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Using API with Arduino


gilbert
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Question

Hope somebody can help me...

I want to use my Arduino Uno for sending a http request to HC2 for turning off a light. When I enter

"http://admin:[email protected]:80/api/callAction?deviceID=7&name=turnOff"

into the address bar of my browser, the light nicely turns off.

I tried the following code for the Arduino, but with no succes:

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I tried different things like PUT and POST and different examples I found on different forums. The serial monitor of the Arduino IDE prints "connected", so I assume a connection is established with the HC2. I'm not that familiar with http requests so any help is appreciated

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/emoticons/default_icon_biggrin.gif" alt=":-D" />.

Thanks in advance.

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14 answers to this question

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gilbert, try with on the same line

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. Perhaps try encode url

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but I don't know much about this platform... Good luck

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The reason your browser is successfull is because you are logged in to the HC2 with a session. But you don't enter your credentials with your arduino code...

So you have to find out how to add that. I am very interested in the code you are building. Was thinking of building a Arduino device with a Keypad, rfid, and tts engine for arming and disarming the alarm with voice feedback. What kind of arduino and module do you use?

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  • Inquirer
  • Krikroff, thanks for your reply. I will try this tonight.

    stevenvd, I hoped using

    Please login or register to see this code.

    would log into the HC2. But 'm not sure it works correctly.

    I use an Arduine Uno Rev3 with an ethernet shield (Wiznet W5100) from dealextreme.

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    Krikroff, thanks for your reply. I will try this tonight.

    stevenvd, I hoped using

    Please login or register to see this code.

    would log into the HC2. But 'm not sure it works correctly.

    I use an Arduine Uno Rev3 with an ethernet shield (Wiznet W5100) from dealextreme.

    You can also try

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    or put basic authentification (encoded in Base64) in header:

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    cf.

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    regards.

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  • Inquirer
  • Krikroff Thanks for your help, appreciate it. I tried a lot of things, but with no succes. I think indeed the problem is with the authorization.

    As I did not found examples for http communication between Arduino and HC2, I found enough examples of http communication between Arduino and Vera from micasaverde. I assume it also needs authorization, but I don't know the Vera.

    Nevertheless, I made some progress. I managed to create a TCP connection between HC2 and Arduino. To do this I created a virtual device button with the following code:

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    The Arduino can read this code and send back an acknowledgement using the following code:

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    However, to get information from Arduino, HC2 has to poll the Arduino, for example each x seconds in the main loop of the virtual device. I know this isn't the best solution, but for me it will work for the things I want to achieve.

    Still, any suggestions and tips are welcome

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    gilbert, have you try to add a custom header to your http request with

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    ? normally it should work...

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  • I tried:

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    where xxxxx is the base64 encoded text of username:password (encoding at

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    )

    But without succes...

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    /emoticons/default_icon_confused.gif" alt=":-?" />

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    Guest rafal_ll
    I tried:

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    where xxxxx is the base64 encoded text of username:password (encoding at

    Please login or register to see this link.

    )

    But without succes...

    Please login or register to see this image.

    /emoticons/default_icon_confused.gif" alt=":-?" />

    Solved the problem?

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    Did you manage to get it working? I want to build a wall thermostat and Alarm panel on an Arduino with a 4d systems touchscreen and Wifi shield.

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    Guest samuelboerhoop

    gilbert or others how did you solve the problem?

     

    I have a arduino nano with en enc28j60 ethernet module. 

    a webserver, with a webpage is working, with 4 inputs and 4 outputs, displaying.

    From my HC2 I can sent commands to the arduino nano to switch on/off the relays, when i go to the webserver from the arduino nano on the webpage i am able to switch on/off the relays too.

     

    Now I have to arrange the inputs feedback and output feedback towards the fibaro hc2 isn't working yet.

     

    if someone needs my arduino sketch let me know. 

     

    when i type this line below in a normal browser it will trigger by means of a VD button a global variable.

    So i need to convert this to arduino language to sent to the fibaro hc2

     

     

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    login = loginname from hc2

    password = password from hc2

    ip-address-hc2 = ip address from Hc2

    deviceid = device id from virtual device

    last digit 1 = number button

     

    love to hear from you guys

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    Guest samuelboerhoop

    Gilbert: you said: However, to get information from Arduino, HC2 has to poll the Arduino, for example each x seconds in the main loop of the virtual device.

     

    What is the code you put in de main loop to read the response ? Thanks for sharing

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    #include <Ethernet.h>
    #include <SPI.h>
    #include "RestClient.h"

    RestClient client = RestClient("192.16.1.136"); //IP Home Center

    //Setup
    void setup() {
      Serial.begin(9600);
      // Connect via DHCP
      Serial.println("connect to network");
      client.dhcp(); //DHCP IP
      Serial.println("Setup!");
    }

    String response;
    void loop(){
      response = "";
      client.setHeader("Authorization: Basic XXXXXXXXXX"); //In base 64 user: password
      int statusCode = client.get("/api/sceneControl?id=id&action=start", &response); //code to execute the id scene
      Serial.print("Status code from server: ");
      Serial.println(statusCode);
      Serial.print("Response body from server: ");
      Serial.println(response);
      delay(1000);
    }

     

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