MH-Z-CO2-Sensors/MH-Z19B.ino

#include <ESP8266WiFi.h>
#include <SoftwareSerial.h>
#include "MHZ.h"

#define CO2_IN D2

#define MH_Z19_RX D7
#define MH_Z19_TX D6

MHZ co2(MH_Z19_RX, MH_Z19_TX, CO2_IN, MHZ19B);

void setup() {
  Serial.begin(9600);
  pinMode(CO2_IN, INPUT);
  delay(100);
  Serial.println("MHZ 19B");

  co2.setDebug(true);
}

void loop() {
  // Serial.print("\n----- Time from start: ");
  // Serial.print(millis() / 1000);
  // Serial.println(" s");

  int ppm_uart = co2.readCO2UART();
  if (ppm_uart > 0) {
    Serial.print("PPMuart: ");
    Serial.print(ppm_uart);
  }

  // int ppm_pwm = co2.readCO2PWM();
  // Serial.print(", PPMpwm: ");
  // Serial.print(ppm_pwm);

  int temperature = co2.getLastTemperature();
  if (temperature > 0) {
    Serial.print(", Temperature: ");
    Serial.println(temperature);
  }

  // Serial.println("\n------------------------------");
  delay(1000);
}