So I've done all the boring copy and paste projects now I'm trying to mash one together; I'm not sure what I'm doing wrong but I think I'm slowly starting to make things more complicated...
The aim of this code is to write values to twitter every hour and values to the SD card every 5 minutes later I want to add Prowl notifications.
I've tried to break everything down into sub routines but I think I'm getting a memory issue right after I fetch the seconds since 1900.
Any help would be greatly appreciated
Code: Select all
#include <SPI.h>
#include <Ethernet.h>
#include <EthernetUdp.h>
#include <Twitter.h>
#include <SD.h>
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
unsigned int localPort = 8888;
IPAddress timeServer(192, 43, 244, 18);
const int NTP_PACKET_SIZE= 48;
byte packetBuffer[ NTP_PACKET_SIZE];
EthernetUDP Udp;
long Myhour = 25;
Twitter twitter("Secret Stuff"); // twitter
String dataString;
void setup()
{
Serial.begin(9600);
Serial.println("Connecting Nets");
pinMode(4, OUTPUT);
digitalWrite(4, HIGH); //disable SD card
pinMode(10, OUTPUT);
if (Ethernet.begin(mac) == 0)
{
Serial.println("Failed to configure Ethernet using DHCP");
return;
}
Udp.begin(localPort);
// data logger
digitalWrite(10, HIGH); //disable Nets
Serial.print("Initializing SD card...");
if (!SD.begin(4))
{
Serial.println("Card failed, or not present");
// don't do anything more:
return;
}
else
{
Serial.println("card initialized.");
}
pinMode(0, INPUT);
pinMode(1, INPUT);
}
void loop()
{
Serial.println("Getting time");
long secsSince1900 = getSecs();
if (secsSince1900 > 1)
{
const unsigned long seventyYears = 2208988800UL;
dataString = "Secsince1900,";
dataString += secsSince1900;
dataString += (",Pin 0,");
dataString += ((((analogRead(0) / 1023) * 5) * 100) - 273);
dataString += (",Pin 1,");
dataString += ((((analogRead(1) / 1023) * 5) * 100) - 273);
if (Myhour != (((secsSince1900 - seventyYears) % 86400L) / 3600))
{
postTweet(dataString);
}
Myhour = (((secsSince1900 - seventyYears) % 86400L) / 3600); // print the hour (86400 equals secs per day)
Serial.println(Myhour);
}
Write2SD(dataString);
Serial.println("wait....");
delay(5900); // add a zero later
}
long getSecs ()
{
digitalWrite(4, HIGH); //disable SD card
sendNTPpacket(timeServer);
delay(1000);
Serial.println("Got time");
unsigned long secsSince1900 = 0;
if ( Udp.parsePacket() )
{
Udp.read(packetBuffer,NTP_PACKET_SIZE);
unsigned long highWord = word(packetBuffer[40], packetBuffer[41]);
unsigned long lowWord = word(packetBuffer[42], packetBuffer[43]);
secsSince1900 = highWord << 16 | lowWord;
}
else
{
unsigned long secsSince1900 = 0;
}
return (long) &secsSince1900;
}
void Write2SD(String dataString)
{
//data logger
pinMode(10, OUTPUT);
digitalWrite(10, HIGH); //disable Nets
File dataFile = SD.open("datalog.csv", FILE_WRITE);
if (dataFile) // if the file is available, write to it:
{
dataFile.println(dataString);
dataFile.close();
}
else
{
Serial.println("error opening datalog.csv");
}
pinMode(4, OUTPUT);
digitalWrite(4, HIGH); //disable SD card
}
void postTweet(String tweet)
{
char msg[125];
pinMode(4, OUTPUT);
digitalWrite(4, HIGH); //disable SD card
String termTweet = tweet + "\0" ;// Terminate the tweet with a null
Serial.print(termTweet);
Serial.println(" - Terminated tweet");
int twtlen = (termTweet.length()+3); // count the characters, add 3 just in case
Serial.print(twtlen);
Serial.println(" - Tweet length");
termTweet.toCharArray(msg,twtlen); // Convert it to an array called msg
Serial.print("Attempted tweet ");
Serial.println(msg);
// tweet.toCharArray(msg,twtlen);
Serial.println("connecting ...");
if (twitter.post(msg)) {
// Specify &Serial to output received response to Serial.
// If no output is required, you can just omit the argument, e.g.
// int status = twitter.wait();
int status = twitter.wait(&Serial);
if (status == 200) {
Serial.println("OK.");
delay (120000); // Wait two minutes before doing anything after a tweet (don't spam!)
}
else {
Serial.print("failed : code ");
Serial.println(status);
}
}
else {
Serial.println("connection failed.");
}
}
unsigned long sendNTPpacket(IPAddress& address)
{
memset(packetBuffer, 0, NTP_PACKET_SIZE);
packetBuffer[0] = 0b11100011; // LI, Version, Mode
packetBuffer[1] = 0; // Stratum, or type of clock
packetBuffer[2] = 6; // Polling Interval
packetBuffer[3] = 0xEC; // Peer Clock Precision
packetBuffer[12] = 49;
packetBuffer[13] = 0x4E;
packetBuffer[14] = 49;
packetBuffer[15] = 52;
Udp.beginPacket(address, 123); //NTP requests are to port 123
Udp.write(packetBuffer,NTP_PACKET_SIZE);
Udp.endPacket();
}