diff --git a/src/config.h b/src/config.h
index 97627ff..4d3d7a4 100644
--- a/src/config.h
+++ b/src/config.h
@@ -3,6 +3,7 @@
 
 #define PIN_DHT 16
 #define PIN_ATOMIZER 4
+#define PIN_ATOMIZER_LDR 33
 
 // mqtt://interact:c9FjEDUnRgDTalBR@interact.cloud.shiftr.io
 #define MQTT_BROKER "interact.cloud.shiftr.io"
diff --git a/src/main.cpp b/src/main.cpp
index 8865993..cc67a71 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -14,7 +14,7 @@
 #include "mqtt.h"
 
 DHT dht(PIN_DHT, DHT11);
-Atomizer fog(PIN_ATOMIZER);
+Atomizer fog(PIN_ATOMIZER, PIN_ATOMIZER_LDR);
 
 typedef struct dhtReading {
   float humidity,  // in % 
@@ -32,8 +32,6 @@ void setup() {
   Serial.begin(115200);
   LOG_INIT();
 
-  pinMode(PIN_ATOMIZER, OUTPUT);
-
   duty.setFrequency(0.05);
   duty.setAmplitude(0.5);
   duty.setPhase(0);
@@ -51,6 +49,8 @@ void setup() {
     Serial.println("Brace! Brace! trying to continue without wifi...");
   }
 
+  fog.calibrate();
+
   mqtt_init();
 
   Serial.println("Initializing DHT sensor...");