Docs
ExamplesGet started with popular boardsGet started with our kits

In this article

Arduino


Arduino Board

This step by step guide will help you set up your first working Arduino experiment. It will show how to send data from your Arduino to the AllThingsTalk cloud.

Prerequisites

Hardware

An Arduino (compatible) board with ethernet port, such as the Arduino Leonardo Ethernet, Arduino UNO or Arduino Ethernet.

Software

Our first program

Create a device

First we need to create our device.

  • Log in to AllThingsTalk Maker
  • Navigate to the ground in which you want to create your device

If you just created a new account, you will have a default ground called playground. You can use this ground to create your device or create a new ground if you want.

  • Hit the + CONNECT A DEVICE button
  • Select WIFI / LAN devices
  • Select Arduino

Enter credentials

Next we need to add the credentials of our device (deviceid and authorization token) to our example sketch, so it knows where to send its data. You can find them under SETTINGS > Authentication of the device you just created.

  • Open your Arduino IDE
  • Under File > Examples > ATT_IOT open the counter example sketch
  • Simply fill in your credentials in the code right beneath // define device credentials
char deviceId[] = "AnIev364YE0yXI2COXcufWgx";
char token[] = "maker:8hQT2IQm1cLsW1VeVqyzg7zhJNGabCyrIbw1XCN1";

In case you have multiple devices running, you can change the MAC-address in the sketch to make sure the device doesn’t interfere with others. Normally this should be printed on a sticker on the back of your Arduino like 90-A2-DA-0F-C9-4D.
Adapt this line in the code Byte mac[] = { 0x90, 0xA2, 0xDA, 0x0F, 0xC9, 0x4D };

We are now ready to upload and run our sketch!

Run the example

Simply hit the upload icon in the Arduino IDE. This will save the sketch, compile it and upload it to your Arduino.



If all went well, a counter asset is created under your device in AllThingsTalk Maker and values start rolling in. Every 3 seconds the counter is augmented by one.

Alternatively, you can also open the Tools > Serial monitor of the Arduino IDE. This can be very useful when debugging your own sketches.

  • Make sure you select the correct COM port to listen (under Tools > Port )
  • When the monitor is open, make sure the Baud rate is set to 9600

That’s it! You just made your first working IoT prototype!

More examples

This first example shows how to send data from the device to the AllThingsTalk cloud.

Try the led-actuation.ino example for communication in the other direction! Send commands from AllThingsTalk to your device!

Next, please try these basic experiments connecting the Grove sensors and actuators from the kit

Grove sensors

For more info on Grove sensors and Actuators as found in the AllThingsTalk kit, please check our Sensors and Actuators page.