
commit 9d91e93
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Showing 2 changed files with 10 additions and 3 deletions.
diff --git a/src/arduino-rfm/LoRaMAC.cpp b/src/arduino-rfm/LoRaMAC.cpp
@@ -480,12 +480,15 @@ void LORA_Receive_Data(sBuffer *Data_Rx, sLoRa_Session *Session_Data, sLoRa_OTAA
 */
 static void Generate_DevNonce(unsigned char *DevNonce)
 {
+#ifdef ESP32
+	// Use the built-in random number generator of ESP32 to obtain a random value
+	esp_fill_random(DevNonce, 2); // Fill the first 2 bytes of DevNonce with random values
+#else
 	unsigned int RandNumber;
-
 	RandNumber = random(0xFFFF);
-
 	DevNonce[0] = RandNumber & 0x00FF;
 	DevNonce[1] = (RandNumber >> 8) & 0x00FF;
+#endif
 }
 /*
 *****************************************************************************************

diff --git a/src/arduino-rfm/lorawan-arduino-rfm.cpp b/src/arduino-rfm/lorawan-arduino-rfm.cpp
@@ -44,7 +44,11 @@ bool LoRaWANClass::init(void)
     // Lora Setting Class
     dev_class = CLASS_A;
     // Random seed
-    randomSeed(analogRead(0));
+    #ifdef ESP32
+        randomSeed(esp_random());
+    #else
+        randomSeed(analogRead(0));
+    #endif
 
     // Status
     RFM_Command_Status = NO_RFM_COMMAND;