#include <ArduinoJson.h>
int sensorA0=51;
float Temperature=28;
StaticJsonDocument<200> doc;
// Inside the brackets, 200 is the RAM allocated to this document.
// Don't forget to change this value to match your requirement.
// Use arduinojson.org/v6/assistant to compute the capacity.
void JSON(){
JsonObject desired = doc.createNestedObject("desired");
JsonObject reported = doc.createNestedObject("reported");
reported["D1_Temperature"] = Temperature;
reported["D1_Humidity"] = sensorA0;
}
void setup() {
// Initialize Serial port
Serial.begin(9600);
while (!Serial) continue;
JSON();
String data = doc.as<String>();
const char* data_t = data.c_str();
serializeJsonPretty(doc, Serial);
// The above line prints:
/*
{
"desired": {},
"reported": {
"D1_Temperature": 28,
"D1_Humidity": 51
}
*/
}
// Start a new line
Serial.println();
Serial.println(data_t);
// The above line prints:
//{"desired":{},"reported":{"D1_Temperature":23,"D1_Humidity":455}}
void loop() {
// not used in this example
}
百度天工JSON數據格式
串口顯示效果
使用ArduinoJson庫的串口打印,前面爲啥會有一段亂碼???不知道,但是並不影響數據上傳,管他呢 ^ _ ^。有知道的大神麻煩解釋一下,謝謝,看着挺彆扭的,我這裏開發板使用的是小黑板esp8266。