지금 오렌지보드wifi로 미세먼지 정보 불러오기를 하고 있는데
#include <SPI.h>
#include "WizFi250.h"
char ssid[] = "SSID"; // your network SSID (name)
char pass[] = "PASS"; // your network password
int status = WL_IDLE_STATUS; // the Wifi radio's status
//Ubidots information
#define APIKEY "APIKEY"
#define CITY "CITY"
#define VERSION "1.3"
char server[] = "openapi.airkorea.or.kr";
unsigned long lastConnectionTime = 0; // last time you connected to the server, in milliseconds
const unsigned long postingInterval = 60000L; // delay between updates, in milliseconds
boolean getIsConnected = false;
String rcvbuf;
String pm25;
// Initialize the Ethernet client object
WiFiClient client;
void httpRequest();
void printWifiStatus();
void setup()
{
// initialize serial for debugging
Serial.begin(115200);
Serial.println(F("\r\nSerial Init"));
WiFi.init();
// check for the presence of the shield
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
// don't continue
while (true);
}
// attempt to connect to WiFi network
while ( status != WL_CONNECTED) {
Serial.print("Attempting to connect to WPA SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network
status = WiFi.begin(ssid, pass);
}
Serial.println("You're connected to the network");
printWifiStatus();
}
void loop() {
// if there's incoming data from the net connection send it out the serial port
// this is for debugging purposes only
while (client.available()) {
char c = client.read();
if ( c != NULL ) {
if (rcvbuf.length() > 50)
rcvbuf = "";
rcvbuf += c;
Serial.write(c);
}
}
// if 10 seconds have passed since your last connection,
// then connect again and send data
if (millis() - lastConnectionTime > postingInterval) {
httpRequest();
}
rcvbuf = "";
}
// this method makes a HTTP connection to the server
void httpRequest() {
Serial.println();
// close any connection before send a new request
// this will free the socket on the WiFi shield
client.stop();
// if there's a successful connection
if (client.connect(server, 80)) {
Serial.println("Connecting...");
// send the HTTP PUT request
client.print(F("GET /openapi/services/rest/ArpltnInforInqireSvc/getMsrstnAcctoRltmMesureDnsty?stationName="));
client.print(CITY);
client.print(F("&dataTerm=daily&pageNo=1&numOfRows=10&ServiceKey="));
client.print(APIKEY);
client.print(F("&ver="));
client.print(VERSION);
client.print(F(" HTTP/1.1\r\n"));
//client.print(F("Host: openapi.gbis.go.kr\r\n"));
client.print(F("Host: openapi.airkorea.or.kr\r\n"));
client.print(F("Connection: close\r\n"));
client.print(F("\r\n\r\n"));
// note the time that the connection was made
lastConnectionTime = millis();
getIsConnected = true;
}
else {
// if you couldn't make a connection
Serial.println("Connection failed");
getIsConnected = false;
}
}
void printWifiStatus() {
// print the SSID of the network you're attached to
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your WiFi shield's IP address
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print the received signal strength
long rssi = WiFi.RSSI();
Serial.print("Signal strength (RSSI):");
Serial.print(rssi);
Serial.println(" dBm");
}
이 코드에 lcd함수를 어디 어디에 넣어야 하나요?
사용하는 lcd는 1602 캐릭터 LCD(16×2) 입니다
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