سلام، من یک کدی نوشتم که میتونه چند تا سنسور از جمله dht11 , mq131,mq135,dsm501 رو به اردوینو وصل کنه تا روی ال سی دی نمایش بده اما من به یک مشکلی برخوردم، کد dsm501 رو از لینک زیر کپی کردم و همه کد ال ای دی هاش رو پاک کردم تا با دستگاهم سازگار بشه ، بعدش وقتی اومدم این کد را داخل loop قرار بدم ، دیگه اپدیت نشد روی ال سی دی و کل دیتا سنسور ها طول میکشید تا دوباره اپدیت شده رو نشون بده ، من کدی میخواستم اینجوری ، اول دیتا سنسور ها رو نشون بده (که نشون میده) بعد برای 20 ثانیه dsm501 دیتاش اپدیت شه (که نمیشه) لطفا کمک کنید.
کد dsm501:
https://www.hackster.io/mircemk/arduino-air-quality-monitor-with-dsm501a-sensor-b4f8fc
کد اولیه من:
/* MQUnifiedsensor Library - reading an MQ135Demonstrates the use a MQ135 sensor.
Library originally added 01 may 2019
by Miguel A Califa, Yersson Carrillo, Ghiordy Contreras, Mario RodriguezAdded example
modified 23 May 2019
by Miguel CalifaUpdated library usage
modified 26 March 2020
by Miguel CalifaWiring:
MQSensorsLib_Docs/static/img/MQ_Arduino.PNG at master · miguel5612/MQSensorsLib_Docs · GitHub
Please make sure arduino A0 pin represents the analog input configured on #define pinThis example code is in the public domain.
*/
//Include the library
#include <MQUnifiedsensor.h>
#include <MQUnifiedsensor.h>
#include “DHT.h”
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,28,4);//Definitions
#define DHTPIN 52 // paye data sensor be 4 arduino vasl shode
#define DHTTYPE DHT11 // DHT 11
#define placa “Arduino MEGA”
#define Voltage_Resolution 5
#define pin A0 //Analog input 0 of your arduino
#define type “MQ-135” //MQ135
#define ADC_Bit_Resolution 10 // For arduino UNO/MEGA/NANO
#define RatioMQ135CleanAir 3.6//RS / R0 = 3.6 ppm
#define pindng A1
#define typesty “MQ-131”
#define RatioMQ131CleanAir 15
//#define calibration_button 13 //Pin to calibrate your sensor//Declare Sensor
MQUnifiedsensor MQ131(placa, Voltage_Resolution, ADC_Bit_Resolution, pindng, typesty);DHT dht(DHTPIN, DHTTYPE);//sakht class
MQUnifiedsensor MQ135(placa, Voltage_Resolution, ADC_Bit_Resolution, pin, type);
void setup() {//Init the serial port communication - to debug the library
Serial.begin(9600); //Init serial port
MQ131.setRegressionMethod(1); //_PPM = aratio^b
dht.begin();
//Set math model to calculate the PPM concentration and the value of constants
MQ135.setRegressionMethod(1); //_PPM = aratio^b
/***************************** MQ Init /
//Remarks: Configure the pin of arduino as input.
/***********/
MQ131.init();
MQ135.init();
lcd.init(); // initialize the lcd
lcd.init();
lcd.backlight();
lcd.setCursor(0,0);
/
//If the RL value is different from 10K please assign your RL value with the following method:
MQ135.setRL(10);
/
/ MQ CAlibration ********************************************/
// Explanation:
// In this routine the sensor will measure the resistance of the sensor supposedly before being pre-heated
// and on clean air (Calibration conditions), setting up R0 value.
// We recomend executing this routine only on setup in laboratory conditions.
// This routine does not need to be executed on each restart, you can load your R0 value from eeprom.
// Acknowledgements: Gas Sensor Technology Unveiled: What You Need to Know
Serial.print(“Calibrating please wait.”);
float calcR0 = 0;
float calcR01 = 0;
for(int i = 1; i<=10; i ++)
{
MQ135.update(); // Update data, the arduino will read the voltage from the analog pin
calcR0 += MQ135.calibrate(RatioMQ135CleanAir);
MQ131.update(); // Update data, the arduino will read the voltage from the analog pin
calcR01 += MQ131.calibrate(RatioMQ131CleanAir);
Serial.print(“.”);
}
Serial.print(“\n”);
MQ135.setR0(calcR0/10);
MQ131.setR0(calcR01/10);if(isinf(calcR0)) {Serial.println(“Warning: Conection issue, R0 is infinite (Open circuit detected) please check your wiring and supply”); while(1);}
if(calcR0 == 0){Serial.println(“Warning: Conection issue found, R0 is zero (Analog pin shorts to ground) please check your wiring and supply”); while(1);}
float h = dht.readHumidity();
// Read temperature as Celsius (the default)
float t = dht.readTemperature();// Compute heat index in Celsius (isFahreheit = false)
float hic = dht.computeHeatIndex(t, h, false);
/***************************** MQ CAlibration ********************************************/
}void loop() {
float h = dht.readHumidity();
// Read temperature as Celsius (the default)
float t = dht.readTemperature();// Compute heat index in Celsius (isFahreheit = false)
float hic = dht.computeHeatIndex(t, h, false);
Serial.println(“Sampling…”);
MQ135.update(); // Update data, the arduino will read the voltage from the analog pinMQ135.setA(605.18); MQ135.setB(-3.937); // Configure the equation to calculate CO concentration value
float CO = MQ135.readSensor(); // Sensor will read PPM concentration using the model, a and b values set previously or from the setupMQ135.setA(77.255); MQ135.setB(-3.18); //Configure the equation to calculate Alcohol concentration value
float Alcohol = MQ135.readSensor(); // SSensor will read PPM concentration using the model, a and b values set previously or from the setupMQ135.setA(110.47); MQ135.setB(-2.862); // Configure the equation to calculate CO2 concentration value
float CO2 = MQ135.readSensor(); // Sensor will read PPM concentration using the model, a and b values set previously or from the setupMQ135.setA(44.947); MQ135.setB(-3.445); // Configure the equation to calculate Toluen concentration value
float Toluen = MQ135.readSensor(); // Sensor will read PPM concentration using the model, a and b values set previously or from the setupMQ135.setA(102.2 ); MQ135.setB(-2.473); // Configure the equation to calculate NH4 concentration value
float NH4 = MQ135.readSensor(); // Sensor will read PPM concentration using the model, a and b values set previously or from the setupMQ135.setA(34.668); MQ135.setB(-3.369); // Configure the equation to calculate Aceton concentration value
float Aceton = MQ135.readSensor(); // Sensor will read PPM concentration using the model, a and b values set previously or from the setup
MQ131.setA(23.943); MQ131.setB(-1.11); // Configure the equation to to calculate O3 concentration
MQ131.update(); // Update data, the arduino will read the voltage from the analog pin
MQ131.readSensorR0Rs(); // Sensor will read PPM concentration using the model, a and b values set previously or from the setup
// Will print the table on the serial port
float O3 = MQ131.readSensorR0Rs();
MQ131.setA(-462.43); MQ131.setB(-2.204);
MQ131.update();
MQ131.readSensorR0Rs();
float NOx = MQ131.readSensorR0Rs();
MQ131.setA(47.209); MQ131.setB(-1.186);
MQ131.update();
MQ131.readSensorR0Rs();
float CL2 = MQ131.readSensorR0Rs();
// Note: 400 Offset for CO2 source: Problems with MQ135 · Issue #29 · miguel5612/MQSensorsLib · GitHub
/*
Motivation:
We have added 400 PPM because when the library is calibrated it assumes the current state of the
air as 0 PPM, and it is considered today that the CO2 present in the atmosphere is around 400 PPM.
El gas del cambio climático marca un récord nunca visto en la historia humana
/
/
Exponential regression:
GAS | a | b
CO | 605.18 | -3.937
Alcohol | 77.255 | -3.18
CO2 | 110.47 | -2.862
Toluen | 44.947 | -3.445
NH4 | 102.2 | -2.473
Aceton | 34.668 | -3.369
*/
lcd.clear();
lcd.setCursor(0,0);
lcd.print(“Sampling…”);
delay(10000);
Serial.print(“Humidity: “);
Serial.print(h);
Serial.print(”%”);
Serial.print(" | ");
lcd.setCursor(0,0);
lcd.clear();
lcd.print(“Humidity: “);
lcd.print(h);
lcd.print(”%”);
lcd.setCursor(0,1);
lcd.print(“Temp: “);
lcd.print(t);
lcd.print(” *C”);
delay(5000);
lcd.clear();
lcd.print(“CO: “);
lcd.print(CO);
lcd.print(” PPM”);
lcd.setCursor(0,1);
lcd.print(“CO2: “);
lcd.print(CO2+400);
lcd.print(” PPM”);
delay(5000);
lcd.clear();
lcd.print(“O3: “);
lcd.print(O3);
lcd.print(” PPM”);
lcd.setCursor(0,1);
lcd.print(“CL2: “);
lcd.print(CL2);
lcd.print(” PPM”);
delay(5000);
lcd.clear();
lcd.print(“Aceton: “);
lcd.print(Aceton);
lcd.print(” PPM”);
lcd.setCursor(0,1);
lcd.print(“Toluen: “);
lcd.print(Toluen);
lcd.print(” PPM”);
delay(5000);
lcd.clear();
lcd.print(“NH4: “);
lcd.print(NH4);
lcd.print(” PPM”);
lcd.setCursor(0,1);
lcd.print(“NOx: “);
lcd.print(NOx);
lcd.print(” PPM”);
Serial.print(“Temperature: “);
Serial.print(t);
Serial.print(” *C “);
Serial.print(” | “);
Serial.print(“Heat index: “);
Serial.print(hic);
Serial.print(” *C “);
Serial.print(” | “);
Serial.print(“CO2:”);
Serial.print(CO2+400);
Serial.print(” PPM”);
Serial.print(” | “);
Serial.print(“CO:”);
Serial.print(CO);
Serial.print(” | “);
Serial.print(“Alcohol: “);
Serial.print(Alcohol);
Serial.print(” PPM”);
Serial.print(” | “);
Serial.print(“Toluen: “);
Serial.print(Toluen);
Serial.print(” PPM”);
Serial.print(” | “);
Serial.print(“NH4: “);
Serial.print(NH4);
Serial.print(” PPM”);
Serial.print(” | “);
Serial.print(“Aceton: “);
Serial.print(Aceton);
Serial.print(” PPM”);
Serial.print(” | “);
Serial.print(“Ozone: “);
Serial.print(O3);
Serial.print(” PPM”);
Serial.print(” | “);
Serial.print(“CL2: “);
Serial.print(CL2);
Serial.print(” PPM”);
Serial.print(” | “);
Serial.print(“NOx: “);
Serial.print(NOx);
Serial.print(” PPM”);
Serial.print(”\n”);
delay(5000); //Sampling frequency
}
