// ArduinoJson - https://arduinojson.org // Copyright © 2014-2024, Benoit BLANCHON // MIT License #include extern "C" void app_main() { char buffer[256]; JsonDocument doc; doc["hello"] = "world"; serializeJson(doc, buffer); deserializeJson(doc, buffer); serializeMsgPack(doc, buffer); deserializeMsgPack(doc, buffer); }