diff --git a/C++/Arduino/rubberducky/rubberducky.ino b/C++/Arduino/rubberducky/rubberducky.ino
new file mode 100644
index 0000000..cd1a8a6
--- /dev/null
+++ b/C++/Arduino/rubberducky/rubberducky.ino
@@ -0,0 +1,25 @@
+#include <Mouse.h>
+#include <Keyboard.h>
+
+void setup() {
+  Keyboard.begin();
+  Mouse.begin();
+
+  delay(1000);
+
+  Keyboard.press(KEY_LEFT_GUI);
+  Keyboard.press('r');    
+  Keyboard.releaseAll();
+  delay(100);
+  Keyboard.print("cmd");
+  Keyboard.press(KEY_RETURN);
+  Keyboard.releaseAll();
+  delay(100);
+
+  Keyboard.print("tree");
+  Keyboard.press(KEY_RETURN);
+  Keyboard.releaseAll();  
+}
+
+void loop() {}
+
diff --git a/C++/Arduino/transmitter/transmitter.ino b/C++/Arduino/transmitter/transmitter.ino
new file mode 100644
index 0000000..642a754
--- /dev/null
+++ b/C++/Arduino/transmitter/transmitter.ino
@@ -0,0 +1,49 @@
+uint32_t pwmPin = 8;
+uint32_t maxDutyCount = 2;
+uint32_t clkAFreq = 34000000ul;
+uint32_t pwmFreq = 34000000ul; 
+
+uint32_t channel;
+
+void setup() {
+  pinMode(13, OUTPUT);
+  digitalWrite(13, 0);
+  pmc_enable_periph_clk(PWM_INTERFACE_ID);
+  PWMC_ConfigureClocks(clkAFreq, 0, VARIANT_MCK);
+ 
+  PIO_Configure(
+    g_APinDescription[pwmPin].pPort,
+    g_APinDescription[pwmPin].ulPinType,
+    g_APinDescription[pwmPin].ulPin,
+    g_APinDescription[pwmPin].ulPinConfiguration);
+ 
+  channel = g_APinDescription[pwmPin].ulPWMChannel;
+  PWMC_ConfigureChannel(PWM_INTERFACE, channel , pwmFreq, 0, 0);
+  PWMC_SetPeriod(PWM_INTERFACE, channel, maxDutyCount);
+  PWMC_EnableChannel(PWM_INTERFACE, channel);
+  PWMC_SetDutyCycle(PWM_INTERFACE, channel, 1);
+  digitalWrite(13, 1);
+}
+
+void loop() {
+  note(200, 300); // 300Hz for 3000ms
+
+
+  delay(200);
+}
+
+void note(int duration, int f) {
+  int del = (1000000 / f) / 2;
+  int c = (duration * 1000) / del;
+  bool x = true;
+  for (long i = 0; i < c; i++) {
+    if (x) {
+      PWMC_SetDutyCycle(PWM_INTERFACE, channel, 1);
+    }
+    else {
+      PWMC_SetDutyCycle(PWM_INTERFACE, channel, 0);
+    }
+    delayMicroseconds(del);
+    x = !x;
+  }
+}