diff --git a/Arduino/CanGrow/CanGrow.ino b/Arduino/CanGrow/CanGrow.ino
index f5e2657..2ef6a4d 100644
--- a/Arduino/CanGrow/CanGrow.ino
+++ b/Arduino/CanGrow/CanGrow.ino
@@ -1,9 +1,33 @@
+/*
+ * CanGrow - simply DIY automatic plant grow system (for cannabis).
+ * 
+ * Pin assignment
+ * ==============
+ * 
+ * D0      - DHT11
+ * D1, D2  - I2C
+ * D3      - MOSFET Fan
+ * D4      - MOSFET Pump
+ * D5      - MOSFET Grow LED, PWM
+ * 
+ */
+
+
 #include <SPI.h>
 #include <Wire.h>
 #include <Adafruit_GFX.h>
 #include <Adafruit_SSD1306.h>
+#include "DHT.h"
+
+uint8_t PINdht = D3;
+uint8_t PINfan = 3;
+uint8_t PINpump = 4;
+uint8_t PINled = 5;
 
 #define WIRE Wire
+#define DHTTYPE DHT11
+
+
 
 Adafruit_SSD1306 display = Adafruit_SSD1306(128, 32, &WIRE);
 // 'CanGrow_Logo', 128x32px
@@ -49,15 +73,22 @@ const unsigned char* bmpallArray[1] = {
 };
 
 
+// I2C moisture sensor measurements
 // soil moisture value
-int soilMoisture; 
-int soilMoistureOld = 0 ;
+int chirpMoisture; 
+int chirpMoistureOld = 0 ;
 // temp value from i2c sensor
-int temp1Val;
-int temp1ValOld = 0;
+int chirpTemp;
+int chirpTempOld = 0;
 // light intensity value 
-int lightVal;
-int lightValOld = 0;
+int chirpLight;
+int chirpLightOld = 0;
+
+// DHT measurements
+float dhtTemp;
+float dhtHumidity;
+
+DHT dht(PINdht, DHTTYPE); 
 
 void writeI2CRegister8bit(int addr, int value) {
   Wire.beginTransmission(addr);
@@ -82,23 +113,28 @@ void setup() {
   writeI2CRegister8bit(0x20, 6); //reset
   display.begin(SSD1306_SWITCHCAPVCC, 0x3C); // Address 0x3C for 128x32
 
-  display.display();
-  delay(1000);
-
+  pinMode(PINdht, INPUT);
+  dht.begin();
+  
   display.clearDisplay();
   display.display();
 
   display.drawBitmap(0, 0, bmpCanGrow_Logo, 128, 32, WHITE);
   display.display();
-  delay(5000);
+  delay(2500);
 
+  display.clearDisplay();
+  display.display();
+  
   display.setTextSize(1);
   display.setTextColor(SSD1306_WHITE);
 }
 
 void loop() {
-  soilMoisture = readI2CRegister16bit(0x20, 0);
+  chirpMoisture = readI2CRegister16bit(0x20, 0);
   
+/*  
+ *   Test for refresh one value. Test read i2c values
   Serial.print(readI2CRegister16bit(0x20, 0)); //read capacitance register
   Serial.print(", ");
   Serial.print(readI2CRegister16bit(0x20, 5)); //temperature register
@@ -111,16 +147,35 @@ void loop() {
 
   display.setCursor(73,0);
   display.setTextColor(SSD1306_BLACK);
-  display.print(soilMoistureOld);
+  display.print(chirpMoistureOld);
   display.display();
 
-  delay(800);
   
   display.setCursor(73,0);
   display.setTextColor(SSD1306_WHITE);
-  display.print(soilMoisture);
-  soilMoistureOld = soilMoisture;
+  display.println(chirpMoisture);
+  float chirpMoistureF = chirpMoisture / 10;
+  display.print(chirpMoisture);
+  chirpMoistureOld = chirpMoisture;
+  */
+
+  display.clearDisplay();
+  display.display();
   
+  display.setCursor(0,0);
+  display.print("I2C: ");
+  display.print(readI2CRegister16bit(0x20, 0));
+  display.print(", ");
+  display.print(readI2CRegister16bit(0x20, 5));
+  display.print(", ");
+  display.print(readI2CRegister16bit(0x20, 5));
+  writeI2CRegister8bit(0x20, 3); //request light measurement 
+  display.println(readI2CRegister16bit(0x20, 4));
+  
+  display.print("DHT11: ");
+  display.print(dht.readTemperature());
+  display.print(", ");
+  display.print(dht.readHumidity());
   //display.println(readI2CRegister16bit(0x20, 0));
   display.display();