Published June 22, 2016 © GPL3+

Thermometer with Intel Edison and SeeedStudio Grove

Here's a very easy little project to make a Thermometer and learn a bit about the Intel Edison.

Beginner1 hour1,129

Thermometer with Intel Edison and SeeedStudio Grove

Things used in this project

Hardware components

Intel Edison Kit for Arduino

Seeed Studio Grove Starter Kit Plus - IoT Edison

Software apps and online services

Intel® XDK IoT Edition

Story

This is an easy project to make your Intel Edison development system do something - Tell you the temperature!

This project Does Not detail how to set up your Intel Edison board nor the XDK Development system. To learn that, we recommend visiting the Intel Edison Getting Started website.

Step 1 - Connect up the Components

Pull your parts out of the Grove kit and plug them into your board. You will need the base board, temperature sensor, and LCD RGB Backlight display. Grab a couple cables too -

Assemble the components

Connect the base board to the Edison development Board. Note how the pins line up, much like an Arduino board

Connect the temperature sensor to the A0 Analog port

Connect the Display to any I2C Port

Your system should look like this:

We assume that you have already configured your Edison to connect to you Wifi, and will not need any USB cables. So go ahead an plug it in with the power cable that comes with the Seeed kit, and let's get programming

Step 2 - Create your Project

Using the XDK we will start a new project and paste the Thermometer code into it.

Open your Intel XDK for IoT App

Click the Projects tab and then Start a New Project in the lower left hand corner

Select Templates, and choose Blank Template, and then Continue

Choose a nice name, like Thermometer, and click Create

Copy the main.js code from the code section of this how-to into your main.js code in XDK.

Click File, Save.

Step 3 - Program the Edison

Now we can connect to our Edison and upload our code. For this step, we will focus on the bottom half of the XDK, where we can see our Edison output to confirm programming and operation.

Select your IoT Device from the drop down menu. Type in your password.

You should now be connected to your Edison, and see "Intel XDK" in the Intel XDK IoT console window:

If you don't, or you got an error, you need to check your Edison and XDK installations by following the getting started guides mentioned above.

Now click on the Down Arrow button to upload your code to the Edison. You should see "Upload Complete" like this -

Upload Complete
Not auto starting by request

If you would like a little more detail on how to navitgate XDK, we recommend the Intel Getting Started Page

Step 4 - Run and Test

Great! Almost there! Now click the grey box with a green play button to Run your program. You should see output in your console window like this:

Take a look at your LCD display. All good? Good!

Step 5 - Experiment!

Go back to your XDK. Take a look at the delay variable, and the display.setColor function. What happens if you change those values? Do it! Save, Upload and run.

Try a different analog sensor! Refer to the Grove System Wiki Page for info about the modules.

We hope you had fun working with your Intel Edison and SeeedStudio Grove starter Kit! What will YOU make?

Code

main.js

/* Thermometer

Connect Intel Edison with Seedstudio Grove Starter Kit Plus Temperature sensor and display to make a Thermometer.

Hardware:
Intel Edison Kit for Arduino
Grove Starter Kit Plus, containing - 
    Base Shield
    Temperature Sensor
    LCD Display
    
Connect the LCD to and I2C Port
Connect the temperature sensor to A2 port
Set shield for 5 volts

pete@hoffswell.com
June, 2016
*/

var mraa = require('mraa'); //require mraa
console.log('Thermometer');
console.log('MRAA Version: ' + mraa.getVersion()); //write the mraa version to the console
var lcd = require('jsupm_i2clcd');
var display = new lcd.Jhd1313m1(0, 0x3E, 0x62);
var analogPin0 = new mraa.Aio(0); //setup access analog input Analog pin #0 (A0)
var B = 3975; // B value of termistor 
var delay = 3000; // delay between reads/display

display.setColor(0, 100, 50);  // R G B display background color

read_display(); // start the loop

function read_display() {
    // read the temperature sensor, convert to celsius/fahrenheit, display on console and LCD.
    var analogValue = analogPin0.read(); //read the value of the analog pin
    var resistance = (1023 - analogValue) * 10000 / analogValue; //get the resistance of the sensor;
    var celsius_temperature = 1 / (Math.log(resistance / 10000) / B + 1 / 298.15) - 273.15; //convert to temperature via datasheet ;
    var fahrenheit_temperature = (celsius_temperature * (9 / 5)) + 32;
    var display_temp = fahrenheit_temperature;
    
    display.setCursor(0,0);
    display.write('Temp: ' + display_temp);  
    console.log('Temp: ' + display_temp);
    setTimeout(read_display,delay);
    
}

Credits

Pete Hoffswell

10 projects • 63 followers

Network Engineer for All the People. Internet advocate. Microcontroller Fan. Maker.

Thermometer with Intel Edison and SeeedStudio Grove

Things used in this project

Hardware components

Software apps and online services

Story

Step 1 - Connect up the Components

Step 2 - Create your Project

Step 3 - Program the Edison

Step 4 - Run and Test

Step 5 - Experiment!

Schematics

Plug and Play

Code

main.js

Credits

Pete Hoffswell

Comments

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Thermometer with Intel Edison and SeeedStudio Grove

Thermometer with Intel Edison and SeeedStudio Grove

Things used in this project

Hardware components

Software apps and online services

Story

Step 1 - Connect up the Components

Step 2 - Create your Project

Step 3 - Program the Edison

Step 4 - Run and Test

Step 5 - Experiment!

Schematics

Plug and Play

Code

main.js

Credits

Pete Hoffswell

Comments

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