diff --git a/KBTroll/KBTroll.ino b/KBTroll/KBTroll.ino
index c17c5f2..3ea7772 100644
--- a/KBTroll/KBTroll.ino
+++ b/KBTroll/KBTroll.ino
@@ -1,6 +1,8 @@
 #include "DigiKeyboard.h"
 #include <EEPROM.h>
 //https://github.com/digistump/DigisparkArduinoIntegration/blob/master/libraries/DigisparkKeyboard/DigiKeyboard.h
+//Boardmanager URL: http://digistump.com/package_digistump_index.json
+
 
 //#define LED_BUILTIN 1
 #define address 0
diff --git a/LaserClock/LaserClock.ino b/LaserClock/LaserClock.ino
index b130a97..385d6c7 100644
--- a/LaserClock/LaserClock.ino
+++ b/LaserClock/LaserClock.ino
@@ -1,35 +1,51 @@
-
+/*
+ * author: MrBesen
+ *
+ * Program for a binary laser clock
+ *
+ * Setup: a Button on pin 12, Led pin 13, Laser / LED on pin 2-11 needs to be pwm!
+ *
+ */
 #define pressed digitalRead(12) == LOW
 
+//pins for hour display
 const unsigned char H[] = {8,9,10,11};
+//pins for min display
 const unsigned char M[] = {2,3,4,5,6,7};
 
+//how long takes a minute in ms?
 //const unsigned int mindelay = 60000;
 const unsigned int mindelay = 59500;
 
+//current time
 unsigned char min = 0;
 unsigned char hour = 0;
 
+//last time the minute changed
 unsigned long lastmin;
 
+//remove this line to enable Serial
 #define nolog
 
+//prints the data to the lasers, write(0,0)-> all off, write()-> all on
 void write(unsigned char m = 255, unsigned char h = 255) {
   //write minutes
   for(unsigned char i = 0; i < 6; i++) {
     analogWrite(M[i], (m & (1 << i)) ? 255 : 1);
   }
-  
+  //write hour
   for(unsigned char i = 0; i < 4; i++) {
     analogWrite(H[i], (h & (1 << i)) ? 255 : 4);
   }
   #ifndef nolog
+  //send data to Serial
   Serial.print(hour);
   Serial.print(":");
   Serial.println(min);
   #endif
 }
 
+//add one minute to the time
 void countTime() {
   if(60 == ++min) {
     min = 0;
@@ -56,19 +72,19 @@ void setup() {
  while(!pressed) delay(5);
 
  //setup time
- char mode = 0;
- bool pres = false;
+ char mode = 0;//mode = 0-> set hour, mode = 1 -> set min, mode = 2 -> exit setup
+ bool pres = false;//was button pressed
  unsigned long timeout = millis();
  while(mode < 2) {
   if(pressed) {//button is pressed
     if(!pres) {//button was not pressed before
-      timeout = millis();
+      timeout = millis();//reset timeout
       pres = true;
-      if(mode == 0) {
+      if(mode == 0) {//count hour
         hour ++;
         if(hour == 13)
           hour = 1;
-      } else {
+      } else {//count min
         min ++;
         if(min == 60)
           min = 0;
@@ -78,7 +94,8 @@ void setup() {
   } else {
     pres = false;
   }
-  if(millis() - timeout > 10000) {
+  if(millis() - timeout > 10000) {//timed out
+		//blink 6 times
     for(int i = 0; i < 6; i++) {
       write(0,0);
       delay(300);
@@ -86,7 +103,8 @@ void setup() {
       delay(300);
     }
     write(min, hour);
-    ++mode;
+    ++mode;//next mode
+    //reset timeout
     timeout = millis();
   }
   delay(50);
@@ -107,6 +125,7 @@ void loop() {
     Serial.println(millis()-lastmin >= mindelay);
   #endif
   }
+  //let the led blink
   if(millis()/1000 % 2 == 0) {
     digitalWrite(13, HIGH);
   } else
diff --git a/LaserDraw/LaserDraw.ino b/LaserDraw/LaserDraw.ino
index ebaec54..26f0057 100644
--- a/LaserDraw/LaserDraw.ino
+++ b/LaserDraw/LaserDraw.ino
@@ -1,3 +1,9 @@
+/*
+ * author: MrBesen
+ * A unfinished program to draw text with a laser to the wall.
+ *
+ */
+
 #include <Servo.h>
 
 #define MOTOR_X 6
diff --git a/timer/timer.ino b/timer/timer.ino
index 628cdf8..c0ffa06 100644
--- a/timer/timer.ino
+++ b/timer/timer.ino
@@ -1,7 +1,9 @@
+//code to create a 1 Hz pulse signal
+
 
 void setup() {
   pinMode(13, OUTPUT);
-  pinMode(130, OUTPUT);
+  pinMode(10, OUTPUT);
 }
 
 // the loop function runs over and over again forever