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

README.md

@@ -15,7 +15,14 @@
 
 ### Main Project 
 
-**To be added**
+**Using Arduino IDE**
+
+1. Install the Arduino IDE if not installed.
+2. Using the library manager in the IDE install the dependencies.
+3. Connect the micro-controller
+4. Select your development boards version and connection under the drop-down.
+5. Click the Upload button to flash the program.
+
 
 ### Tests 
 
@@ -73,4 +80,7 @@ tree -L 1
 
 6 directories, 7 files
 ```
+## Project Dependencies
 
+- RadioHead RFM9x Library
+- TinyGPS++