Arduino Tutorial - Outputting JSON over Serial

Outputting JSON with the Arduino is useful when you are communicating with 3rd party applications that require data formatted as a JSON string.

This is particularly relevant when working on IoT projects and gathering sensor information.

Full credit goes to Benoit Blanchon for creating the amazing library used in this tutorial:

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[nareshveda]

just like lightning, super fast and clear explanation. Thumbs-up and thanks.

[scotram]

This is what all tutorials should be like, thank you very much. Could you make a tutorial for going the other way around? Example sending a json string from raspberry pi and decoding it on arduino and setting some globals?

[shadowhunter]

Thank you for the tutorial!! It's beneficial. But how should I do it if I have a real-time sensor?

[PayneDeathz]

Quick and Fast! Although this video needs updating bcz of the newer version, this helped build up the foundation for the code :)

[n]

Hey how did you access your json file in the first place? If you altered its values didn’t you need to get the json file path, Great tutorial btw

[abcd-ygrx]

i tried . Visual studio says that i have to include the library arduinojson-v6, 15. So I did, . I dowloaded, put in the right folder, nevertheless it doesnt find it

[jludian]

Thank you so much man!! that's what i've been looking for :)

[berniejansen]

Hi will you be able to send the temperature as "21.5", a double value?

[brucespzn]

I get -1 as value from Serial.read function. Have any clue of what is going on?
Thank you.

[kiranparte]

I am receiving a JSON stream over serial I just want to to deserialize it and print the content, if possible can u help me ?

[michaelmcnaughton]

Thanks for the tutorial. I have a question. Is there a method of publishing a JSON package to mqtt?

[ragilburhanudinpamungkas]

this will help me make the code easier for my python program in my rasp. thanks :)

[Ahmedhkad]

Good thanks, now how to receive and sand data json in same time ?

[CandraJunus]

Have you ever done it using Python? send json data from python to arduino?

[muzmmilpathan]

Sir I want to make a JSON of GPS value and store it and pass to mqtt I know from your video how to generate and show in serial monitor but want to store it in JSON please help me

[davebeckham]

Nice tutorial decode. Very well explained. Would like to learn complete Arduino JSON, can you suggest. - Many thanks.

[MrknisterKanister]

thems not to work with the newest ArduinoJson version

"DynamicJsonBuffer is a class from ArduinoJson 5. Please see arduinojson.org/upgrade to learn how to upgrade your program to ArduinoJson version 6"

Thx Anyway. Your vidoe gives a great startup

[AnkitModi_AnkyX]

hey great tutorial
I want to use this method to Send data on firebase using Arduino Uno + SIM808 (HTTP GET & POST AT Commands)
help me out please

[deltekkie]

Dude...get a headset mic so we don't have to listen to you peck on the keyboard.