diff --git a/README.md b/README.md
index 362eb45..b795494 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,3 @@
 
 ## TODO
 
-* output temp control is not ideal (on/off does not represent values between 0 and 100)
-* experiment with p,i,d
diff --git a/hot_fermentation.ino b/hot_fermentation.ino
index 4fd8918..ab671df 100644
--- a/hot_fermentation.ino
+++ b/hot_fermentation.ino
@@ -61,14 +61,14 @@ struct Profile {
 
 // Profiles definition
 Profile profiles[] = {
-  {"Chickpeas", 2, {{47, 120}, {55, 60}, {65, 150}, {70, 60}, {90, 105}}, 5},
-  {"Lentils", 3, {{47, 120}, {53, 120}, {65, 180}, {72, 90}, {90, 15}}, 5},
-  {"Lentils gradual", 10, {{48, 120}, {80, 60}}, 2},
-  {"Soy gradual", 10, {{42, 1}, {48, 120}, {80, 60}, {90, 15}}, 4},
-  {"Wheat", 1, {{47, 60}, {53, 60}, {65, 20}, {72, 20}, {85, 20}}, 5},
-  {"55-30&85-120", 1, {{55, 30}, {85, 120}}, 2},
-  {"46-45", 0, {{46, 45}}, 1},
-  {"Test", 3, {{51, 1}}, 1},
+  {"Chickpeas", 1, {{46, 120}, {55, 60}, {65, 150}, {70, 60}, {90, 105}}, 5},
+  {"Lentils", 3, {{46, 120}, {53, 120}, {65, 180}, {72, 90}, {90, 15}}, 5},
+  {"Gradual", 10, {{46, 120}, {80, 60}}, 2},
+  {"Long gradual", 10, {{46, 120}, {80, 60}, {90, 15}}, 3},
+  {"Wheat", 1, {{46, 60}, {53, 60}, {65, 20}, {72, 20}, {85, 20}}, 5},
+  {"SV1", 1, {{55, 30}, {85, 120}}, 2},
+  {"SV2", 0, {{46, 45}}, 1},
+  {"Yoghurt maker", 0, {{40, 300}, {40, 300}, {30, 300}}, 3},
 };
 
 // Global variables for profile selection and execution
@@ -87,7 +87,9 @@ bool inSelectionMode = true;
 
 #include "GyverPID.h"
 double Setpoint, Input, Output;
-GyverPID regulator(50, 0, 0, 1000);
+GyverPID regulator(25, 0, 0, 1000);
+
+bool temperatureSensorError = false;
 
 // Timing variables
 long phaseStartTime;
@@ -118,7 +120,10 @@ uint32_t timerChecks= 0;
 
 bool boolLastCompletedState = false;
 
-#define PARTS 4
+float failedReadingLastValue = 0;
+int failedReadingCount = 0;
+
+#define PARTS 8
 
 void setup() {
   pinMode(ssrPin, OUTPUT);
@@ -192,8 +197,13 @@ void handleTemperatureSensor() {
   Input = thermocouple.readCelsius();
 #endif
 
-  if (isnan(Input)) {
-    Input = 100;
+  if (isnan(Input) || Input < 20 || Input > 95) {
+    failedReadingLastValue = (float) Input;
+    failedReadingCount++;
+    temperatureSensorError = true;
+  }
+  else {
+    temperatureSensorError = false;
   }
 
 }
@@ -269,6 +279,10 @@ void handleHeaterAdv() {
     oled.invertText(false);
   }
 
+  if (temperatureSensorError) {
+    next = 0;
+  }
+
   digitalWrite(ssrPin, next);
   currentPart++;
   if (currentPart >= PARTS) {
@@ -518,6 +532,27 @@ void printPhases() {
     }
   }
 
+  if (temperatureSensorError) {
+    oled.invertText(true);
+    oled.setCursor(0, 0);
+    oled.setScale(2);
+    oled.print("T = ");
+    oled.print(Input);
+    oled.print("   ");
+    oled.setScale(1);
+    digitalWrite(activeBuzzerPin, HIGH);
+    delay(5);
+    digitalWrite(activeBuzzerPin, LOW);
+  }
+
+  if (failedReadingCount) {
+    oled.setCursor(0, 7);
+    oled.print(failedReadingCount);
+    oled.print(" (");
+    oled.print(failedReadingLastValue);
+    oled.print(")      ");
+  }
+
   oled.invertText(false); // Ensure text inversion is off after the loop
 
   // oled.setCursor(110,7);