You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
61 lines
1.5 KiB
61 lines
1.5 KiB
3 years ago
|
// ArduinoJson - https://arduinojson.org
|
||
|
|
// Copyright Benoit Blanchon 2014-2021
|
||
|
|
// MIT License
|
||
|
|
//
|
||
|
|
// This example shows how to generate a JSON document with ArduinoJson.
|
||
|
|
|
||
|
|
#include <iostream>
|
||
|
|
#include "ArduinoJson.h"
|
||
|
|
|
||
|
|
int main() {
|
||
|
|
// Allocate the JSON document
|
||
|
|
//
|
||
|
|
// Inside the brackets, 200 is the RAM allocated to this document.
|
||
|
|
// Don't forget to change this value to match your requirement.
|
||
|
|
// Use https://arduinojson.org/v6/assistant to compute the capacity.
|
||
|
|
StaticJsonDocument<200> doc;
|
||
|
|
|
||
|
|
// StaticJsonObject allocates memory on the stack, it can be
|
||
|
|
// replaced by DynamicJsonDocument which allocates in the heap.
|
||
|
|
//
|
||
|
|
// DynamicJsonDocument doc(200);
|
||
|
|
|
||
|
|
// StaticJsonObject allocates memory on the stack, it can be
|
||
|
|
// replaced by DynamicJsonDocument which allocates in the heap.
|
||
|
|
//
|
||
|
|
// DynamicJsonDocument doc(200);
|
||
|
|
|
||
|
|
// Add values in the document
|
||
|
|
//
|
||
|
|
doc["sensor"] = "gps";
|
||
|
|
doc["time"] = 1351824120;
|
||
|
|
|
||
|
|
// Add an array.
|
||
|
|
//
|
||
|
|
JsonArray data = doc.createNestedArray("data");
|
||
|
|
data.add(48.756080);
|
||
|
|
data.add(2.302038);
|
||
|
|
|
||
|
|
// Generate the minified JSON and send it to STDOUT
|
||
|
|
//
|
||
|
|
serializeJson(doc, std::cout);
|
||
|
|
// The above line prints:
|
||
|
|
// {"sensor":"gps","time":1351824120,"data":[48.756080,2.302038]}
|
||
|
|
|
||
|
|
// Start a new line
|
||
|
|
std::cout << std::endl;
|
||
|
|
|
||
|
|
// Generate the prettified JSON and send it to STDOUT
|
||
|
|
//
|
||
|
|
serializeJsonPretty(doc, std::cout);
|
||
|
|
// The above line prints:
|
||
|
|
// {
|
||
|
|
// "sensor": "gps",
|
||
|
|
// "time": 1351824120,
|
||
|
|
// "data": [
|
||
|
|
// 48.756080,
|
||
|
|
// 2.302038
|
||
|
|
// ]
|
||
|
|
// }
|
||
|
|
}
|