diff --git a/src/connections.cpp b/src/connections.cpp
index 3830f28..88c0d2c 100644
--- a/src/connections.cpp
+++ b/src/connections.cpp
@@ -10,6 +10,7 @@ extern "C" {
 
 #define MQTT_VALVE_COMMAND MQTT_TOPIC_BASE_SUB "/" MQTT_DEVICE_ID "/valve"
 #define MQTT_SOIL_PROPERTIES MQTT_TOPIC_BASE_SUB "/" MQTT_DEVICE_ID "/soil"
+#define MQTT_LIGHT_COMMAND MQTT_TOPIC_BASE_SUB "/" MQTT_DEVICE_ID "/light"
 
 TimerHandle_t mqttReconnectTimer;
 TimerHandle_t wifiReconnectTimer;
@@ -101,10 +102,21 @@ void onMqttMessage(char *topic, byte *payload, unsigned int payload_length) {
   }
   Serial.println();
 
+  if (strcmp(topic, MQTT_LIGHT_COMMAND) == 0) {
+Serial.println("receiving light treshold...");
+    Serial.println(topic);
+  }
   if (strcmp(topic, MQTT_VALVE_COMMAND) == 0) {
     Serial.println("toggling valve...");
     Serial.println(topic);
-    toggleValve();
+    StaticJsonDocument<1024> doc;
+    DeserializationError err = deserializeJson(doc, payload);
+    if (err == DeserializationError::Ok) {
+      int nm = doc["nm"];
+      setValueNM(nm);
+    } else {
+      Serial.println(err.c_str());
+    }
   }
   if (strcmp(topic, MQTT_SOIL_PROPERTIES) == 0) {
     Serial.println("receiving soil thresholds...");
diff --git a/src/header.h b/src/header.h
index 53d67c9..1a34635 100644
--- a/src/header.h
+++ b/src/header.h
@@ -77,7 +77,9 @@ extern void publishMessage(const char *topic, const char *msg);
 
 // RGB PWM LED
 extern void setupPWM();
-extern void activateLight();
+extern bool activateLight();
+extern void setValueNM(int NM);
+extern void getColorBasedOnValueNM();
 
 // sensors
 void readSensors();
diff --git a/src/lightChecker.cpp b/src/lightChecker.cpp
index 1a30e1e..79713d5 100644
--- a/src/lightChecker.cpp
+++ b/src/lightChecker.cpp
@@ -29,8 +29,9 @@ void setupPWM() {
     ledcAttachPin(PIN_LED_B, ledChannelBlue);
 }
 
-void readValueNM() {
-    // ValueNM = Read from database
+void setValueNM(int NM) {
+    valueNM = NM;
+    getColorBasedOnValueNM();
 }
 
 void getColorBasedOnValueNM() {
@@ -54,8 +55,9 @@ void getColorBasedOnValueNM() {
     }
 }
 
-void activateLight() {
+bool activateLight() {
     ledcWrite(ledChannelRed, colorValueArray[colorCounter][0]);
     ledcWrite(ledChannelGreen, colorValueArray[colorCounter][1]);
     ledcWrite(ledChannelBlue, colorValueArray[colorCounter][2]);
+    return true;
 }
\ No newline at end of file