diff --git a/src/officesense_pi/src/core/redis.ts b/src/officesense_pi/src/core/redis.ts
deleted file mode 100644
index c9b1944..0000000
--- a/src/officesense_pi/src/core/redis.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-import { createClient, type RedisClientType } from "redis";
-import config from "../config/config.js";
-
-let redisClient: RedisClientType;
-
-export async function initRedis(): Promise<RedisClientType> {
-    redisClient = createClient({
-        url: `redis://${config.redis.host}:${config.redis.port}`
-    });
-
-    redisClient.on("error", (err) => {
-        console.log("Redis error:", err.message);
-    });
-
-    await redisClient.connect();
-
-    console.log("Redis connected.");
-
-    return redisClient;
-}
-
-export function getRedis(): RedisClientType {
-    if (!redisClient) {
-        throw new Error("Redis not initialized");
-    }
-
-    return redisClient;
-}
\ No newline at end of file
diff --git a/src/officesense_pi/src/redis/redis.ts b/src/officesense_pi/src/redis/redis.ts
new file mode 100644
index 0000000..d9826d7
--- /dev/null
+++ b/src/officesense_pi/src/redis/redis.ts
@@ -0,0 +1,48 @@
+import { createClient, type RedisClientType } from "redis";
+import config from "../config/config.js";
+import { updateRoomOccupancyListener } from "../core/analyze.js";
+
+let redisClient: RedisClientType;
+let subRedisClient: RedisClientType;
+
+export async function initSubRedis(): Promise<void> {
+    subRedisClient = createClient({
+        url: `redis://${config.redis.host}:${config.redis.port}`
+    });
+
+    subRedisClient.on("error", (err) => {
+        console.log("[Redis] SubRedis error:", err.message);
+    });
+
+    await subRedisClient.connect();
+
+    console.log("[Redis] SubRedis connected.");
+
+    subRedisClient.pSubscribe("__keyevent@0__:expired", updateRoomOccupancyListener);
+
+    console.log("[Redis] SubRedis listener set.");
+}
+
+export async function initRedis(): Promise<RedisClientType> {
+    redisClient = createClient({
+        url: `redis://${config.redis.host}:${config.redis.port}`
+    });
+
+    redisClient.on("error", (err) => {
+        console.log("[Redis] Redis error:", err.message);
+    });
+
+    await redisClient.connect();
+
+    console.log("[Redis] Redis connected.");
+
+    return redisClient;
+}
+
+export function getRedis(): RedisClientType {
+    if (!redisClient) {
+        throw new Error("[Redis] Redis not initialized");
+    }
+
+    return redisClient;
+}
\ No newline at end of file