ArduinoJson 6.5.0-beta

Special note ⚠️

ArduinoJson 6 requires updating code written for version 5.
See the migration guide for details.

Changes since 6.4.0-beta

• Added implicit conversion from JsonArray and JsonObject to JsonVariant
• Allow mixed configuration in compilation units (issue #809)
• Fixed object keys not being duplicated
• JsonPair::key() now returns a JsonKey
• Increased the default capacity of DynamicJsonDocument
• Fixed JsonVariant::is<String>() (closes #763)
• Added JsonArrayConst, JsonObjectConst, and JsonVariantConst
• Added copy-constructor and copy-assignment-operator for JsonDocument (issue #827)

View version history

How to install

There are several ways to install ArduinoJson, from simpler to more complex:

1. Use the Arduino Library Manager
2. Download ArduinoJson-v6.5.0-beta.h put it in your project folder
3. Download ArduinoJson-v6.5.0-beta.zip and extract it in you libraries folder

Note: ArduinoJson-v6.5.0-beta.h are ArduinoJson-v6.5.0-beta.hpp are almost identical; the difference is that the .hpp keeps everything in the ArduinoJson namespace.

Try online

• JsonParserExample
• JsonGeneratorExample
• MsgPackParserExample