在标准 Cosm Arduino 传感器客户端示例中添加了温度和湿度传感器 (DHT11)。工作一会儿，然后数据流平线。
知道可能导致问题的原因吗？
非常感谢
斯塔扎
/**
* Cosm Arduino sensor client example.
*
`` * This sketch demonstrates connecting an Arduino to Cosm (https://cosm.com),
* using the new Arduino library to send and receive data.
/**
DHT11 temp and humidity sensor added to the COSM example code
**/
#include <SPI.h>
#include <Ethernet.h>
#include <HttpClient.h>
#include <Cosm.h>
#include <dht11.h>
//DHT11*********************************************************************
dht11 DHT11;
#define DHT11PIN 7//pin DHT11 sensor is connected to
//DHT11*********************************************************************
#define API_KEY "xxxxxx" // your Cosm API key
#define FEED_ID xxxxx // your Cosm feed ID
// MAC address for your Ethernet shield
byte mac[] = {xxxx, xxxx, xxxx, xxxx, xxxx, xxxx};
// Analog pin which we're monitoring (0 and 1 are used by the Ethernet shield)
int sensorPin = 2;
unsigned long lastConnectionTime = 0; // last time we connected to Cosm
const unsigned long connectionInterval = 15000; // delay between connecting to Cosm in milliseconds
// Initialize the Cosm library
// Define the string for our datastream ID
char sensorId[] = "sensor_reading";
char sensorId2[] = "DHT11_humidity_sensor_reading";
char sensorId3[] = "DHT11_temperature_sensor_reading";
CosmDatastream datastreams[] = {
CosmDatastream(sensorId, strlen(sensorId), DATASTREAM_FLOAT),
CosmDatastream(sensorId2, strlen(sensorId2), DATASTREAM_FLOAT),
CosmDatastream(sensorId3, strlen(sensorId3), DATASTREAM_FLOAT),
};
// Wrap the datastream into a feed
CosmFeed feed(FEED_ID, datastreams, 3 /* number of datastreams */);
EthernetClient client;
CosmClient cosmclient(client);
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
Serial.println("Cosm Sensor Client Example");
Serial.println("==========================");
Serial.println("Initializing network");
while (Ethernet.begin(mac) != 1) {
Serial.println("Error getting IP address via DHCP, trying again...");
delay(15000);
}
Serial.println("Network initialized");
Serial.println();
}
void loop() {
// main program loop
if (millis() - lastConnectionTime > connectionInterval) {
//check DHT11 sensor is working OK
int chk = DHT11.read(DHT11PIN);
Serial.print("Read DHT11 sensor: ");
switch (chk)
{
case 0: Serial.println("OK"); break;
case -1: Serial.println("Checksum error"); break;
case -2: Serial.println("Time out error"); break;
default: Serial.println("Unknown error"); break;
}
sendData(); // send data to Cosm
getData(); // read the datastream back from Cosm
lastConnectionTime = millis(); // update connection time so we wait before connecting again
}
}
// send the supplied values to Cosm, printing some debug information as we go
void sendData() {
int sensorValue = analogRead(sensorPin);
int humidityDHT11 = ((float)DHT11.humidity);
int tempDHT11 = ((float)DHT11.temperature);
datastreams[0].setFloat(sensorValue);
datastreams[1].setFloat(humidityDHT11); //DHT11 humidity value*******
datastreams[2].setFloat(tempDHT11); //DHT11 temp value********
Serial.print("Read sensor value ");
Serial.println(datastreams[0].getFloat());
Serial.print("Read DHT11 humidity sensor value ");
Serial.println(datastreams[1].getFloat());
Serial.print("Read DHT11 temperature sensor value ");
Serial.println(datastreams[2].getFloat());
Serial.println("Uploading to Cosm");
int ret = cosmclient.put(feed, API_KEY);
Serial.print("PUT return code: ");
Serial.println(ret);
Serial.println();
}
// get the value of the datastream from Cosm, printing out the value we received
void getData() {
Serial.println("Reading data from Cosm");
int ret = cosmclient.get(feed, API_KEY);
Serial.print("GET return code: ");
Serial.println(ret);
if (ret > 0) {
Serial.print("Datastream is: ");
Serial.println(feed[0]);
Serial.print("Sensor value is: ");
Serial.println(feed[0].getFloat());
Serial.print("Datastream is: ");
Serial.println(feed[1]);
Serial.print("Sensor value is: ");
Serial.println(feed[1].getFloat());
Serial.print("Datastream is: ");
Serial.println(feed[2]);
Serial.print("Sensor value is: ");
Serial.println(feed[2].getFloat());
}
Serial.println();
}