/*
APRS Weather Station
coded by Yang Lei
20120412
Beta 1.8
*/
#include <Adafruit_BMP085.h>
#include <DHT.h>
#include <Wire.h>
#include <SPI.h>
#include <Dhcp.h>
#include <Dns.h>
#include <Ethernet.h>
#include <EthernetClient.h>
#include <EthernetServer.h>
#include <EthernetUdp.h>
#include <util.h>
#define DHTTYPE DHT21
#define DHTPIN 3
//****************************************************************************
//Some network settings below.
byte mac[] = {0xDE, 0xAD, 0xBE, 0x00, 0xFE, 0x00};//Set your MAC Address here.
char SVR_NAME[] = "hangzhou.aprs2.net";
#define SVR_PORT 14580
// define your callsign, passcode and location below
#define callsign "yourcall-13"
#define passcode "your passcode"
#define location "0000.00N/00000.00E"
#define VER "2.0"
#define SVR_PROMPT "javAPRSSrvr"
#define SVR_VERIFIED "verified"
int REPORT_INTERVAL = 10;
#define TO_LINE 10000
//****************************************************************************
EthernetClient client;//Create a client
#define DHTTYPE DHT22
#define DHTPIN 3
DHT dht(DHTPIN, DHTTYPE);
Adafruit_BMP085 bmp;
void setup()
{
Serial.begin(9600);
delay(2000);
Serial.println();
Serial.println("APRS WX Station");
bmp.begin();
initNet();
}
void loop()
{
float h =0;
float t =0;
float b =0;
boolean sent = false;
if ( dht.read() )
{
h = dht.readHumidity();
t = dht.readTemperature(true);
b = bmp.readPressure();
Serial.print(h);
Serial.print(" ");
Serial.print(t);
Serial.print(" ");
Serial.println(b);
if ( client.connect(SVR_NAME, SVR_PORT) )
{
Serial.println("Server connected");
if ( wait4content(&client, SVR_PROMPT, 11) )
{
Serial.println("Prompt ok");
client.print("user ");
client.print(callsign);
client.print(" pass ");
client.print(passcode);
client.print(" vers APRSduino ");
client.println(VER);
if ( wait4content(&client, SVR_VERIFIED, 8) )
{
Serial.println("Login ok");
client.print(callsign);
client.print(">APRS,TCPIP*:");
client.print("!");
client.print(location);
client.print("_");
client.print("000/000g000t");
sendTemp(t);
client.print("r000p000P000h");
sendHumi(h);
client.print("b");
sendBaro(b);
client.print("APRSWXBox ");//Sending comments
client.println(VER);
Serial.println("Data sent ok");
delay(5000);
client.stop();
Serial.println("Server disconnected");
delay((long)REPORT_INTERVAL*60L*1000L);
//delay(30*1000L);
sent = true;
} // if login
else
{
Serial.println("Login failed.");
}
} // if prompt
else
{
Serial.println("No prompt from the server.");
}
} // if connect
else
{
Serial.println("Can not connect to the server.");
}
if ( !sent )
{
initNet();
}
} // if dht.read()
else
{
Serial.println("DHT fail");
}
delay(5000);
}
void initNet()
{
Serial.println("Initiating net");
do {
} while ( Ethernet.begin(mac) == 0 );
delay(1000);//wait for the Ethernet Shield for 1 second
Serial.print("Net inited, IP:");
Ethernet.localIP().printTo(Serial);
Serial.println();
}
void sendTemp(float t)
{
int i=t+0.5;
if ( i<0 ) {
client.print("-");
i = -i;
if ( i>99 )
i=99;
else if ( i<10 )
client.print("0");
} else {
if ( i<10 )
client.print("00");
else if ( i<100 )
client.print("0");
}
client.print(i);
}
void sendHumi(float h)
{
int i = h+0.5;
if ( i>99 ) i=99;
if ( i<10 )
client.print("0");
client.print(i);
}
void sendBaro(float b)
{
int i = b/10;
if (i > 99999){
i = 99999;
client.print(i);}
if (i > 10000 && i <= 99999){
client.print(i);}
if (i < 10000 && i >= 1000){
client.print(0);
client.print(i);}
if (i < 1000 && i > 0){
client.print(00);
client.print(i);}
if(i<0){
client.print(00000);}
}
boolean wait4content(Stream* stream, char *target, int targetLen)
{
size_t index = 0; // maximum target string length is 64k bytes!
int c;
boolean ret = false;
unsigned long timeBegin;
delay(50);
timeBegin = millis();
while ( true )
{
// wait and read one byte
while ( !stream->available() )
{
if ( millis() - timeBegin > TO_LINE )
{
break;
}
delay(2);
}
if ( stream->available() ) {
c = stream->read();
// judge the byte
if ( c == target[index] )
{
index ++;
if ( !target[index] )
// return true if all chars in the target match
{
ret = true;
break;
}
}
else if ( c>=0 )
{
index = 0; // reset index if any char does not match
} else // timed-out for one byte
{
break;
}
}
else // timed-out
{
break;
}
}
return ret;
}
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