Provided to support existing applications. New projects should use :library:`ArduinoJson6`.
Attention!
Issue with JSON keys (applies to version 5 only)
According to the ArduinoJson docs it should take an internal copy of char* strings, but it doesn’t! This can occur using the :c:func:`_F` macro:
root[_F("offset")] = something;This won't work. Instead, use the :c:func:`F` macro:
root[F("offset")] = something;