ArduinoJson6113 (community library)

Summary

Name	Value
Name	ArduinoJson6113
Version	6.11.3
Installs	1334
License	MIT
Author	Benoit Blanchon <blog.benoitblanchon.fr>
Maintainer	Benoit Blanchon <blog.benoitblanchon.fr>
URL	https://arduinojson.org/?utm_source
Repository	https://github.com/bblanchon/ArduinoJson.git
Download	.tar.gz

An efficient and elegant JSON library for Arduino. ArduinoJson supports ✔ serialization, ✔ deserialization, ✔ MessagePack, ✔ fixed allocation, ✔ zero-copy, ✔ streams, and more. It is the most popular Arduino library on GitHub ❤❤❤❤❤. Check out arduinojson.org for a comprehensive documentation.

Example Build Testing

Device OS Version:

This table is generated from an automated build. Success only indicates that the code compiled successfully.

Library Read Me

This content is provided by the library maintainer and has not been validated or approved. ArduinoJson (image removed)

ArduinoJson is a C++ JSON library for Arduino and IoT (Internet Of Things).

Features

JSON decoding (comments are supported)
JSON encoding (with optional indentation)
MessagePack
Elegant API, easy to use
Fixed memory allocation (zero malloc)
No data duplication (zero copy)
Portable (written in C++98, can be used in any C++ project)
Self-contained (no external dependency)
Small footprint
Input and output streams
100% code coverage
Header-only library
MIT License
Comprehensive documentation

Compatibility

ArduinoJson works on the following hardware:

Arduino boards: Uno, Due, Mini, Micro, Yun...
Espressif chips: ESP8266, ESP32
WeMos boards: D1, D1 mini, ...
RedBearLab boards: BLE Nano, BLE Mini, WiFi Micro, LOLIN32...
Teensy boards
Intel boards: Edison, Galileo...
Particle boards: Photon, Electron...
Texas Instruments boards: MSP430...

ArduinoJson compiles with zero warning on the following compilers, IDEs, and platforms:

Quickstart

Deserialization

Here is a program that parses a JSON document with ArduinoJson.

char json[] = "{\"sensor\":\"gps\",\"time\":1351824120,\"data\":[48.756080,2.302038]}";

DynamicJsonDocument doc(1024);
deserializeJson(doc, json);

const char* sensor = doc["sensor"];
long time          = doc["time"];
double latitude    = doc["data"][0];
double longitude   = doc["data"][1];

See the tutorial on arduinojson.org

Serialization

Here is a program that generates a JSON document with ArduinoJson:

DynamicJsonDocument doc(1024);

doc["sensor"] = "gps";
doc["time"]   = 1351824120;

JsonArray data = doc.createNestedArray("data");
data.add(48.756080);
data.add(2.302038);

serializeJson(doc, Serial);
// This prints:
// {"sensor":"gps","time":1351824120,"data":[48.756080,2.302038]}

See the tutorial on arduinojson.org

Documentation

The documentation is available on arduinojson.org, here are some shortcuts:

The Examples show how to use the library in various situations.
The API Reference contains the description of each class and function.
The FAQ has the answer to virtually every question.
The ArduinoJson Assistant writes programs for you!

Do you like this library? Please star this project on GitHub!

What? You don't like it but you love it? We don't take donations anymore, but we sell a book, so you can help and learn at the same time!