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sensebox.ino
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sensebox.ino
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/*
SenseBox Home - Citizen Sensingplatform
Version: 2.1
Date: 2015-09-09
Homepage: http://www.sensebox.de
Author: Jan Wirwahn, Institute for Geoinformatics, University of Muenster
Note: Sketch for SenseBox Home Kit
Email: support@sensebox.de
*/
#include <Wire.h>
#include "HDC100X.h"
#include "BMP280.h"
#include <Makerblog_TSL45315.h>
#include <SPI.h>
#include <Ethernet.h>
#include <avr/pgmspace.h>
//SenseBox ID
#define SENSEBOX_ID "5719c4037514d05c121e317c"
//Sensor IDs
#define TEMPSENSOR_ID "5719c4037514d05c121e3182"
#define HUMISENSOR_ID "5719c4037514d05c121e3181"
#define PRESSURESENSOR_ID "5719c4037514d05c121e3180"
#define LUXSENSOR_ID "5719c4037514d05c121e317f"
#define UVSENSOR_ID "5719c4037514d05c121e317e"
#define NIEDERSCHLAGSSENSOR_ID "572135af24a2dbec11b57203"
// niederschlag
#define PIN1 5
#define PIN2 4
#define MILLILITER_PRO_KIPPUNG 60
// wait one hour to sense rain: 3600000
#define MILLISEKUNDEN_BIS_ZUR_NEUEN_MESSUNG 10000
#define NIEDERSCHLAGSFLAECHE_IN_CM2 100
uint32_t milliliter_gekippt;
uint32_t start_der_niederschalgsmessung;
bool war_schon_bei_PIN1;
//Configure ethernet connection
IPAddress myIp(192, 168, 42, 42);
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
char server[] = "www.opensensemap.org";
EthernetClient client;
//Load sensors
Makerblog_TSL45315 TSL = Makerblog_TSL45315(TSL45315_TIME_M4);
HDC100X HDC(0x43);
BMP280 BMP;
//measurement variables
float temperature = 0;
float humidity = 0;
double tempBaro, pressure;
uint32_t lux;
uint16_t uv;
int messTyp;
#define UV_ADDR 0x38
#define IT_1 0x1
const unsigned long postingInterval = 60000;
unsigned long oldTime = -postingInterval;
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
// start the Ethernet connection:
Serial.println(F("SenseBox Home software version 2.1"));
Serial.println();
Serial.print(F("Starting ethernet connection..."));
if (Ethernet.begin(mac) == 0) {
Serial.println(F("Failed to configure Ethernet using DHCP"));
Ethernet.begin(mac, myIp);
}
Serial.print(F("IP: "));
Serial.print(Ethernet.localIP());
Serial.print(F(" Gateway: "));
Serial.println(Ethernet.gatewayIP());
delay(1000);
//Initialize sensors
Serial.print(F("Initializing sensors..."));
Wire.begin();
Wire.beginTransmission(UV_ADDR);
Wire.write((IT_1<<2) | 0x02);
Wire.endTransmission();
delay(500);
HDC.begin(HDC100X_TEMP_HUMI,HDC100X_14BIT,HDC100X_14BIT,DISABLE);
TSL.begin();
BMP.begin();
BMP.setOversampling(3);
Serial.println(F("done!"));
Serial.println(F("Starting loop."));
temperature = HDC.getTemp();
setup_niederschlag();
}
void loop()
{
// if there are incoming bytes available
// from the server, read them and print them:
if (client.available()) {
char c = client.read();
Serial.print(c);
}
if (millis() - oldTime > postingInterval) {
oldTime = millis();
// Maintain Ethernet DHCP Lease //
// see https://forum.sensebox.de/t/keine-daten-mehr-nach-ein-paar-tagen-betrieb/345/7?u=niccokunzmann
Ethernet.maintain();
//-----Pressure-----//
Serial.println(F("Posting pressure"));
messTyp = 2;
char result = BMP.startMeasurment();
if(result!=0){
delay(result);
result = BMP.getTemperatureAndPressure(tempBaro,pressure);
postObservation(pressure, PRESSURESENSOR_ID, SENSEBOX_ID);
Serial.print(F("Temp_baro = "));Serial.println(tempBaro,2);
Serial.print(F("Pressure = "));Serial.println(pressure,2);
} else {
Serial.print(F("Error: "));Serial.println((int)BMP.getError());
}
delay(2000);
//-----Humidity-----//
Serial.println(F("Posting humidity"));
messTyp = 2;
humidity = HDC.getHumi();
Serial.print(F("Humidity = ")); Serial.println(humidity);
postObservation(humidity, HUMISENSOR_ID, SENSEBOX_ID);
delay(2000);
//-----Temperature-----//
Serial.println(F("Posting temperature"));
messTyp = 2;
temperature = HDC.getTemp();
//Serial.println(temperature,2);
Serial.print(F("Temperature = "));Serial.println(temperature);
postObservation(temperature, TEMPSENSOR_ID, SENSEBOX_ID);
delay(2000);
//-----Lux-----//
Serial.println(F("Posting illuminance"));
messTyp = 1;
lux = TSL.readLux();
Serial.print(F("Illumi = ")); Serial.println(lux);
postObservation(lux, LUXSENSOR_ID, SENSEBOX_ID);
delay(2000);
//UV intensity
messTyp = 1;
uv = getUV();
Serial.print(F("UV = ")); Serial.println(uv);
postObservation(uv, UVSENSOR_ID, SENSEBOX_ID);
}
loop_niederschlag();
}
void postObservation(float measurement, String sensorId, String boxId){
char obs[10];
if (messTyp == 1) dtostrf(measurement, 5, 0, obs);
else if (messTyp == 2) dtostrf(measurement, 5, 2, obs);
Serial.println(obs);
//json must look like: {"value":"12.5"}
//post observation to: http://opensensemap.org:8000/boxes/boxId/sensorId
Serial.println(F("connecting..."));
String value = "{\"value\":";
value += obs;
value += "}";
if (client.connect(server, 8000))
{
Serial.println(F("connected"));
// Make a HTTP Post request:
client.print(F("POST /boxes/"));
client.print(boxId);
client.print(F("/"));
client.print(sensorId);
client.println(F(" HTTP/1.1"));
// Send the required header parameters
client.print(F("Host: "));
client.println(server);
client.println(F("Content-Type: application/json"));
client.println(F("Connection: close"));
client.print(F("Content-Length: "));
client.println(value.length());
client.println();
// Send the data
client.print(value);
client.println();
}
waitForResponse();
}
void waitForResponse()
{
// if there are incoming bytes available
// from the server, read them and print them:
boolean repeat = true;
do{
if (client.available())
{
char c = client.read();
Serial.print(c);
}
// if the servers disconnected, stop the client:
if (!client.connected())
{
Serial.println();
Serial.println(F("disconnecting."));
client.stop();
repeat = false;
}
}
while (repeat);
}
uint16_t getUV(){
byte msb=0, lsb=0;
uint16_t uvValue;
Wire.requestFrom(UV_ADDR+1, 1); //MSB
delay(1);
if(Wire.available()) msb = Wire.read();
Wire.requestFrom(UV_ADDR+0, 1); //LSB
delay(1);
if(Wire.available()) lsb = Wire.read();
uvValue = (msb<<8) | lsb;
return uvValue*5;
}
//////////////////// Niederschlag ///////////////////////
void setup_niederschlag() {
// put your setup code here, to run once:
Serial.begin(9600);
pinMode(PIN1, INPUT);
pinMode(PIN2, INPUT);
digitalWrite(PIN1, HIGH);
digitalWrite(PIN2, HIGH);
milliliter_gekippt = 0;
war_schon_bei_PIN1 = false;
start_der_niederschalgsmessung = millis();
}
void loop_niederschlag() {
// put your main code here, to run repeatedly:
if (digitalRead(PIN1) == LOW) {
war_schon_bei_PIN1 = true;
}
if (digitalRead(PIN2) == LOW && war_schon_bei_PIN1) {
milliliter_gekippt += MILLILITER_PRO_KIPPUNG;
war_schon_bei_PIN1 = false;
Serial.print(F("gekippt: ")); Serial.print(milliliter_gekippt); Serial.println(F("ml"));
}
if (millis() - start_der_niederschalgsmessung > MILLISEKUNDEN_BIS_ZUR_NEUEN_MESSUNG) {
Serial.println(F("Neuer Niederschlagswert: ")); Serial.print(milliliter_gekippt); Serial.println(F("ml"));
double niederschlag_in_litern_pro_quadratmeter_pro_stunde =
(double)milliliter_gekippt / 1000.0 * // milliliter -> liter
10000.0 / NIEDERSCHLAGSFLAECHE_IN_CM2 *
3600000.0 / MILLISEKUNDEN_BIS_ZUR_NEUEN_MESSUNG; // cm2 -> m2
Serial.print(F("Niederschlag in l/m2/h="));
Serial.println(niederschlag_in_litern_pro_quadratmeter_pro_stunde);
milliliter_gekippt = 0;
start_der_niederschalgsmessung = millis();
postObservation(niederschlag_in_litern_pro_quadratmeter_pro_stunde, NIEDERSCHLAGSSENSOR_ID, SENSEBOX_ID);
}
}