created lcd and temp functionality

CrabbyHome-comp/CrabbyHome-master/platformio.ini

@@ -12,3 +12,7 @@
 platform = atmelavr
 board = megaatmega2560
 framework = arduino
+
+lib_deps =
+  https://github.com/adafruit/Adafruit_Sensor.git
+  https://github.com/fdebrabander/Arduino-LiquidCrystal-I2C-library

CrabbyHome-comp/CrabbyHome-master/src/main.cpp

@@ -1,9 +1,13 @@
 #include <Arduino.h>
+#include <temperature.h>
+#include <screen.h>
 
 void setup() {
-  // put your setup code here, to run once:
+	Serial.begin(9600);
+  temperature::init();
+  screen::init();
 }
 
 void loop() {
-  // put your main code here, to run repeatedly:
+  
 }

CrabbyHome-comp/CrabbyHome-master/src/screen.h

@@ -0,0 +1,38 @@
+#include <Wire.h> 
+#include <LiquidCrystal_I2C.h>
+
+LiquidCrystal_I2C lcd(0x3f, 16, 2);
+
+namespace screen{
+    void init();
+    void display(char* title, char* text);
+}
+
+void screen::init(){
+    lcd.begin();
+    // Print a message to the LCD.
+    lcd.backlight();
+    lcd.setCursor(3,0);
+    lcd.print("CrabbyHome");
+    lcd.setCursor(3,1);
+    lcd.print("Activated!");
+}
+
+void screen::display(char* title, char* text){
+    int titleSize = strlen(title);
+    int textSize = strlen(text);
+    lcd.clear();
+    
+    // check if text fits in screen
+    if(titleSize <= 16){
+        int offset = (16 - titleSize) / 2;
+        lcd.setCursor(offset, 0);
+    }
+    lcd.print(title);
+    
+    if(textSize <= 16){
+        int offset = (16 - textSize) / 2;
+        lcd.setCursor(offset, 1);
+    }
+    lcd.print(text);
+}

CrabbyHome-comp/CrabbyHome-master/src/temperature.h

@@ -0,0 +1,29 @@
+#include <DHT.h>
+
+#define DHT_SENSOR_PIN 7 // Define DHT Connected Data Pin
+#define DHT_TYPE DHT11 // Define DHT Sensor Type
+DHT dht_sensor(DHT_SENSOR_PIN, DHT_TYPE); // Set info for dht
+
+// create namespace
+namespace temperature{
+    void init();
+    float readTemp();
+    float readHum();
+}
+
+void temperature::init(){
+    dht_sensor.begin();
+    Serial.println("temp sensor init");
+}
+
+float temperature::readTemp(){
+    float temp = dht_sensor.readTemperature(); // read temp
+    
+    return temp;
+}
+
+float temperature::readHum(){
+    float hum = dht_sensor.readHumidity(); // read temp
+    
+    return hum;
+}