Included the header for the radiohead library. Also added define statments for radio modules pins.

LINX_SOFTWARE-COMMENTED.ino

@@ -8,6 +8,8 @@
 #include <FastLED.h>                 // Library to control the LED ring (WS2812)
 #include <TinyGPS++.h>               // Library to handle GPS data
 #include <SoftwareSerial.h>          // Software serial for GPS communication
+#include <RH_RF95.h>                // 
+
 
 // MAGNETOMETER (LIS2MDL) CONFIGURATION
 Adafruit_LIS2MDL lis2mdl = Adafruit_LIS2MDL(12345);  // Create magnetometer object
@@ -29,6 +31,13 @@ CRGB leds[NUM_LEDS];                 // Array to hold LED colors
 SoftwareSerial gpsSerial(GPS_RX_PIN, GPS_TX_PIN);  // Software serial for GPS
 TinyGPSPlus gps;                     // TinyGPS++ object to process GPS data
 
+// Radio defines 
+#define RFM95_CS    8
+#define RFM95_INT   7
+#define RFM95_RST   4
+#define RF95_FREQ 915.0
+
+
 // Variables
 static int prevHeading = -1;         // Store previous heading to avoid frequent updates
 unsigned long lastUpdate = 0;        // Time tracking for updates