Files
EMS-ESP32/src/sensors.h
2020-05-18 21:00:38 +02:00

111 lines
2.8 KiB
C++

/*
* EMS-ESP - https://github.com/proddy/EMS-ESP
* Copyright 2019 Paul Derbyshire
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
// code written by nomis - https://github.com/nomis
#ifndef EMSESP_SENSORS_H
#define EMSESP_SENSORS_H
#include <string>
#include <vector>
#include "helpers.h"
#include "settings.h"
#include "mqtt.h"
#include "console.h"
#include <uuid/log.h>
#ifndef EMSESP_STANDALONE
#include <OneWire.h>
#endif
namespace emsesp {
class Sensors {
public:
class Device {
public:
Device(const uint8_t addr[]);
~Device() = default;
uint64_t id() const;
std::string to_string() const;
float temperature_c_ = NAN;
private:
const uint64_t id_;
};
Sensors() = default;
~Sensors() = default;
void start();
void loop();
void publish_values();
const std::vector<Device> devices() const;
private:
static constexpr uint8_t SENSOR_GPIO = 14; // D5
enum class State { IDLE, READING, SCANNING };
static constexpr size_t ADDR_LEN = 8;
static constexpr size_t SCRATCHPAD_LEN = 9;
static constexpr size_t SCRATCHPAD_TEMP_MSB = 1;
static constexpr size_t SCRATCHPAD_TEMP_LSB = 0;
static constexpr size_t SCRATCHPAD_CONFIG = 4;
// dallas chips
static constexpr uint8_t TYPE_DS18B20 = 0x28;
static constexpr uint8_t TYPE_DS18S20 = 0x10;
static constexpr uint8_t TYPE_DS1822 = 0x22;
static constexpr uint8_t TYPE_DS1825 = 0x3B;
static constexpr uint32_t READ_INTERVAL_MS = 5000; // 5 seconds
static constexpr uint32_t READ_TIMEOUT_MS = 2000; // 2 seconds
static constexpr uint32_t SCAN_TIMEOUT_MS = 30000; // 30 seconds
static constexpr uint8_t CMD_CONVERT_TEMP = 0x44;
static constexpr uint8_t CMD_READ_SCRATCHPAD = 0xBE;
static uuid::log::Logger logger_;
#ifndef EMSESP_STANDALONE
OneWire bus_;
#endif
bool temperature_convert_complete();
float get_temperature_c(const uint8_t addr[]);
uint32_t last_activity_ = millis();
uint32_t last_publish_ = millis();
State state_ = State::IDLE;
std::vector<Device> found_;
std::vector<Device> devices_;
uint8_t mqtt_format_;
};
} // namespace emsesp
#endif