Updated Co2 Sensor
This commit is contained in:
Carsten Schmiemann
parent
1f100c6e69
commit
89267dd34e
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@ -12,5 +12,5 @@
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platform = atmelavr
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board = pro16MHzatmega328
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framework = arduino
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lib_deps = PMS Library, TaskScheduler, MH-Z19
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monitor_speed = 57600
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lib_deps = PMS Library, TaskScheduler
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monitor_speed = 9600
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92
src/main.cpp
92
src/main.cpp
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@ -1,47 +1,63 @@
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#include <Arduino.h>
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#include "MHZ19.h" // include main library
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#include <SoftwareSerial.h> // Remove if using HardwareSerial
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#include <SoftwareSerial.h>
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#include <SimpleModbusSlave.h>
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#include <TaskScheduler.h>
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#include <PMS.h>
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#define RX_PIN 9 // Rx pin which the MHZ19 Tx pin is attached to
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#define TX_PIN 10 // Tx pin which the MHZ19 Rx pin is attached to
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#define BAUDRATE 9600 // Native to the sensor (do not change)
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SoftwareSerial serial1(2, 3); // RX, TX
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SoftwareSerial serial2(4, 5); // RX, TX
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PMS pms(serial1);
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PMS::DATA data;
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Scheduler runner;
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MHZ19 myMHZ19; // Constructor for MH-Z19 class
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SoftwareSerial mySerial(RX_PIN, TX_PIN); // Constructor for Stream class *change for HardwareSerial, i.e. ESP32 ***
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void sensor_co2();
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Task t1(5000, TASK_FOREVER, &sensor_co2);
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//HardwareSerial mySerial(1); // ESP32 Example
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//////////////// MODBUS Registers ///////////////////
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enum
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{
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R00_Dust_10,
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R01_Dust_25,
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R02_Dust_100,
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R03_CO2_PPM,
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TOTAL_ERRORS,
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TOTAL_REGS_SIZE
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};
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unsigned int holdingRegs[TOTAL_REGS_SIZE]; // function 3 and 16 register array
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//////////////////////////////////////////////////////
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int PM10 = 0;
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int PM25 = 0;
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int PM100 = 0;
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int CO2 = 0;
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byte return1[9];
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byte return2[9];
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byte com[]={0xff,0x01,0x86,0x00,0x00,0x00,0x00,0x00,0x79};
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unsigned long getDataTimer = 0; // Variable to store timer interval
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void setup()
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{
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Serial.begin(57600); // For ESP32 baudarte is 115200 etc.
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mySerial.begin(BAUDRATE); // Begin Stream with MHZ19 baudrate
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//mySerial.begin(BAUDRATE, SERIAL_8N1, RX_PIN, TX_PIN); // ESP32 Example
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myMHZ19.begin(mySerial); // *Important, Pass your Stream reference
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myMHZ19.autoCalibration(); // Turn ABC ON. Disable with autoCalibration(false) (also default)
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void setup() {
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serial1.begin(9600);
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serial2.begin(9600);
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modbus_configure(9600, 6, 6, TOTAL_REGS_SIZE, 0); //Modbus via MAX485
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runner.init();
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runner.addTask(t1);
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t1.enable();
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}
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void loop()
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{
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if (millis() - getDataTimer >= 2000) // Check if interval has elapsed (non-blocking delay() equivilant)
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{
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int CO2; // Buffer for CO2
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CO2 = myMHZ19.getCO2(); // Request CO2 (as ppm)
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void loop() {
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runner.execute();
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holdingRegs[R00_Dust_10] = PM10;
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holdingRegs[R01_Dust_25] = PM25;
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holdingRegs[R02_Dust_100] = PM100;
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holdingRegs[R03_CO2_PPM] = CO2;
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holdingRegs[TOTAL_ERRORS] = modbus_update(holdingRegs);
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Serial.print("CO2 (ppm): ");
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Serial.println(CO2);
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if (pms.read(data)) {
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PM10 = (int)data.PM_AE_UG_1_0;
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PM25 = (int)data.PM_AE_UG_2_5;
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PM100 = (int)data.PM_AE_UG_10_0;
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}
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}
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float Temp; // Buffer for temperature
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Temp = myMHZ19.getTemperature(); // Request Temperature (as Celsius)
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Serial.print("Temperature (C): ");
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Serial.println(Temp);
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getDataTimer = millis(); // Update interval
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}
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void sensor_co2() {
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serial2.write(com,9);
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serial2.readBytes(return1,9);
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CO2 = return1[2]*256+return1[3];
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}
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@ -1,73 +0,0 @@
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#include <Arduino.h>
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#include <SoftwareSerial.h>
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#include <SimpleModbusSlave.h>
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#include <TaskScheduler.h>
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#include <PMS.h>
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SoftwareSerial pms7003(11, 12); // RX, TX
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SoftwareSerial mhz19(9, 10); // RX, TX
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PMS pms(pms7003);
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PMS::DATA data;
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Scheduler runner;
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void sensor_pms();
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Task t1(5000, TASK_FOREVER, &sensor_pms);
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//////////////// MODBUS Registers ///////////////////
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enum
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{
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R00_Dust_10,
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R01_Dust_25,
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R02_Dust_100,
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TOTAL_ERRORS,
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TOTAL_REGS_SIZE
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};
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unsigned int holdingRegs[TOTAL_REGS_SIZE]; // function 3 and 16 register array
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int PM10;
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int PM25;
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int PM100;
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//////////////////////////////////////////////////////
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void setup() {
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//Serial.begin(57600);
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//Serial.print("Starting up...");
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mhz19.begin(9600);
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pms7003.begin(9600);
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pinMode(8, OUTPUT); //MAX485 Tranmit Enable
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modbus_configure(9600, 6, 8, TOTAL_REGS_SIZE, 0); //Modbus via MAX485
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runner.init();
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//runner.addTask(t1);
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//t1.enable();
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}
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void loop() {
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runner.execute();
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holdingRegs[R00_Dust_10] = PM10;
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holdingRegs[R01_Dust_25] = PM25;
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holdingRegs[R02_Dust_100] = PM100;
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holdingRegs[TOTAL_ERRORS] = modbus_update(holdingRegs);
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if (pms.read(data)) {
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/*Serial.print("PM 1.0 (ug/m3): ");
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Serial.println(data.PM_AE_UG_1_0);
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Serial.print("PM 2.5 (ug/m3): ");
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Serial.println(data.PM_AE_UG_2_5);
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Serial.print("PM 10.0 (ug/m3): ");
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Serial.println(data.PM_AE_UG_10_0);
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Serial.println();
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*/
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PM10 = (int)data.PM_AE_UG_1_0;
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PM25 = (int)data.PM_AE_UG_2_5;
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PM100 = (int)data.PM_AE_UG_10_0;
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}
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}
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void sensor_pms() {
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Serial.print("PM 1.0 (ug/m3): ");
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Serial.println(PM10);
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Serial.print("PM 2.5 (ug/m3): ");
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Serial.println(PM25);
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Serial.print("PM 10.0 (ug/m3): ");
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Serial.println(PM100);
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Serial.println();
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}
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@ -0,0 +1,47 @@
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#include <Arduino.h>
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#include "MHZ19.h" // include main library
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#include <SoftwareSerial.h> // Remove if using HardwareSerial
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#define RX_PIN 4 // Rx pin which the MHZ19 Tx pin is attached to
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#define TX_PIN 5 // Tx pin which the MHZ19 Rx pin is attached to
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#define BAUDRATE 9600 // Native to the sensor (do not change)
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MHZ19 myMHZ19; // Constructor for MH-Z19 class
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SoftwareSerial mySerial(RX_PIN, TX_PIN); // Constructor for Stream class *change for HardwareSerial, i.e. ESP32 ***
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//HardwareSerial mySerial(1); // ESP32 Example
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unsigned long getDataTimer = 0; // Variable to store timer interval
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void setup()
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{
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Serial.begin(57600); // For ESP32 baudarte is 115200 etc.
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mySerial.begin(BAUDRATE); // Begin Stream with MHZ19 baudrate
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//mySerial.begin(BAUDRATE, SERIAL_8N1, RX_PIN, TX_PIN); // ESP32 Example
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myMHZ19.begin(mySerial); // *Important, Pass your Stream reference
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myMHZ19.autoCalibration(); // Turn ABC ON. Disable with autoCalibration(false) (also default)
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}
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void loop()
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{
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if (millis() - getDataTimer >= 2000) // Check if interval has elapsed (non-blocking delay() equivilant)
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{
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int CO2; // Buffer for CO2
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CO2 = myMHZ19.getCO2(); // Request CO2 (as ppm)
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Serial.print("CO2 (ppm): ");
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Serial.println(CO2);
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float Temp; // Buffer for temperature
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Temp = myMHZ19.getTemperature(); // Request Temperature (as Celsius)
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Serial.print("Temperature (C): ");
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Serial.println(Temp);
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getDataTimer = millis(); // Update interval
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}
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}
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