Category : arduinojson

I am trying to run a program using the ArduinoJson library with the VSC extension Code Runner but I cannot compile it. There are no markup errors or warnings in VSC but when I try to run this snippet: #include "../External_Libraries/ArduinoJson/ArduinoJson.h" #include <iostream> int main(){ std::cout << "Done.n"; return 0;} I get the error output ..

Read more

This is the older version code for ArduinoJson v5.0: JsonObject& json_parsed = jsonBuffer.parseObject(json); This is after I changed it to ArduinoJson v6.0: deserializeJson=(doc, json); And after that I got this error messageC:UserswweihDesktopNew folder (2)free_codefree_code.ino: In function ‘void loop()’: free_code:55:33: error: overloaded function with no contextual type information 55 | deserializeJson=(doc, json); | ^ please help. ..

Read more

I’m writing some script for esp32 and struggling to serialize a json. Used libraries are HTTPClient and ArduinoJson. String payload = http.getString(); Serial.println(payload); deserializeJson(result, payload); const char* usuario = result["user"]; Serial.println("##########"); Serial.println(usuario); The received payload is: {"ip":"10.57.39.137","area":"[{"id":"3","text":"BOX"}]","user":"[{"id":"6270","text":"ANDRE LARA OLIVEIRA E SILVA"}]","teamId":6,"id":4,"siteId":2,"userCreate":"100059527","dateCreate":"2020-11-19T08:49:03.957","userUpdate":null,"dateUpdate":null} and i need to retrieve id and text from "user" key. Its fine to ..

Read more

I’m trying to save JSON objects in a C++ struct using ArduinoJSON and am hitting some snags. My initial struct was the following: struct Doc { ArduinoJson::DynamicJsonDocument data; }; but this threw an error: " malloc: *** error for object 0xffffffffffff0098: pointer being freed was not allocated Make The Thing(18437,0x104da9880) malloc: *** set a breakpoint ..

Read more