Added hello world transmitter and recevier code based on RF24 lib

.gitignore

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+Arduino/libraries/*

Arduino/receiver_code/receiver_code.ino

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+#include <SPI.h>
+#include <nRF24L01.h>
+#include <RF24.h>
+
+RF24 radio(3, 2); // CE, CSN
+
+const byte address[6] = "00001";
+
+void setup() {
+  Serial.begin(9600);
+  
+  radio.begin();
+  radio.openReadingPipe(0, address);
+  radio.setPALevel(RF24_PA_MAX);
+  radio.startListening();
+}
+
+void loop() {
+  if (radio.available()) {
+    char text[32] = "";
+
+    radio.read(&text, sizeof(text));
+   
+    Serial.print("recieved: ");
+    Serial.println(text);
+  }
+}

Arduino/transmitter_code/transmitter_code.ino

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+#include <SPI.h>
+#include <nRF24L01.h>
+#include <RF24.h>
+
+RF24 radio(3, 2); // CE, CSN
+
+const byte address[6] = "00001";
+
+void setup() {
+  Serial.begin(9600);
+  
+  radio.begin();
+  radio.openWritingPipe(address);
+  radio.setPALevel(RF24_PA_MAX); 
+  radio.stopListening();
+}
+
+void loop() {
+  const char text[] = "Hello World";
+  
+  radio.write(&text, sizeof(text));
+}