diff --git a/arduino/licht-test/sketch_sep6a/sketch_sep6a.ino b/arduino/licht-test/sketch_sep6a/sketch_sep6a.ino
index 238a253..6fa2778 100644
--- a/arduino/licht-test/sketch_sep6a/sketch_sep6a.ino
+++ b/arduino/licht-test/sketch_sep6a/sketch_sep6a.ino
@@ -5,6 +5,8 @@
  *
  * Tutorial page: https://arduinogetstarted.com/tutorials/arduino-light-sensor
  */
+
+ //zegt dat het variable LDR wijst naar pin 12
 #define LDR 12
 void setup() {
   // initialize serial communication at 9600 bits per second: