将JSON数据(Twitter(Temboo))从Processing发送到Arduino



我正在做一个学生项目,并尝试将JSON数据(基于twitter标签"#tune")从Processing发送到Arduino,但是方法"myPort.write(status);"不能与JSON一起使用,我在网上环顾四周,但不确定要使用什么命令 - 我走在正确的轨道上吗?代码如下:

加工:

import processing.serial.*;  //Serial connection for Arduino
import java.lang.reflect.Method;
import com.temboo.core.*;  // Temboo library
import com.temboo.Library.Twitter.Search.*;  // Temboo Twitter search library
// Create a session using your Temboo account application details
TembooSession session = new TembooSession("MYUSERNAME", "MYTEMBOOAPPNAME", "MYTEMBOOCODE");
// Setup objects
Serial myPort;  // Create object from Serial class
int portNo = 7;  // Define portNo as int
int baudRate = 9600;  // Define baudRate as int
void setup() {
  // Run the Tweets Choreo function
  runTweetsChoreo();
  String portName = Serial.list()[portNo]; // Setup String for port ([7] is the port number for my machine)
  myPort = new Serial(this, portName, baudRate);  // Setting up serial port
}
void runTweetsChoreo() {
  // Create the Choreo object using your Temboo session
  Tweets tweetsChoreo = new Tweets(session);
  // Set credential
  tweetsChoreo.setCredential("ArduinoUkulele");
  // Set inputs
  // Run the Choreo and store the results
  TweetsResultSet tweetsResults = tweetsChoreo.run();
  // retrieve the results as JSON
  JSONObject results = parseJSONObject(tweetsResults.getResponse());
  // retrieve the statuses from the results
  JSONArray statuses = results.getJSONArray("statuses");
  // loop through the statuses
  for (int i = 0; i < statuses.size(); i++){
    JSONObject status = statuses.getJSONObject(i);
    println(status.getString("text"));
    println(" -- -- -- -- -- -- -- -- -- -- -- -- -- -- ");
    myPort.write(status);  // THIS IS THE CODE NOT WORKING WITH JSON
  }
}

Arduino:

char val; // Data received from the serial port
int ledPin = 13; // Set the pin to digital I/O 13
void setup(){
  pinMode(ledPin, OUTPUT); // Set pin as OUTPUT
  Serial.begin(9600); // Start serial communication at 9600 bps
}
void loop(){
  if (Serial.available()) { // If data is available to read,
    val = Serial.read(); // read it and store it in val
    Serial.println(val);
    delay(10); // Wait 10 milliseconds for next reading
  }
}

我确定我只是在寻找某个命令 - 一旦我收到数据,我只是想根据收到的新主题标签打开 LED。任何帮助将不胜感激!

干杯

亚瑟

write() 方法不能将 JSONObject 作为输入,只能接受 byte[]String。但是你已经有了你需要的一切:只需使用 getString() 方法,因为你在上面两行(使用适当的键字符串,你应该从你在 JSON 之上使用的 API 中知道):

 myPort.write(status.getString("text"));

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