Comparision of JSON parsing libraries for Arduino

aJson.ino

#include <aJSON.h>

char json[] = "{\"sensor\":\"outdoor\",\"value\":25.6}";

void setup()
{
    Serial.begin(9600);
    Serial.println(json);

    aJsonObject* root = aJson.parse(json);
    aJsonObject* name = aJson.getObjectItem(root, "sensor");
    aJsonObject* value = aJson.getObjectItem(root, "value");

    Serial.println(name->valuestring);
    Serial.println(value->valuefloat);
    
    aJson.deleteItem(root);
}

void loop()
{

}

ArduinoJson2.ino

#include <JsonParser.h>

using namespace ArduinoJson::Parser;

char json[] = "{\"sensor\":\"outdoor\",\"value\":25.6}";

void setup()
{
    Serial.begin(9600);
    Serial.println(json);   

    JsonParser<10> parser;
    JsonHashTable hashTable = parser.parseHashTable(json);
    
    Serial.println(hashTable.getString("sensor"));
    Serial.println(hashTable.getDouble("value"));
}

void loop()
{

}

ArduinoJson3.ino

#include <JsonParser.h>

using namespace ArduinoJson::Parser;

char json[] = "{\"sensor\":\"outdoor\",\"value\":25.6}";

void setup()
{
    Serial.begin(9600);
    Serial.println(json);   

    JsonParser<10> parser;
    JsonObject root = parser.parse(json);
    
    Serial.println((char*)root["sensor"]);
    Serial.println((double)root["value"]);
}

void loop()
{

}

json_arduino.ino

#include <json_arduino.h>

char json[] = "{\"sensor\":\"outdoor\",\"value\":25.6}";
    
void setup()
{
    Serial.begin(9600);
    Serial.println(json);
    
    token_list_t* token_list = create_token_list(20);
    
    json_to_token_list(json, token_list);

    Serial.println(json_get_value(token_list,"sensor"));
    Serial.println(atof(json_get_value(token_list,"value")));
    
    release_token_list(token_list);
}

void loop()
{

}

None.ino

char json[] = "{\"sensor\":\"outdoor\",\"value\":25.6}";

void setup()
{
    Serial.begin(9600);
    Serial.println(json);
    Serial.println("outdoor");
    Serial.println(25.6);
}

void loop()
{

}