diff --git a/README.md b/README.md
index 6a69265..1b519bf 100644
--- a/README.md
+++ b/README.md
@@ -9,8 +9,15 @@ This piece of garbage receives commands via mqtt and emits NEC decoded commands
  - Wemos D1 Mini
  - IR Receiver Diode TSOP38238
  - Some IR Diode
+ - BC337 Transistor
 
 ## Used Software
 
 Heavily based on https://github.com/markszabo/IRremoteESP8266
 
+## Sketch
+
+Notice, that there are different pin layouts for the TSOP\* Diodes
+
+![Sketch](sketch.png)
+
diff --git a/mqtt_ir.ino b/mqtt_ir.ino
index 07ddb0a..af29f91 100644
--- a/mqtt_ir.ino
+++ b/mqtt_ir.ino
@@ -63,7 +63,7 @@ int saveCommand(char * command, uint8_t length, uint32_t code){
 }
 
 int saveStore(){
-  EEPROM.begin(512);
+  EEPROM.begin(512); // 4096 Possible
   EEPROM.put( 0, store ); // address of begin of eeprom "0"
   delay(200);
   EEPROM.commit();  // Only needed for ESP8266 to get data written
@@ -102,8 +102,6 @@ void setup_wifi() {
   */
 }
 
-uint16_t input[100] = {0};
-
 int check(char * buf, int length){
   char * a = buf;
   for (;a-buf < length;a++){
diff --git a/sketch.fzz b/sketch.fzz
new file mode 100644
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diff --git a/sketch.png b/sketch.png
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