Room Temperature Detection with Galileo Gen 1 and Grove Kit

Note: This program works in conjuction with 2 files - rgb_lcd.cpp and rgb_lcd.h for controlling the RGB LCD display. We define 4 variables of type int – colorR, colorG, colorB and b & of type float – resistance, temperature. We then go to the method loop(), where we find another variable called val, that stores the pinTemp via the method analogRead(). After this, we calculate resistance and temperature, using simple existing formulas. Inside the loop, before displaying the temperature value, we set the color scheme that will be visible based on the temperature, in our case is "Below 27" and “Above 27”. With the print() method, the value of the detected temperature as well as the corresponding message is displayed in Celsius. The interesting part comes now, with the lcd.clear() and delay() methods, as while the former eliminates all the content currently visible in the display, the delay() method ensures that after every 5 seconds interval it checks the temperature via the Sensor and displays it on the LCD. Steps:

1. Start with downloading the Arduino IDE for Intel Galileo and the Temperature Sensor code from GitHub.
   Note: Fork the project from here.
   Transfer the .cpp and .h files into the Arduino folder -> Library folder -> Temperature_Sensor and save the .ino file into the same folder.
2. Open the code in the IDE, select Board as Intel Galileo and Port based on the Port visible in Device Manager, accessed via Win+R and then write devmgmt.msc.
   
   Figure 4: Code in the IDE
3. Once the code is uploaded, the LCD shows an initial purple light (because of color R, color G, and colorB being set at 255 each).
4. As soon the Temperature Sensor senses the room temperature, which it checks for every 5 seconds, the following 2 conditions take place:
   1. Temperature is less than 27 degrees.
      
      Figure 5: Temperature is less than 27 degrees
   2. Temperature is greater than 27 degrees.
      
      Figure 6: Temperature is greater than 27 degrees