diff --git a/lib/patrix/sensors/Dallas.h b/lib/patrix/sensors/Dallas.h
index af1f513..b45797d 100644
--- a/lib/patrix/sensors/Dallas.h
+++ b/lib/patrix/sensors/Dallas.h
@@ -32,6 +32,10 @@ private:
 public:
 
   explicit Dallas(int pin) : oneWire(pin), sensors(&oneWire) {
+    // nothing
+  }
+
+  void begin() {
     sensors.begin();
     sensors.setWaitForConversion(false);
   }
@@ -39,7 +43,7 @@ public:
   void loop() {
     if (converting) {
       if (sensors.isConversionComplete()) {
-        if (first) {
+        if (first || isDebugEnabled()) {
           first = false;
           uint8_t count = sensors.getDeviceCount();
           if (count == 0) {
diff --git a/platformio.ini b/platformio.ini
index 5e7dc3f..d96b0d2 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -10,10 +10,10 @@ monitor_speed = 115200
 monitor_filters = esp32_exception_decoder
 WIFI_SSID = HappyNet
 WIFI_PKEY = 1Grausame!Sackratte7
-lib_deps = milesburton/DallasTemperature
+lib_deps = https://github.com/milesburton/Arduino-Temperature-Control-Library
            knolleary/PubSubClient
            bblanchon/ArduinoJson
-           paulstoffregen/OneWire
+           Wire
            https://github.com/phassel/ArduPID/
 
 [env:TEST32]
diff --git a/src/Fermenter.cpp b/src/Fermenter.cpp
index 292980c..64b2c39 100644
--- a/src/Fermenter.cpp
+++ b/src/Fermenter.cpp
@@ -5,12 +5,13 @@
 #include "config.h"
 #include <Arduino.h>
 
-#define CONTROL_GPIO          4
+#define SENSOR_GPIO           D4
+#define CONTROL_GPIO          D2
 #define CONTROL_PWM_BITS      10
 
-Dallas dallas(2);
+Dallas dallas(SENSOR_GPIO);
 
-DallasSensor sensor(dallas, 0xAA0121125E4A7528, "sensor", 0.5, 5, 60); // TODO wrong address
+DallasSensor sensor(dallas, 0xAA0121125E4A7528, "sensor", 0.5, 5, 60);
 
 ArduPID pid;
 
@@ -29,10 +30,11 @@ double integral = 0;
 double derivative = 0;
 
 void patrixSetup() {
-  configLoad();
-
+  dallas.begin();
   analogWriteResolution(CONTROL_PWM_BITS);
 
+  configLoad();
+
   pid.begin(&temperatureCurrent, &heaterPWM, &temperatureTarget, proportional, integral, derivative);
   pid.setOutputLimits(0, pow(10, CONTROL_PWM_BITS) - 1);
   pid.start();