iot app with thingspeak

[李家峰]

I want make a app with iot ,how can I do it ? I just receive the data on thingspeak.

for example: I update the "1" ,my app receive "1", then it warning with the sound ,or woring with text color change.

the most important is,my data is on the thingspeak . and just receive the data on thingspeak.

how can I write the example with block on

MIT App Inventor 2

 

[Ghica]

Is this a thingspeak question or an app Inventor question?
Could you provide more detail about what your app should do and how it should communicate with thingspeak?
Cheers, Ghca

[李家峰]

this is the  App Inventor 2 questino ,i want to write the app ,this app function is receive the data ,on the thingspeak ,and notice the user special message

ps:the special message is from thingspeak

[Ghica]

What does your thingspeak device look like? How is it going to communicate with App Inventor? Via Wifi? Bluetooth? BLE?
What is the data protocol it is using?
Cheers, Ghica

[李家峰]

this is thingspeak home page : https://thingspeak.com/

and it communicate with App Inventor is wifi

my data is using the arduino to update ,and it update with the wifi

i do not know the  protocol ,but i know it used the API key to get the imformation

[SteveJG]

Here is an article by Elizabeth Le about using AI2 with it iot  http://ai2.appinventor.mit.edu/reference/other/IoT.html   It uses Bluetooth to communicate and you probably will need similar techniques to talk to your arduino.     What you want to do is to send the data collected from your arduino to ThingsSpeak.     ThingsSpeak is not a device but an internet service that stores data and helps to organize and plot it.  Below is a specific example of communicating with the ThinksSpeak API to post/get information from this service (which is free only for non commercial apps).

This link may give you some ideas how to 'talk' to things speak using App Inventor  http://noobtechiespeaks.blogspot.com/2014/10/android-app-to-connect-to-thingspeak.html  

Is this what you wanted to know and does it work?

Regards,

Steve

[Ghica]

Hi Steve,
Your first reference is a very genral article about BLE which can be used for iOT, but the forum question talks about Wifi.
The second reference is spot-on though, and should indeed answer the question, as good as it gets.
Cheers, Ghica.

[Abraham Getzler]

Great Thingspeak link.

Added to the Web Services section of FAQ

https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/mitappinventortest/2cd6Uz__xA0/cPQSiZpcDAAJ

ABG

[李家峰]

thanks everyone teach me!

spend some time  investigative ,i found the rule for the thingspeak ,i just post the speacile URL then thingspeak receive special text ,so i just analysis this text.

so i have the question:how can i post the URL and how to analysis text in app's background?

for example :i post the special URL then it recive xxxxxxxxxxxxx.xxxxxxxx"field":"1" ,thne my app just find "field":"1 then do something ,how can i to make this app?