µracoli Manual Version foo

- µracoli
- User Guide
- Reference Guide

Gateway.ino

This sketch implements a COSM Gateway.

/*
Cosm temperature logger
This sketch is derived from PachubeClientString Example bundled with
Arduino. It receives a character line from temperature sensor and feeds
it to cosm.
Hardware:
- Radiofaro + DFRobot Ethernet Shield attached
*/
#include <SPI.h>
#include <Ethernet.h>
#include "HardwareRadio.h"
#define APIKEY "The quick brown fox" // replace your Pachube api key here
#define FEEDID 123456 // replace your feed ID
#define USERAGENT "Radiofaro" // user agent is the project name
// assign a MAC address for the ethernet controller.
// fill in your address here:
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
// fill in an available IP address on your network here,
// for manual configuration:
IPAddress ip(10,0,1,20);
// initialize the library instance:
EthernetClient client;
// if you don't want to use DNS (and reduce your sketch size)
// use the numeric IP instead of the name for the server:
IPAddress server(216,52,233,121); // numeric IP for api.pachube.com
//char server[] = "api.pachube.com"; // name address for pachube API
unsigned long lastConnectionTime = 0; // last time you connected to the server, in milliseconds
boolean lastConnected = false; // state of the connection last time through the main loop
const unsigned long postingInterval = 20*1000; //delay between updates to pachube.com
char ln[80]; /* max line length */
byte idx = 0;
byte lncnt = 0;
boolean hasData=0;
String dataString = "";
String addr_whitelist[] = {"0xFECA", "0xAFFE"};
void setup() {
Radio.begin();
Serial.begin(9600);
// give the ethernet module time to boot up:
delay(1000);
// start the Ethernet connection:
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
// DHCP failed, so use a fixed IP address:
Ethernet.begin(mac, ip);
}
}
boolean parse(char *ln)
{
byte i=0;
char *sarr[8];
char *s = ln;
boolean valid=0;
Serial.print("Line In: ");
Serial.print(ln); // line break already in line
/* tokenize to all space separated */
do{
if((*s==',') || (*s == '=')) *s=' ';
}while(*s++);
s=sarr[i++]=strtok(ln, " ");
dataString="";
do{
s=sarr[i++]=strtok(NULL, " ");
}while( (NULL != s) && (i<sizeof(sarr)/sizeof(sarr[0])) );
if(sarr[2][0]=='T' && sarr[4][0]=='V'){
s=sarr[3];
while(*s && (*s>='0' && *s<='9' || *s=='.' || *s=='-') ){
s++;
};
if(*s){ /* did not reach NULL terminator */
/* N.a.N. */
} else {
dataString += "temp,";
dataString += sarr[3];
dataString += "\nvolt,";
dataString += sarr[5];
valid = 1;
}
}
if(!valid){
Serial.println("Parsing error");
} else {
Serial.print("Parsed: ");
Serial.println(dataString);
}
return valid;
}
void loop() {
if (Radio.available() > 0)
{
char c = Radio.read();
if(c == '\0'){ /* unexpected input, restart */
idx = 0;
} else {
ln[idx] = c;
idx++;
}
ln[idx] = '\0';
if( ('\n' == c) || ('\r' == c) ) { /* line completed */
hasData = parse(ln);
lncnt++;
idx = 0;
}
}
// if there's incoming data from the net connection.
// send it out the serial port. This is for debugging
// purposes only:
if (client.available()) {
char c = client.read();
Serial.print(c);
}
// if there's no net connection, but there was one last time
// through the loop, then stop the client:
if (!client.connected() && lastConnected) {
Serial.println();
Serial.println("disconnecting.");
client.stop();
}
// if you're not connected, and ten seconds have passed since
// your last connection, then connect again and send data:
if(!client.connected() && (millis() - lastConnectionTime > postingInterval) && hasData>0) {
Serial.print("Pachube: ");
Serial.println(dataString);
sendData(dataString);
hasData=0;
}
// store the state of the connection for next time through
// the loop:
lastConnected = client.connected();
}
// this method makes a HTTP connection to the server:
void sendData(String thisData) {
// if there's a successful connection:
if (client.connect(server, 80)) {
Serial.println("connecting...");
// send the HTTP PUT request:
client.print("PUT /v2/feeds/");
client.print(FEEDID);
client.println(".csv HTTP/1.1");
client.println("Host: api.pachube.com");
client.print("X-pachubeApiKey: ");
client.println(APIKEY);
client.print("User-Agent: ");
client.println(USERAGENT);
client.print("Content-Length: ");
client.println(thisData.length());
// last pieces of the HTTP PUT request:
client.println("Content-Type: text/csv");
client.println("Connection: close");
client.println();
// here's the actual content of the PUT request:
client.println(thisData);
}
else {
// if you couldn't make a connection:
Serial.println("connection failed");
Serial.println();
Serial.println("disconnecting.");
client.stop();
}
// note the time that the connection was made or attempted:
lastConnectionTime = millis();
}