ArduinoJson 4.2

Changes since v4.1

• Switched back to old library layout (issues #39, #43 and #45)
• Removed global new operator overload (issue #40, #45 and #46)
• Added an example with EthernetServer

The documentation is in the wiki.

ArduinoJson 4.1

Changes compared to 4.0:

• Added DynamicJsonBuffer (issue #19)

Packages:

• ArduinoJson-v4.1.zip for Arduino IDE >=1.0.6 and >=1.5.6
• ArduinoJson-v4.1-old-layout.zip for older versions

ArduinoJson 4.0

Changes compared to 3.4:

• Unified parser and generator API (issue #23)
• Updated library layout, now requires Arduino 1.0.6 or newer

BREAKING CHANGE: API changed significantly, see doc/Migrating to the new API.md.

Requires Arduino IDE 1.0.6 or above.

ArduinoJson 4.0 beta 1

Changes compared to 3.4:

• Unified parser and generator API (issue #23)
• Updated library layout, now requires Arduino 1.0.6 or newer

BREAKING CHANGE: API changed significantly, see doc/Migrating to the new API.md.

ArduinoJson 3.4

Changes compared to 3.3:

• Fixed escaped char parsing (issue #16)

How to install?

To use this library with the Arduino IDE, you need to unzip the attached file into

<path_to_your_sketches>/libraries/

ArduinoJson 3.3

Changes compared to 3.2:

• Added indented output for the JSON generator, see example bellow.
• Added IndentedPrint, a decorator for Print to allow indented output

Example:

JsonOject<2> json;
json["key"] = "value";
json.prettyPrintTo(Serial);

How to install?

To use this library with the Arduino IDE, you need to unzip the attached file into

<path_to_your_sketches>/libraries/

ArduinoJson 3.2

Changes compared to 3.1:

• Fixed a bug when adding nested object in JsonArray (bug introduced in v3.1).

How to install?

To use this library with the Arduino IDE, you need to unzip the attached file into

<path_to_your_sketches>/libraries/

ArduinoJson 3.1

Changes compared to 3.0:

• Calling Generator::JsonObject::add() twice with the same key now replaces the value
• Added Generator::JsonObject::operator[], see bellow the new API
• Added Generator::JsonObject::remove()

Old generator API:

JsonObject<3> root; 
root.add("sensor", "gps");
root.add("time", 1351824120);
root.add("data", array);

New generator API:

JsonObject<3> root; 
root["sensor"] = "gps";
root["time"] = 1351824120;
root["data"] = array;

How to install?

To use this library with the Arduino IDE, you need to unzip the attached file into

<path_to_your_sketches>/libraries/

ArduinoJson 3.0

Changes compared to 2.1:

• New parser API, see bellow
• Renamed JsonHashTable into JsonObject
• Added iterators for JsonArray and JsonObject

Old parser API:

JsonHashTable root = parser.parseHashTable(json);

char*  sensor    = root.getString("sensor");
long   time      = root.getLong("time");
double latitude  = root.getArray("data").getDouble(0);
double longitude = root.getArray("data").getDouble(1);

New parser API:

JsonObject root = parser.parse(json);

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

See this blog post for more details

To use this library with the Arduino IDE, you need to unzip the attached file into

<path_to_your_sketches>/libraries/

ArduinoJson 2.1

Changes compared to 2.0:

• Fixed case #include "jsmn.cpp" which caused an error in Linux (issue #6)
• Fixed a buffer overrun in JSON Parser (issue #5)

To use this library with the Arduino IDE, you need to unzip the attached file into

<path_to_your_sketches>/libraries/