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92 lines
2.6 KiB
C++
92 lines
2.6 KiB
C++
#pragma once
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#include "esphome/components/sensor/sensor.h"
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#include "esphome/components/voltage_sampler/voltage_sampler.h"
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#include "esphome/core/component.h"
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#include "esphome/core/defines.h"
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#include "esphome/core/hal.h"
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#ifdef USE_ESP32
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#include <esp_adc_cal.h>
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#include "driver/adc.h"
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#endif
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namespace esphome {
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namespace adc {
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#ifdef USE_ESP32
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// clang-format off
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#if (ESP_IDF_VERSION_MAJOR == 4 && ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 4, 7)) || \
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(ESP_IDF_VERSION_MAJOR == 5 && \
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((ESP_IDF_VERSION_MINOR == 0 && ESP_IDF_VERSION_PATCH >= 5) || \
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(ESP_IDF_VERSION_MINOR == 1 && ESP_IDF_VERSION_PATCH >= 3) || \
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(ESP_IDF_VERSION_MINOR >= 2)) \
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)
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// clang-format on
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static const adc_atten_t ADC_ATTEN_DB_12_COMPAT = ADC_ATTEN_DB_12;
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#else
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static const adc_atten_t ADC_ATTEN_DB_12_COMPAT = ADC_ATTEN_DB_11;
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#endif
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#endif // USE_ESP32
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class ADCSensor : public sensor::Sensor, public PollingComponent, public voltage_sampler::VoltageSampler {
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public:
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#ifdef USE_ESP32
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/// Set the attenuation for this pin. Only available on the ESP32.
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void set_attenuation(adc_atten_t attenuation) { this->attenuation_ = attenuation; }
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void set_channel1(adc1_channel_t channel) {
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this->channel1_ = channel;
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this->channel2_ = ADC2_CHANNEL_MAX;
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}
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void set_channel2(adc2_channel_t channel) {
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this->channel2_ = channel;
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this->channel1_ = ADC1_CHANNEL_MAX;
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}
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void set_autorange(bool autorange) { this->autorange_ = autorange; }
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#endif
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/// Update ADC values
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void update() override;
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/// Setup ADC
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void setup() override;
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void dump_config() override;
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/// `HARDWARE_LATE` setup priority
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float get_setup_priority() const override;
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void set_pin(InternalGPIOPin *pin) { this->pin_ = pin; }
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void set_output_raw(bool output_raw) { this->output_raw_ = output_raw; }
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void set_sample_count(uint8_t sample_count);
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float sample() override;
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#ifdef USE_ESP8266
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std::string unique_id() override;
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#endif
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#ifdef USE_RP2040
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void set_is_temperature() { this->is_temperature_ = true; }
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#endif
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protected:
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InternalGPIOPin *pin_;
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bool output_raw_{false};
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uint8_t sample_count_{1};
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#ifdef USE_RP2040
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bool is_temperature_{false};
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#endif
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#ifdef USE_ESP32
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adc_atten_t attenuation_{ADC_ATTEN_DB_0};
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adc1_channel_t channel1_{ADC1_CHANNEL_MAX};
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adc2_channel_t channel2_{ADC2_CHANNEL_MAX};
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bool autorange_{false};
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#if ESP_IDF_VERSION_MAJOR >= 5
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esp_adc_cal_characteristics_t cal_characteristics_[SOC_ADC_ATTEN_NUM] = {};
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#else
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esp_adc_cal_characteristics_t cal_characteristics_[ADC_ATTEN_MAX] = {};
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#endif
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#endif
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};
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} // namespace adc
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} // namespace esphome
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