diff --git a/src/Speaker.h b/src/Speaker.h
index afe4f79..e0d8c3b 100644
--- a/src/Speaker.h
+++ b/src/Speaker.h
@@ -77,9 +77,11 @@ void playRTTTL(const char* rtttl) {
 
 
 void playNotificationSound() {
-    playTone(1000, 200);
+    playTone(1000, 150);
     delay(100);
-    playTone(1500, 200);
+    playTone(1500, 150);
     delay(100);
-    playTone(2000, 200);
+    playTone(2000, 150);
+    delay(100);
+    playTone(500, 150);
 }
diff --git a/src/apps/LoRa.cpp b/src/apps/lora.cpp
similarity index 71%
rename from src/apps/LoRa.cpp
rename to src/apps/lora.cpp
index 0349a34..f0ffa13 100644
--- a/src/apps/LoRa.cpp
+++ b/src/apps/lora.cpp
@@ -6,13 +6,11 @@ SX1262 radio = new Module(RADIO_CS_PIN, RADIO_DIO1_PIN, RADIO_RST_PIN, RADIO_BUS
 
 
 bool setupRadio() {
-    digitalWrite(BOARD_SDCARD_CS, HIGH);
+    pinMode(RADIO_CS_PIN, OUTPUT);
     digitalWrite(RADIO_CS_PIN, HIGH);
-    digitalWrite(BOARD_TFT_CS, HIGH);
-    SPI.end();
-    SPI.begin(BOARD_SPI_SCK, BOARD_SPI_MISO, BOARD_SPI_MOSI); //SD
 
     int state = radio.begin(RADIO_FREQ);
+    
     if (state == RADIOLIB_ERR_NONE) {
         Serial.println("Start Radio success!");
     } else {
@@ -73,4 +71,32 @@ bool setupRadio() {
     //radio.setDio1Action(setFlag);
 
     return true;
+}
+
+bool transmit() {
+    int state = radio.transmit("Hello World!");
+
+    // you can also transmit byte array up to 256 bytes long
+    /*
+        byte byteArr[] = {0x01, 0x23, 0x45, 0x56, 0x78, 0xAB, 0xCD, 0xEF};
+        int state = radio.transmit(byteArr, 8);
+    */
+
+    if (state == RADIOLIB_ERR_NONE) {
+        Serial.println(F("Radio tramsmittion successful!"));
+        Serial.print(F("[SX1262] Datarate:\t"));
+        Serial.print(radio.getDataRate());
+        Serial.println(F(" bps"));
+        return true;
+    } else if (state == RADIOLIB_ERR_PACKET_TOO_LONG) {
+        Serial.println(F("Radio packet too long")); // 256 bytes is the maximum packet length
+        return false;
+    } else if (state == RADIOLIB_ERR_TX_TIMEOUT) {
+        Serial.println(F("Radio timeout"));
+        return false;
+    } else {
+        Serial.print(F("Radio error failed, code "));
+        Serial.println(state);
+        return false;
+    }
 }
\ No newline at end of file
diff --git a/src/main.ino b/src/main.ino
index 3e90668..798911e 100644
--- a/src/main.ino
+++ b/src/main.ino
@@ -125,22 +125,26 @@ void wgConnect(const IPAddress& localIp, const char* privateKey, const char* end
 void setup() {
     // Initialize serial communication
     Serial.begin(115200);
+
+    // Wait for the serial monitor to open
+    //while (!Serial);
+
     Serial.println("Booting device...");
 
-    // Turn on the power to the board
+    // Give power to the board peripherals
     pinMode(BOARD_POWERON, OUTPUT); 
     digitalWrite(BOARD_POWERON, HIGH);
 
-    // Turn on power to the screen
+    // Give power to the screen
     pinMode(TFT_BL, OUTPUT);
     digitalWrite(TFT_BL, HIGH);
-    setBrightness(8); // Set the screen brightness to 50%
+    setBrightness(8); // Set the screen brightness to 50%)
 
     // Give power to the SD card
     pinMode(BOARD_SDCARD_CS, OUTPUT);
     digitalWrite(BOARD_SDCARD_CS, HIGH);
     pinMode(BOARD_SPI_MISO, INPUT_PULLUP);
-    SPI.begin(BOARD_SPI_SCK, BOARD_SPI_MISO, BOARD_SPI_MOSI); //SD
+    SPI.begin(BOARD_SPI_SCK, BOARD_SPI_MISO, BOARD_SPI_MOSI);
     
     // Turn on power to the radio
     pinMode(RADIO_CS_PIN, OUTPUT);
@@ -163,7 +167,7 @@ void setup() {
 
     // Initialize the speaker
     setupI2S(); // Do we want to keep this open or uninstall after each use to keep resources free?
-    const char* rtttl_boot = "TakeOnMe:d=4,o=4,b=450:8f#5,8f#5,8f#5,8d5,8p,8b,8p,8e5,8p,8e5,8p,8e5,8g#5,8g#5,8a5,8b5,8a5,8a5,8a5,8e5,8p,8d5,8p,8f#5,8p,8f#5,8p,8f#5,8e5,8e5,8f#5,8e5,8f#5,8f#5,8f#5,8d5,8p,8b,8p,8e5,8p,8e5,8p,8e5,8g#5,8g#5,8a5,8b5,8a5,8a5,8a5,8e5,8p,8d5,8p,8f#5,8p,8f#5,8p,8f#5,8e5,8e5";
+    const char* rtttl_boot = "TakeOnMe:d=4,o=4,b=500:8f#5,8f#5,8f#5,8d5,8p,8b,8p,8e5,8p,8e5,8p,8e5,8g#5,8g#5,8a5,8b5,8a5,8a5,8a5,8e5,8p,8d5,8p,8f#5,8p,8f#5,8p,8f#5,8e5,8e5,8f#5,8e5,8f#5,8f#5,8f#5,8d5,8p,8b,8p,8e5,8p,8e5,8p,8e5,8g#5,8g#5,8a5,8b5,8a5,8a5,8a5,8e5,8p,8d5,8p,8f#5,8p,8f#5,8p,8f#5,8e5,8e5";
     playRTTTL(rtttl_boot);
 
     // Setup the WiFi