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78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
// ArduinoJson - arduinojson.org
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// Copyright Benoit Blanchon 2014-2021
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// MIT License
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//
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// This example shows how to generate a JSON document with ArduinoJson.
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//
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// https://arduinojson.org/v6/example/generator/
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#include <ArduinoJson.h>
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void setup() {
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// Initialize Serial port
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Serial.begin(9600);
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while (!Serial) continue;
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// Allocate the JSON document
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//
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// Inside the brackets, 200 is the RAM allocated to this document.
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// Don't forget to change this value to match your requirement.
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// Use arduinojson.org/v6/assistant to compute the capacity.
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StaticJsonDocument<200> doc;
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// StaticJsonObject allocates memory on the stack, it can be
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// replaced by DynamicJsonDocument which allocates in the heap.
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//
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// DynamicJsonDocument doc(200);
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// Add values in the document
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//
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doc["sensor"] = "gps";
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doc["time"] = 1351824120;
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// Add an array.
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//
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JsonArray data = doc.createNestedArray("data");
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data.add(48.756080);
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data.add(2.302038);
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// Generate the minified JSON and send it to the Serial port.
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//
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serializeJson(doc, Serial);
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// The above line prints:
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// {"sensor":"gps","time":1351824120,"data":[48.756080,2.302038]}
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// Start a new line
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Serial.println();
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// Generate the prettified JSON and send it to the Serial port.
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//
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serializeJsonPretty(doc, Serial);
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// The above line prints:
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// {
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// "sensor": "gps",
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// "time": 1351824120,
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// "data": [
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// 48.756080,
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// 2.302038
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// ]
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// }
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}
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void loop() {
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// not used in this example
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}
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// See also
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// --------
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//
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// https://arduinojson.org/ contains the documentation for all the functions
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// used above. It also includes an FAQ that will help you solve any
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// serialization problem.
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//
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// The book "Mastering ArduinoJson" contains a tutorial on serialization.
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// It begins with a simple example, like the one above, and then adds more
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// features like serializing directly to a file or an HTTP request.
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// Learn more at https://arduinojson.org/book/
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// Use the coupon code TWENTY for a 20% discount ❤❤❤❤❤
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