2012-09-12 20:02:09 +00:00
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/*
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Copyright (C) 2012 Nathanaël Restori
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2012-09-17 17:43:24 +00:00
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use, copy,
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modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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2012-09-12 20:02:09 +00:00
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*/
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2012-09-05 18:01:37 +00:00
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#include <Wire.h>
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#include <SPI.h>
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#include <Ethernet.h>
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#include "BMP085.h"
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2012-09-12 19:29:43 +00:00
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#include "Chronodot.h"
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2012-09-05 18:01:37 +00:00
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#include "DHT.h"
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#include "TSL2561.h"
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2012-09-12 19:29:43 +00:00
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#include "WebServer.h"
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2012-09-05 18:01:37 +00:00
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2012-09-12 19:29:43 +00:00
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#define TIMEZONE 7200 // 2 hours
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#define DHTPIN 2
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#define DHTTYPE DHT22
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#define PREFIX ""
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2012-09-05 18:01:37 +00:00
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#define NTP_PACKET_SIZE 48
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static uint8_t mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
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static IPAddress ip = IPAddress(192, 168, 1, 210);
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static IPAddress timeserver = IPAddress(192, 43, 244, 18);
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2012-09-17 17:43:24 +00:00
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P(indexHtml) = "<!DOCTYPE html><html><head><meta charset='utf-8'/\
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><title>Station Météo</title><style>html, body{ba\
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ckground: #000;color: #fff;}body{font-family: 'De\
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jaVu Sans', Verdana, Arial, sans-serif;font-size:\
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100%;margin: 0;padding: 0;}#home{background: #00\
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0;color: #fff;margin: 1em;padding: 0;}#home h1{co\
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lor: #f7c000;font-size: 2em;margin: 1em;text-alig\
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n: center;}#home p{background: #111;border: 1px s\
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olid #444;font-size: 1.5em;list-style-type: none;\
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padding: 0;width: 100%;text-align: center;}#home \
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table{background: #111;border: 1px solid #444;fon\
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t-size: 1.5em;list-style-type: none;padding: 0;wi\
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dth: 100%;text-align: center;}#footer{background:\
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#000;color: #888;font-size: 0.8em;margin: 1em;te\
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xt-align: center;padding: 0;}</style></head><body\
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><div id='home'><h1>Station Météo</h1><table><tr>\
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<th>Temps</th><th>T [°C]</th><th>P [Pa]</th><th>A\
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lt [m]</th><th>Hr [%]</th><th>Lx [lux]</th></tr><\
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tr><td>0</td><td>0</td><td>0</td><td>0</td><td>0<\
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/td><td>0</td></tr></table><p><label>Intervale de\
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mise à jour (en secondes) : </label><input id='i\
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nterval' type='number' value=2/></p></div><div id\
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='footer'> par Nathanaël Restori </div><script>fu\
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nction updateInfo(){var xhr=new XMLHttpRequest();\
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xhr.open('GET', '/sensors.json');xhr.onreadystate\
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change=function(){if (xhr.readyState==4 && xhr.st\
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atus==200){var response=JSON.parse(xhr.responseTe\
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xt);var rows=document.getElementsByTagName('tr');\
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var cell=rows[1].firstChild;var index=0;while (ce\
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ll){cell.firstChild.nodeValue=response.sensors[in\
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dex].data;cell=cell.nextSibling;index++;}}};xhr.s\
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end(null);}updateInfo();var updateID=setInterval(\
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updateInfo, 2000);var interval=document.getElemen\
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tById('interval');interval.addEventListener('chan\
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ge', function(e){clearInterval(updateID);updateID\
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=setInterval(updateInfo, e.target.value*1000);}, \
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true);</script></body></html>";
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2012-09-05 18:01:37 +00:00
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// no-cost stream operator as described at
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// http://sundial.org/arduino/?page_id=119
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template<class T>
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inline Print &operator <<(Print &obj, T arg)
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{ obj.print(arg); return obj; }
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BMP085 bmp;
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2012-09-12 19:29:43 +00:00
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Chronodot chronodot;
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2012-09-05 18:01:37 +00:00
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DHT dht(DHTPIN, DHTTYPE);
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TSL2561 tsl(TSL2561_ADDR_FLOAT);
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WebServer webserver(PREFIX, 80);
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byte packetBuffer[ NTP_PACKET_SIZE];
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EthernetUDP Udp;
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2012-09-17 17:43:24 +00:00
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void defaultCmd(WebServer &server, WebServer::ConnectionType type,
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char *url_tail, bool tail_complete) {
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2012-09-05 18:01:37 +00:00
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server.httpSuccess();
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server.printP(indexHtml);
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}
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2012-09-17 17:43:24 +00:00
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void sensorsJsonCmd(WebServer &server, WebServer::ConnectionType type,
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char *url_tail, bool tail_complete) {
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2012-09-05 18:01:37 +00:00
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float temperature = bmp.readTemperature();
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int32_t pressure = bmp.readPressure();
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float altitude = bmp.readAltitude();
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2012-09-15 10:25:54 +00:00
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float humidity = dht.readHumidity();
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2012-09-05 18:01:37 +00:00
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uint32_t lum = tsl.getFullLuminosity();
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uint16_t lightIr = lum >> 16;
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uint16_t lightFull = lum & 0xFFFF;
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DateTime time = chronodot.now();
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server.httpSuccess("application/json");
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server << "{ \"sensors\": ["
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2012-09-17 17:43:24 +00:00
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<< "{\"data\":\"" << time.hour() << ":" << time.minute()
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<< ":" << time.second() << " " << time.day() << "/"
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<< time.month() << "/" << time.year() << "\"},"
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2012-09-05 18:01:37 +00:00
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<< "{\"data\":" << temperature << "},"
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<< "{\"data\":" << pressure << "},"
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<< "{\"data\":" << altitude << "},"
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<< "{\"data\":" << humidity << "},"
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<< "{\"data\":" << tsl.calculateLux(lightFull, lightIr) << "}"
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<< "] }";
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}
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2012-09-12 19:29:43 +00:00
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// Taken from http://arduino.cc/en/Tutorial/UdpNtpClient .
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2012-09-08 20:00:20 +00:00
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void sendNTPpacket() {
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2012-09-12 19:29:43 +00:00
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// set all bytes in the buffer to 0
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memset(packetBuffer, 0, NTP_PACKET_SIZE);
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// Initialize values needed to form NTP request
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// (see URL above for details on the packets)
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packetBuffer[0] = 0b11100011; // LI, Version, Mode
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packetBuffer[1] = 0; // Stratum, or type of clock
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packetBuffer[2] = 6; // Polling Interval
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packetBuffer[3] = 0xEC; // Peer Clock Precision
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// 8 bytes of zero for Root Delay & Root Dispersion
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packetBuffer[12] = 49;
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packetBuffer[13] = 0x4E;
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packetBuffer[14] = 49;
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packetBuffer[15] = 52;
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// 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);
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Udp.endPacket();
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Serial.println("Sending ntp packet");
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delay(1000);
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if ( Udp.parsePacket() ) {
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// We've received a packet, read the data from it
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2012-09-17 17:43:24 +00:00
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Udp.read(packetBuffer,NTP_PACKET_SIZE); // read the packet
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// into the buffer
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2012-09-12 19:29:43 +00:00
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2012-09-17 17:43:24 +00:00
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// the timestamp starts at byte 40 of the received packet and is
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// four bytes, or two words, long. First, esxtract the two
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// words:
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2012-09-12 19:29:43 +00:00
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2012-09-17 17:43:24 +00:00
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unsigned long highWord = word(packetBuffer[40],
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packetBuffer[41]);
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unsigned long lowWord = word(packetBuffer[42],
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packetBuffer[43]);
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2012-09-12 19:29:43 +00:00
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// combine the four bytes (two words) into a long integer
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// this is NTP time (seconds since Jan 1 1900):
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unsigned long secsSince1900 = highWord << 16 | lowWord;
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2012-09-17 17:43:24 +00:00
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// Unix time starts on Jan 1 1970. In seconds, that's
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// 2208988800:
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2012-09-12 19:29:43 +00:00
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const unsigned long seventyYears = 2208988800UL;
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// subtract seventy years:
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unsigned long epoch = secsSince1900 - seventyYears + TIMEZONE;
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Serial.println("Adjusting time");
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chronodot.adjust(DateTime(epoch));
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}
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2012-09-05 18:01:37 +00:00
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}
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void setup() {
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Serial.begin(9600);
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//----- Ethernet/WebServer
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Serial.println("INIT Ethernet");
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Ethernet.begin(mac, ip);
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webserver.begin();
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webserver.setDefaultCommand(&defaultCmd);
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webserver.addCommand("sensors.json", &sensorsJsonCmd);
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//----- Sensors
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Serial.println("INIT Sensors");
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bmp.begin();
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dht.begin();
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tsl.begin();
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chronodot.begin();
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2012-09-17 17:43:24 +00:00
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//tsl.setGain(TSL2561_GAIN_0X); // bright situtations
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tsl.setGain(TSL2561_GAIN_16X); // dim situations
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2012-09-05 18:01:37 +00:00
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2012-09-17 17:43:24 +00:00
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tsl.setTiming(TSL2561_INTEGRATIONTIME_13MS); // bright light
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//tsl.setTiming(TSL2561_INTEGRATIONTIME_101MS); // medium light
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//tsl.setTiming(TSL2561_INTEGRATIONTIME_402MS); // dim light
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2012-09-10 15:07:09 +00:00
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2012-09-05 18:01:37 +00:00
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Udp.begin(8888);
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2012-09-08 20:00:20 +00:00
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sendNTPpacket();
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2012-09-05 18:01:37 +00:00
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}
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void loop() {
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webserver.processConnection();
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delay(500);
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}
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