esphome/esphome/components/dallas/dallas_component.h
2021-10-21 22:48:28 +02:00

76 lines
2.1 KiB
C++

#pragma once
#include "esphome/core/component.h"
#include "esphome/components/sensor/sensor.h"
#include "esp_one_wire.h"
namespace esphome {
namespace dallas {
class DallasTemperatureSensor;
class DallasComponent : public PollingComponent {
public:
void set_pin(InternalGPIOPin *pin) { pin_ = pin; }
void register_sensor(DallasTemperatureSensor *sensor);
void setup() override;
void dump_config() override;
float get_setup_priority() const override { return setup_priority::DATA; }
void update() override;
protected:
friend DallasTemperatureSensor;
InternalGPIOPin *pin_;
ESPOneWire *one_wire_;
std::vector<DallasTemperatureSensor *> sensors_;
std::vector<uint64_t> found_sensors_;
};
/// Internal class that helps us create multiple sensors for one Dallas hub.
class DallasTemperatureSensor : public sensor::Sensor {
public:
void set_parent(DallasComponent *parent) { parent_ = parent; }
/// Helper to get a pointer to the address as uint8_t.
uint8_t *get_address8();
/// Helper to create (and cache) the name for this sensor. For example "0xfe0000031f1eaf29".
const std::string &get_address_name();
/// Set the 64-bit unsigned address for this sensor.
void set_address(uint64_t address);
/// Get the index of this sensor. (0 if using address.)
optional<uint8_t> get_index() const;
/// Set the index of this sensor. If using index, address will be set after setup.
void set_index(uint8_t index);
/// Get the set resolution for this sensor.
uint8_t get_resolution() const;
/// Set the resolution for this sensor.
void set_resolution(uint8_t resolution);
/// Get the number of milliseconds we have to wait for the conversion phase.
uint16_t millis_to_wait_for_conversion() const;
bool setup_sensor();
bool read_scratch_pad();
bool check_scratch_pad();
float get_temp_c();
std::string unique_id() override;
protected:
DallasComponent *parent_;
uint64_t address_;
optional<uint8_t> index_;
uint8_t resolution_;
std::string address_name_;
uint8_t scratch_pad_[9] = {
0,
};
};
} // namespace dallas
} // namespace esphome