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TM/arduino/WeatherStationWeb/WeatherStationWeb.ino

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Initializing TM repository
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#include <Wire.h>
#include <SPI.h>
#include <Ethernet.h>
#include "WebServer.h"
#include "BMP085.h"
#include "DHT.h"
#include "TSL2561.h"
#include "Chronodot.h"
#define TIMEZONE 7200 // 2 hours
#define DHTPIN 2
#define DHTTYPE DHT22
#define PREFIX ""
#define NTP_PACKET_SIZE 48
static uint8_t mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
static IPAddress ip = IPAddress(192, 168, 1, 210);
static IPAddress timeserver = IPAddress(192, 43, 244, 18);
P(indexHtml) = "<!DOCTYPE html><html><head><meta charset='utf-8' /><title>Station Météo</title>"
"<style>html, body{background: #000;color: #fff;}body{font-family: 'DejaVu Sans', Verdana, Arial, sans-serif;font-size: 100%;margin: 0;padding: 0;}#home{background: #000;color: #fff;margin: 1em;padding: 0;}#home h1{color: #f7c000;font-size: 2em;margin: 1em;text-align: center;}#home p{background: #111;border: 1px solid #444;font-size: 1.5em;list-style-type: none;padding: 0;width: 100%;text-align: center;}#home table{background: #111;border: 1px solid #444;font-size: 1.5em;list-style-type: none;padding: 0;width: 100%;text-align: center;}#home ul#links li{font-weight: bold;margin: 0;padding: 0.8em;text-align: center;}#footer{background: #000;color: #888;font-size: 0.8em;margin: 1em;text-align: center;padding: 0;}</style>"
"</head><body>"
"<div id='home'><h1>Station Météo</h1>"
"<table><tr><th>Temps</th><th>T [°C]</th><th>P [Pa]</th><th>Alt [m]</th><th>Hr [%]</th><th>Lx [lux]</th></tr>"
"<tr><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td></tr></table>"
"<p><label>Intervale de mise à jour (en secondes) : </label><input id='interval' type='number' value=2 /></p></div><div id='footer'>par Nathanal Restori</div>"
"<script>function updateInfo(){var xhr=new XMLHttpRequest();xhr.open('GET', '/sensors.json');xhr.onreadystatechange=function(){if (xhr.readyState==4 && xhr.status==200){var response=JSON.parse(xhr.responseText);var rows=document.getElementsByTagName('tr');var cell=rows[1].firstChild;var index=0;while (cell){cell.firstChild.nodeValue=response.sensors[index].data;cell=cell.nextSibling;index++;}}};xhr.send(null);}updateInfo();var updateID=setInterval(updateInfo, 2000);var interval=document.getElementById('interval');interval.addEventListener('change', function(e){clearInterval(updateID);updateID=setInterval(updateInfo, e.target.value*1000);}, true);</script>"
"</body></html>";
// no-cost stream operator as described at
// http://sundial.org/arduino/?page_id=119
template<class T>
inline Print &operator <<(Print &obj, T arg)
{ obj.print(arg); return obj; }
BMP085 bmp;
DHT dht(DHTPIN, DHTTYPE);
TSL2561 tsl(TSL2561_ADDR_FLOAT);
Chronodot chronodot;
WebServer webserver(PREFIX, 80);
byte packetBuffer[ NTP_PACKET_SIZE];
EthernetUDP Udp;
void defaultCmd(WebServer &server, WebServer::ConnectionType type, char *url_tail, bool tail_complete) {
server.httpSuccess();
server.printP(indexHtml);
}
void sensorsJsonCmd(WebServer &server, WebServer::ConnectionType type, char *url_tail, bool tail_complete) {
float temperature = bmp.readTemperature();
int32_t pressure = bmp.readPressure();
float altitude = bmp.readAltitude();
float humidity = dht.readHumidity();
uint32_t lum = tsl.getFullLuminosity();
uint16_t lightIr = lum >> 16;
uint16_t lightFull = lum & 0xFFFF;
DateTime time = chronodot.now();
server.httpSuccess("application/json");
server << "{ \"sensors\": ["
<< "{\"data\":\"" << time.hour() << ":" << time.minute() << ":" << time.second() << " " << time.day() << "/" << time.month() << "/" << time.year() << "\"},"
<< "{\"data\":" << temperature << "},"
<< "{\"data\":" << pressure << "},"
<< "{\"data\":" << altitude << "},"
<< "{\"data\":" << humidity << "},"
<< "{\"data\":" << tsl.calculateLux(lightFull, lightIr) << "}"
<< "] }";
}
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void sendNTPpacket() {
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// set all bytes in the buffer to 0
memset(packetBuffer, 0, NTP_PACKET_SIZE);
// Initialize values needed to form NTP request
// (see URL above for details on the packets)
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
// 8 bytes of zero for Root Delay & Root Dispersion
packetBuffer[12] = 49;
packetBuffer[13] = 0x4E;
packetBuffer[14] = 49;
packetBuffer[15] = 52;
// all NTP fields have been given values, now
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// you can send a packet requesting a timestamp:
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Udp.beginPacket(timeserver, 123); //NTP requests are to port 123
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Udp.write(packetBuffer,NTP_PACKET_SIZE);
Udp.endPacket();
Serial.println("Sending ntp packet");
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delay(1000);
if ( Udp.parsePacket() ) {
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// We've received a packet, read the data from it
Udp.read(packetBuffer,NTP_PACKET_SIZE); // read the packet into the buffer
//the timestamp starts at byte 40 of the received packet and is four bytes,
// or two words, long. First, esxtract the two words:
unsigned long highWord = word(packetBuffer[40], packetBuffer[41]);
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unsigned long lowWord = word(packetBuffer[42], packetBuffer[43]);
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// combine the four bytes (two words) into a long integer
// this is NTP time (seconds since Jan 1 1900):
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unsigned long secsSince1900 = highWord << 16 | lowWord;
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// Unix time starts on Jan 1 1970. In seconds, that's 2208988800:
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const unsigned long seventyYears = 2208988800UL;
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// subtract seventy years:
unsigned long epoch = secsSince1900 - seventyYears + TIMEZONE;
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Serial.println("Adjusting time");
chronodot.adjust(DateTime(epoch));
}
}
void setup() {
Serial.begin(9600);
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pinMode(5, OUTPUT);
SPI.begin();
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//----- Ethernet/WebServer
Serial.println("INIT Ethernet");
Ethernet.begin(mac, ip);
webserver.begin();
webserver.setDefaultCommand(&defaultCmd);
webserver.addCommand("sensors.json", &sensorsJsonCmd);
//----- Sensors
Serial.println("INIT Sensors");
bmp.begin();
dht.begin();
tsl.begin();
chronodot.begin();
// You can change the gain on the fly, to adapt to brighter/dimmer light situations
//tsl.setGain(TSL2561_GAIN_0X); // set no gain (for bright situtations)
tsl.setGain(TSL2561_GAIN_16X); // set 16x gain (for dim situations)
// Changing the integration time gives you a longer time over which to sense light
// longer timelines are slower, but are good in very low light situtations!
tsl.setTiming(TSL2561_INTEGRATIONTIME_13MS); // shortest integration time (bright light)
//tsl.setTiming(TSL2561_INTEGRATIONTIME_101MS); // medium integration time (medium light)
//tsl.setTiming(TSL2561_INTEGRATIONTIME_402MS); // longest integration time (dim light)
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Udp.begin(8888);
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sendNTPpacket();
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}
void loop() {
webserver.processConnection();
delay(500);
}
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