Что делает:
- Датчик температуры и влажности на основе DHT11/DHT-22
Датчик движения - HC-SR501
Датчик открытия двери - простой геркон
Датчик дыма MQ2
Датчик освещенности - простой фоторезистр
- Добавлю переменные для PIR: время задержки, на какую ноду слать что сработал
Добавлю светодиод трехцветный для индикации состояния
КодПоказать
Код: Выделить всё
/**
* Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
*
* Documentation: http://www.mysensors.org
* Support Forum: http://forum.mysensors.org
*
* sensor using DHT11/DHT-22
* http://www.mysensors.org/build/humidity
* Connect the MQ2 sensor as follows :
*
* A H A >>> 5V
* B >>> A0
* H >>> GND
* B >>> 10K ohm >>> GND
* Gas code http://www.mysensors.org/build/gas
*/
// common
#include <SPI.h>
#include <MySensor.h>
#include <Wire.h> //gas
#include <DHT.h> // humidity
#include <Bounce2.h> // door
#define CHILD_ID_LIGHT 0
#define LIGHT_SENSOR_ANALOG_PIN 0
#define CHILD_ID_MQ 1
#define CHILD_ID_PIR 2
#define PIR_DIGITAL_INPUT_SENSOR_PIN 3 // The digital input you attached your motion sensor. (Only 2 and 3 generates interrupt!)
#define CHILD_ID_HUM 3
#define CHILD_ID_TEMP 4
#define HUMIDITY_SENSOR_DIGITAL_PIN 4 // humidi
#define CHILD_ID_DOOR 5
#define DOOR_PIN 5
// Ниже только для газа
/************************Hardware Related Macros************************************/
#define MQ_SENSOR_ANALOG_PIN (1) //define which analog input channel you are going to use
#define RL_VALUE (5) //define the load resistance on the board, in kilo ohms
#define RO_CLEAN_AIR_FACTOR (9.83) //RO_CLEAR_AIR_FACTOR=(Sensor resistance in clean air)/RO,
//which is derived from the chart in datasheet
/***********************Software Related Macros************************************/
#define CALIBARAION_SAMPLE_TIMES (50) //define how many samples you are going to take in the calibration phase
#define CALIBRATION_SAMPLE_INTERVAL (500) //define the time interal(in milisecond) between each samples in the
//cablibration phase
#define READ_SAMPLE_INTERVAL (50) //define how many samples you are going to take in normal operation
#define READ_SAMPLE_TIMES (5) //define the time interal(in milisecond) between each samples in
//normal operation
/**********************Application Related Macros**********************************/
#define GAS_LPG (0)
#define GAS_CO (1)
#define GAS_SMOKE (2)
/*****************************Globals***********************************************/
//VARIABLES
float Ro = 10000.0; // this has to be tuned 10K Ohm
int val = 0; // variable to store the value coming from the sensor
float valMQ =0.0;
float lastMQ =0.0;
float LPGCurve[3] = {2.3,0.21,-0.47}; //two points are taken from the curve.
//with these two points, a line is formed which is "approximately equivalent"
//to the original curve.
//data format:{ x, y, slope}; point1: (lg200, 0.21), point2: (lg10000, -0.59)
float COCurve[3] = {2.3,0.72,-0.34}; //two points are taken from the curve.
//with these two points, a line is formed which is "approximately equivalent"
//to the original curve.
//data format:{ x, y, slope}; point1: (lg200, 0.72), point2: (lg10000, 0.15)
float SmokeCurve[3] ={2.3,0.53,-0.44}; //two points are taken from the curve.
//with these two points, a line is formed which is "approximately equivalent"
//to the original curve.
//data format:{ x, y, slope}; point1: (lg200, 0.53), point2:(lg10000,-0.22)
// закончилось только для газа
// common
#define INTERRUPT PIR_DIGITAL_INPUT_SENSOR_PIN-2 // Usually the interrupt = pin -2 (on uno/nano anyway)
unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)
MySensor gw;
// humidity
DHT dht;
float lastTemp;
float lastHum;
boolean metric = true;
// door
Bounce debouncer = Bounce();
int oldValue=-1;
MyMessage msgLight(CHILD_ID_LIGHT, V_LIGHT_LEVEL);
int lastLightLevel; // light
MyMessage msgMq(CHILD_ID_MQ, V_LEVEL);
MyMessage msgHum(CHILD_ID_HUM, V_HUM);
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
MyMessage msgPir(CHILD_ID_PIR, V_TRIPPED);
MyMessage msgDoor(CHILD_ID_DOOR, V_TRIPPED);
void setup()
{
gw.begin();
// Humidity
dht.setup(HUMIDITY_SENSOR_DIGITAL_PIN);
// Send the Sketch Version Information to the Gateway
gw.sendSketchInfo("HumPirDoorGasLight", "1.0");
// light
gw.present(CHILD_ID_LIGHT, S_LIGHT_LEVEL);
//gas
gw.present(CHILD_ID_MQ, S_AIR_QUALITY);
Ro = MQCalibration(MQ_SENSOR_ANALOG_PIN); //Calibrating the sensor. Please make sure the sensor is in clean air
//when you perform the calibration
// humidity
gw.present(CHILD_ID_HUM, S_HUM);
gw.present(CHILD_ID_TEMP, S_TEMP);
// PIR
pinMode(PIR_DIGITAL_INPUT_SENSOR_PIN, INPUT); // sets the motion sensor digital pin as input
// Register all sensors to gw (they will be created as child devices)
gw.present(CHILD_ID_PIR, S_MOTION);
metric = gw.getConfig().isMetric;
// door
pinMode(DOOR_PIN,INPUT);
// Activate internal pull-up
digitalWrite(DOOR_PIN,HIGH);
// After setting up the button, setup debouncer
debouncer.attach(DOOR_PIN);
debouncer.interval(5);
// Register binary input sensor to gw (they will be created as child devices)
// You can use S_DOOR, S_MOTION or S_LIGHT here depending on your usage.
// If S_LIGHT is used, remember to update variable type you send in. See "msg" above.
gw.present(CHILD_ID_DOOR, S_DOOR);
}
void loop()
{
// light
int lightLevel = (1023-analogRead(LIGHT_SENSOR_ANALOG_PIN))/10.23;
Serial.println(lightLevel);
if (lightLevel != lastLightLevel) {
gw.send(msgLight.set(lightLevel));
lastLightLevel = lightLevel;
}
// gas
uint16_t valMQ = MQGetGasPercentage(MQRead(MQ_SENSOR_ANALOG_PIN)/Ro,GAS_CO);
Serial.println(val);
Serial.print("LPG:");
Serial.print(MQGetGasPercentage(MQRead(MQ_SENSOR_ANALOG_PIN)/Ro,GAS_LPG) );
Serial.print( "ppm" );
Serial.print(" ");
Serial.print("CO:");
Serial.print(MQGetGasPercentage(MQRead(MQ_SENSOR_ANALOG_PIN)/Ro,GAS_CO) );
Serial.print( "ppm" );
Serial.print(" ");
Serial.print("SMOKE:");
Serial.print(MQGetGasPercentage(MQRead(MQ_SENSOR_ANALOG_PIN)/Ro,GAS_SMOKE) );
Serial.print( "ppm" );
Serial.print("\n");
if (valMQ != lastMQ) {
gw.send(msgMq.set((int)ceil(valMQ)));
lastMQ = ceil(valMQ);
}
// Humidity
delay(dht.getMinimumSamplingPeriod());
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);
}
gw.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;
gw.send(msgHum.set(humidity, 1));
Serial.print("H: ");
Serial.println(humidity);
}
// PIR
// Read digital motion value
boolean tripped = digitalRead(PIR_DIGITAL_INPUT_SENSOR_PIN) == HIGH;
Serial.println(tripped);
gw.send(msgPir.set(tripped?"1":"0")); // Send tripped value to gw
// door
debouncer.update();
// Get the update value
int value = debouncer.read();
if (value != oldValue) {
// Send in the new value
gw.send(msgDoor.set(value==HIGH ? 1 : 0));
oldValue = value;
}
// Humidity
// gw.sleep(SLEEP_TIME); //sleep a bit
// PIR
gw.sleep(INTERRUPT,CHANGE, SLEEP_TIME);
}
// gas
/****************** MQResistanceCalculation ****************************************
Input: raw_adc - raw value read from adc, which represents the voltage
Output: the calculated sensor resistance
Remarks: The sensor and the load resistor forms a voltage divider. Given the voltage
across the load resistor and its resistance, the resistance of the sensor
could be derived.
************************************************************************************/
float MQResistanceCalculation(int raw_adc)
{
return ( ((float)RL_VALUE*(1023-raw_adc)/raw_adc));
}
/***************************** MQCalibration ****************************************
Input: mq_pin - analog channel
Output: Ro of the sensor
Remarks: This function assumes that the sensor is in clean air. It use
MQResistanceCalculation to calculates the sensor resistance in clean air
and then divides it with RO_CLEAN_AIR_FACTOR. RO_CLEAN_AIR_FACTOR is about
10, which differs slightly between different sensors.
************************************************************************************/
float MQCalibration(int mq_pin)
{
int i;
float val=0;
for (i=0;i<CALIBARAION_SAMPLE_TIMES;i++) { //take multiple samples
val += MQResistanceCalculation(analogRead(mq_pin));
delay(CALIBRATION_SAMPLE_INTERVAL);
}
val = val/CALIBARAION_SAMPLE_TIMES; //calculate the average value
val = val/RO_CLEAN_AIR_FACTOR; //divided by RO_CLEAN_AIR_FACTOR yields the Ro
//according to the chart in the datasheet
return val;
}
/***************************** MQRead *********************************************
Input: mq_pin - analog channel
Output: Rs of the sensor
Remarks: This function use MQResistanceCalculation to caculate the sensor resistenc (Rs).
The Rs changes as the sensor is in the different consentration of the target
gas. The sample times and the time interval between samples could be configured
by changing the definition of the macros.
************************************************************************************/
float MQRead(int mq_pin)
{
int i;
float rs=0;
for (i=0;i<READ_SAMPLE_TIMES;i++) {
rs += MQResistanceCalculation(analogRead(mq_pin));
delay(READ_SAMPLE_INTERVAL);
}
rs = rs/READ_SAMPLE_TIMES;
return rs;
}
/***************************** MQGetGasPercentage **********************************
Input: rs_ro_ratio - Rs divided by Ro
gas_id - target gas type
Output: ppm of the target gas
Remarks: This function passes different curves to the MQGetPercentage function which
calculates the ppm (parts per million) of the target gas.
************************************************************************************/
int MQGetGasPercentage(float rs_ro_ratio, int gas_id)
{
if ( gas_id == GAS_LPG ) {
return MQGetPercentage(rs_ro_ratio,LPGCurve);
} else if ( gas_id == GAS_CO ) {
return MQGetPercentage(rs_ro_ratio,COCurve);
} else if ( gas_id == GAS_SMOKE ) {
return MQGetPercentage(rs_ro_ratio,SmokeCurve);
}
return 0;
}
/***************************** MQGetPercentage **********************************
Input: rs_ro_ratio - Rs divided by Ro
pcurve - pointer to the curve of the target gas
Output: ppm of the target gas
Remarks: By using the slope and a point of the line. The x(logarithmic value of ppm)
of the line could be derived if y(rs_ro_ratio) is provided. As it is a
logarithmic coordinate, power of 10 is used to convert the result to non-logarithmic
value.
************************************************************************************/
int MQGetPercentage(float rs_ro_ratio, float *pcurve)
{
return (pow(10,( ((log(rs_ro_ratio)-pcurve[1])/pcurve[2]) + pcurve[0])));
}
