esphomeyaml mh-z19

main.cpp

// Auto generated code by esphomeyaml
#include "esphomelib/application.h"

#include <MHZ19_uart.h>

using namespace esphomelib;

class MHZ19Sensor : public sensor::PollingSensorComponent {
 protected:
  GPIOPin *pin_rx_;
  GPIOPin *pin_tx_;
  MHZ19_uart mhz19;
  
 public:
  MHZ19Sensor(const std::string &name, uint32_t update_interval, GPIOPin *pin_rx, GPIOPin *pin_tx)
    : sensor::PollingSensorComponent(name, update_interval), pin_rx_(pin_rx), pin_tx_(pin_tx) {}

  void setup() override {
    this->pin_rx_->setup();
    this->pin_rx_->digital_write(false);
    
    this->pin_tx_->setup();
    this->pin_tx_->digital_write(true);
  
    mhz19.begin(this->pin_rx_->get_pin(), this->pin_tx_->get_pin());
    mhz19.setAutoCalibration(false);
  }
  
  void update() override {
    int co2ppm = mhz19.getPPM();
    push_new_value(co2ppm);
  }
  
  std::string icon() override { return "mdi:cloud"; }
  std::string unit_of_measurement() override { return "ppm"; }
  int8_t accuracy_decimals() override { return 0; }
};

// should live in Application.h when merged into core
struct MakeMHZ19Sensor {
  MHZ19Sensor *mhz19;
  sensor::MQTTSensorComponent *mqtt;
};

// should live in Application.cpp  when merged into core
MakeMHZ19Sensor make_mhz19_sensor(const std::string &name,
                                  const GPIOInputPin &rx,
                                  const GPIOOutputPin &tx,
                                  uint32_t update_interval) {
  auto *sensor = App.register_component(
    new MHZ19Sensor(name, update_interval, rx.copy(), tx.copy())
  );

  return MakeMHZ19Sensor {
    .mhz19 = sensor,
    .mqtt = App.register_sensor(sensor),
  };
}


void setup() {
  // ===== DO NOT EDIT ANYTHING BELOW THIS LINE =====
  // ========== AUTO GENERATED CODE BEGIN ===========
    // ...
  // =========== AUTO GENERATED CODE END ============
  // ========= YOU CAN EDIT AFTER THIS LINE =========
  
  auto application_makemhz19sensor = make_mhz19_sensor("CO2", D1, D2, 15000);

  App.setup();
}

void loop() {
  App.loop();
  delay(16);
}

platformio.ini

[common]
lib_deps = MHZ19_uart@0.3
build_flags =
upload_flags =

; ...