diff --git a/sensors/ky018_data.json b/sensors/ky018_data.json
new file mode 100644
index 0000000..f5d81ab
--- /dev/null
+++ b/sensors/ky018_data.json
@@ -0,0 +1,171 @@
+{
+    "id": "lightSensorDigital",
+    "type": "light",
+    "unit": "state",
+    "reading": [
+        {
+            "ts": 1748449834,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449836,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449838,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449840,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449842,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449844,
+            "state": "hell"
+        },
+        {
+            "ts": 1748449846,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449848,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449850,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449852,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449854,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449856,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449858,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449860,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449927,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449929,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449931,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449933,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449935,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449937,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449939,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449941,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449943,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449945,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449947,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449953,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449955,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449957,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449959,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449961,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449963,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449965,
+            "state": "dunkel"
+        },
+        {
+            "ts": 1748449967,
+            "state": "hell"
+        },
+        {
+            "ts": 1748449969,
+            "state": "hell"
+        },
+        {
+            "ts": 1748449971,
+            "state": "hell"
+        },
+        {
+            "ts": 1748449973,
+            "state": "hell"
+        },
+        {
+            "ts": 1748449992,
+            "state": "hell"
+        },
+        {
+            "ts": 1748449994,
+            "state": "hell"
+        },
+        {
+            "ts": 1748449996,
+            "state": "hell"
+        },
+        {
+            "ts": 1748449998,
+            "state": "hell"
+        },
+        {
+            "ts": 1748450000,
+            "state": "hell"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/sensors/lichtwiderstandsSensor.py b/sensors/lichtwiderstandsSensor.py
new file mode 100644
index 0000000..876b2dc
--- /dev/null
+++ b/sensors/lichtwiderstandsSensor.py
@@ -0,0 +1,57 @@
+import time
+import json
+import os
+import board
+import digitalio
+
+json_file = "ky018_data.json"
+MAX_ENTRIES = 3000
+
+light_pin = digitalio.DigitalInOut(board.D17)
+light_pin.direction = digitalio.Direction.INPUT
+
+data_template = {
+    "id": "sensor_004",
+    "type": "light",
+    "unit": "state", 
+    "reading": []
+}
+
+def load_data():
+    if os.path.exists(json_file):
+        with open(json_file, 'r', encoding='utf-8') as f:
+            return json.load(f)
+    else:
+        return data_template.copy()
+
+def save_data(data):
+    with open(json_file, 'w', encoding='utf-8') as f:
+        json.dump(data, f, indent=4, ensure_ascii=False)
+
+def capture_and_store(state):
+    timestamp = int(time.time())
+    data = load_data()
+
+    data["reading"].append({
+        "ts": timestamp,
+        "state": state
+    })
+
+    if len(data["reading"]) > MAX_ENTRIES:
+        data["reading"] = data["reading"][-MAX_ENTRIES:]
+
+    save_data(data)
+
+try:
+    while True:
+        if light_pin.value:
+            light_state = "hell"
+        else:
+            light_state = "dunkel"
+
+        print(f"Lichtzustand: {light_state}")
+        capture_and_store(light_state)
+        time.sleep(2)
+
+except KeyboardInterrupt:
+    print("Programm beendet.")
\ No newline at end of file