diff --git a/command_config.h b/firmware/command_config.h
similarity index 100%
rename from command_config.h
rename to firmware/command_config.h
diff --git a/command_ctrl.c b/firmware/command_ctrl.c
similarity index 100%
rename from command_ctrl.c
rename to firmware/command_ctrl.c
diff --git a/command_ctrl.h b/firmware/command_ctrl.h
similarity index 100%
rename from command_ctrl.h
rename to firmware/command_ctrl.h
diff --git a/command_functions.c b/firmware/command_functions.c
similarity index 100%
rename from command_functions.c
rename to firmware/command_functions.c
diff --git a/firmware/firmware.ino b/firmware/firmware.ino
index d3c0c9f..ebcc27d 100644
--- a/firmware/firmware.ino
+++ b/firmware/firmware.ino
@@ -1,12 +1,12 @@
 /*
  */
 
-#include "si5351.h"
+#include <si5351.h>
 #include "Wire.h"
 
-extern "C" {
+/*extern "C" {
   #include "command_ctrl.h"
-}
+}*/
 
 Si5351 si5351;
 
@@ -22,6 +22,9 @@ void setup()
 
   // Set CLK1 to output 20 MHz
   si5351.set_freq(2000000000ULL, 0ULL, SI5351_CLK1);
+  
+  si5351.output_enable(SI5351_CLK0, 1); // enable clock output 0
+  si5351.drive_strength(SI5351_CLK0, SI5351_DRIVE_2MA); // 2 4 6 8ma
 }
 
 void loop()