Schlagwort-Archive: Raumluftgüte

Sensoren4Sketch

  • 0.8 Verwendung der korrigierten Lib von RSTOIKA
  • Der R0 Wert kann automatisch zum Setzen in FHEM verwendet werde. Hiermit wird ein Button oben angezeigt. attr CO2_SZ setReading_R0 textField<br>
  • Einbrennzeit und Stabilisierung abwarten
  • Kalibrierung im Freien bei Windstille
  • Redesign MySensors 2.0
  • Grundwert R0Cor wird gesetzt, wenn CO2 < 390
  • Spezielle Lib ist für den Kalibierung – Button notwendig
  • EEPROM Speicherung R0Cor

MQ135lib.tar

//Sens4Sketch (Motion, Temperature, Humidity, CO2)

//v0.8 Corr. Lib von rstoica (set r0, correction) impl
//v0.7 set r0 to eeprom
//v0.6 SetR0-Button
//v0.5 Motion
//v0.4 autosetr0 if co2<400
//v0.3 api 2.0, redesign
//v0.2 CorrectedRZero basis for calculating r0
//G. Krocker K.-H. Wind et. al. ++++JH
//Caution: The Sketch erorder an amended mq135.h Library

//#define MY_DEBUG    // Enables debug messages in the serial log
#define MY_RADIO_NRF24
#include <SPI.h>
#include <MySensors.h>
#include <DHT.h>
#include <MQ135.h>
//----------------------------------------------------------------------------
// Timer
unsigned long SLEEP_TIME = 15*1000; // Sleep time between reads (in milliseconds)
//-----------------------------------------------------------------------------
//MOTION
#define DIGITAL_INPUT_SENSOR 3   // The digital input you attached your motion sensor.  (Only 2 and 3 generates interrupt!)
#define INTERRUPT DIGITAL_INPUT_SENSOR-3 // Usually the interrupt = pin -2 (on uno/nano anyway)
#define CHILD_ID_MOTION 8   // Id of the sensor child
MyMessage msgMotion(CHILD_ID_MOTION, S_MOTION);
//-----------------------------------------------------------------------------
// DHT22
#define CHILD_ID_HUM 0
#define CHILD_ID_TEMP 1
#define HUMIDITY_SENSOR_DIGITAL_PIN 4
DHT dht;
float lastTemp;
float lastHum;
boolean metric = true; 
MyMessage msgHum(CHILD_ID_HUM, V_HUM);
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
//-----------------------------------------------------------------------------
// MQ135
#define CHILD_ID_CO2C 24
#define CHILD_ID_CO2 25
#define CHILD_ID_R0C 26
#define CHILD_ID_R0 27
#define EEPROM_R0C 0
int C02;
int CO2C;
float R0;
float R0C;
float R02;
MQ135 gasSensor = MQ135(0);//PIN0 
MyMessage msgCO2C(CHILD_ID_CO2C, V_VAR1);
MyMessage msgCO2(CHILD_ID_CO2, V_VAR1);
MyMessage msgR0C(CHILD_ID_R0C, V_VAR1);
MyMessage msgR0(CHILD_ID_R0, V_VAR1);
//-----------------------------------------------------------------------------
void setup() {
//--------------------------------------------------------------------- 
 //R0C aus EEPROM sonst 55
dht.setup(HUMIDITY_SENSOR_DIGITAL_PIN);
pinMode(DIGITAL_INPUT_SENSOR, INPUT);
uint8_t R02 = loadState(EEPROM_R0C);
// get R0C from EEPROM
float R0C = R02 * 2;
if (R0C > 1.0 && R0C < 500.0)
{
Serial.print(F("Setting R0 from EEPROM: "));
}
else
{
Serial.print(F("Setting default R0C: "));
R0C = 50;
}
Serial.print(R0C);
Serial.println(F(""));
gasSensor.setRZero(R0C);
}
//-----------------------------------------------------------------------------
void presentation(){
sendSketchInfo("Sens4", "v0.7");
present(CHILD_ID_TEMP, S_TEMP);
present(CHILD_ID_HUM, S_HUM);
present(CHILD_ID_CO2C, S_CUSTOM);
present(CHILD_ID_CO2, S_CUSTOM);
present(CHILD_ID_R0C, S_CUSTOM);
present(CHILD_ID_R0, S_CUSTOM);
present(CHILD_ID_MOTION, S_MOTION);
}
//-----------------------------------------------------------------------------



void loop(){



//-----------------------------------------------------------------------------
//TEMP_FEUCHTE 

wait(dht.getMinimumSamplingPeriod());// TheoL
  float temperature = dht.getTemperature();
  if (isnan(temperature)) {
      Serial.println("Failed reading temperature from DHT");
  } else if (temperature != lastTemp) {
    lastTemp = temperature;
    if (!metric) {
      temperature = dht.toFahrenheit(temperature);
    }
   send(msgTemp.set(temperature, 1));
    Serial.print("T: ");
    Serial.println(temperature);
  }
  
  float humidity = dht.getHumidity();
  if (isnan(humidity)) {
      Serial.println("Failed reading humidity from DHT");
  } else if (humidity != lastHum) {
      lastHum = humidity;
      send(msgHum.set(humidity, 1));
      Serial.print("H: ");
      Serial.println(humidity);
  }
//-----------------------------------------------------------------------------  
//CO2
  float R0 = gasSensor.getRZero();
  float R0C = gasSensor.getCorrectedRZero(temperature, humidity);
  float CO2 = gasSensor.getPPM();
  float CO2C = gasSensor.getCorrectedPPM(temperature, humidity);
  
  Serial.print("R0: "); 
  Serial.println(R0);
  send(msgR0.set(R0,1));

  Serial.print("R0C: ");
  Serial.println(R0C);
  send(msgR0C.set(R0C,1));

  Serial.print("CO2: ");
  Serial.println(CO2);
  send(msgCO2.set(CO2,1));

  Serial.print("CO2C: ");
  Serial.println(CO2C);
  send(msgCO2C.set(CO2C,1));
  
  Serial.println();
// Grundwert CO2 < 400 ppm dann setze R0C in Lib
if (CO2C < 420)
{
  saveState(EEPROM_R0C, (uint8_t)(R0C/2));
  gasSensor.setRZero(R0C);
  send(msgR0C.set(R0C, 2));
  Serial.print(F("CO2 < 420: R0 gesetzt "));
}
//-----------------------------------------------------------------------------
//Read digital motion value
boolean tripped = digitalRead(DIGITAL_INPUT_SENSOR) == HIGH;
Serial.println(tripped);
send(msgMotion.set(tripped?"1":"0"));  
//-----------------------------------------------------------------------------
wait(SLEEP_TIME); //sleep for: sleepTime // byTheo: Changed
}
//-----------------------------------------------------------------------------
//incomingMessage
void receive(const MyMessage& message){
 Serial.println(F("Incoming Message:"));

if (message.isAck())
{
Serial.println(F("This is an ack from gateway"));
}

uint8_t sensor = message.sensor;
if (sensor == CHILD_ID_R0C)
{
float R0C = message.getFloat();

Serial.print(F("Incoming R0C: "));
Serial.print(R0C);
Serial.println(F(""));

saveState(EEPROM_R0C, (uint8_t)(R0C/2));
gasSensor.setRZero(R0C);
send(msgR0.set(R0C, 2));
}
}
//-----------------------------------------------------------------------------