基于Arduino的互联网气象数据传输与展示

### 基于Arduino的互联网气象数据传输与展示 在物联网应用中，将传感器数据传输到互联网进行存储和展示是一项常见需求。本文将介绍如何使用Arduino实现温度传感器数据的采集，并将数据发送到Pachube平台进行存储和可视化展示。 #### 代码实现 以下是实现该功能的完整代码： ```cpp // Project 47 - Based on the Pachube Arduino examples #include <SPI.h> #include <Ethernet.h> #include <OneWire.h> #include <DallasTemperature.h> #define SHARE_FEED_ID 10722 // this is your Pachube feed ID #define UPDATE_INTERVAL 10000 // if the connection is good wait 10 seconds before // updating again - should not be less than 5 #define RESET_INTERVAL 10000 // if connection fails/resets wait 10 seconds before trying // again - should not be less than 5 #define PACHUBE_API_KEY "066ed6ea1d1073600e5b44b35e8a399697d66532c3e736c77dc11123dfbfe12f" // fill in your API key // Data wire is plugged into pin 3 on the Arduino #define ONE_WIRE_BUS 3 #define TEMPERATURE_PRECISION 12 // Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas // temperature ICs) OneWire oneWire(ONE_WIRE_BUS); // Pass our oneWire reference to Dallas Temperature. DallasTemperature sensors(&oneWire); // arrays to hold device addresses DeviceAddress insideThermometer = { 0x10, 0x7A, 0x3B, 0xA9, 0x01, 0x08, 0x00, 0xBF }; DeviceAddress outsideThermometer = { 0x10, 0xCD, 0x39, 0xA9, 0x01, 0x08, 0x00, 0xBE}; byte mac[] = { 0xCC, 0xAC, 0xBE, 0xEF, 0xFE, 0x91 }; // make sure this is unique on your // network byte ip[] = { 192, 168, 0, 104 }; // no DHCP so we set our own IP address byte remoteServer[] = { 173, 203, 98, 29 }; // pachube.com Client localClient(remoteServer, 80); unsigned int interval; char buff[64]; int pointer = 0; char pachube_data[70]; char *found; boolean ready_to_update = true; boolean reading_pachube = false; boolean request_pause = false; boolean found_content = false; unsigned long last_connect; int content_length; int itempC, itempF, etempC, etempF; void setupEthernet(){ resetEthernetShield(); delay(500); interval = UPDATE_INTERVAL; Serial.println("setup complete"); } void clean_buffer() { pointer = 0; memset(buff,0,sizeof(buff)); } void resetEthernetShield(){ Serial.println("reset ethernet"); Ethernet.begin(mac, ip); } void pachube_out(){ getTemperatures(); if (millis() < last_connect) last_connect = millis(); if (request_pause){ if ((millis() - last_connect) > interval){ ready_to_update = true; reading_pachube = false; request_pause = false; } } if (ready_to_update){ Serial.println("Connecting..."); if (localClient.connect()) { sprintf(pachube_data,"%d,%d,%d,%d",itempC, itempF, etempC, etempF); Serial.print("Sending: "); Serial.println(pachube_data); content_length = strlen(pachube_data); Serial.println("Updating."); localClient.print("PUT /v1/feeds/"); localClient.print(SHARE_FEED_ID); localClient.print(".csv HTTP/1.1\nHost: api.pachube.com\nX-PachubeApiKey: "); localClient.print(PACHUBE_API_KEY); localClient.print("\nUser-Agent: Beginning Arduino – Project 47"); localClient.print("\nContent-Type: text/csv\nContent-Length: "); localClient.print(content_length); localClient.print("\nConnection: close\n\n"); localClient.print(pachube_data); localClient.print("\n"); ready_to_update = false; reading_pachube = true; request_pause = false; interval = UPDATE_INTERVAL; } else { Serial.print("connection failed!"); ready_to_update = false; reading_pachube = false; request_pause = true; last_connect = millis(); interval = RESET_INTERVAL; setupEthernet(); } } while (reading_pachube){ while (localClient.avail ```