mirror of https://github.com/esphome/esphome.git
90 lines
2.2 KiB
C++
90 lines
2.2 KiB
C++
#include "esphome/components/adc/adc_sensor.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace adc {
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static const char *TAG = "adc";
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ADCSensor::ADCSensor(const std::string &name, uint8_t pin, uint32_t update_interval)
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: PollingSensorComponent(name, update_interval), pin_(pin) {}
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#ifdef ARDUINO_ARCH_ESP32
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void ADCSensor::set_attenuation(adc_attenuation_t attenuation) { this->attenuation_ = attenuation; }
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#endif
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void ADCSensor::setup() {
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ESP_LOGCONFIG(TAG, "Setting up ADC '%s'...", this->get_name().c_str());
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GPIOPin(this->pin_, INPUT).setup();
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#ifdef ARDUINO_ARCH_ESP32
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analogSetPinAttenuation(this->pin_, this->attenuation_);
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#endif
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}
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void ADCSensor::dump_config() {
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LOG_SENSOR("", "ADC Sensor", this);
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#ifdef ARDUINO_ARCH_ESP8266
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#ifdef USE_ADC_SENSOR_VCC
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ESP_LOGCONFIG(TAG, " Pin: VCC");
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#else
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ESP_LOGCONFIG(TAG, " Pin: %u", this->pin_);
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#endif
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#endif
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#ifdef ARDUINO_ARCH_ESP32
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ESP_LOGCONFIG(TAG, " Pin: %u", this->pin_);
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switch (this->attenuation_) {
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case ADC_0db:
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ESP_LOGCONFIG(TAG, " Attenuation: 0db (max 1.1V)");
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break;
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case ADC_2_5db:
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ESP_LOGCONFIG(TAG, " Attenuation: 2.5db (max 1.5V)");
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break;
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case ADC_6db:
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ESP_LOGCONFIG(TAG, " Attenuation: 6db (max 2.2V)");
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break;
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case ADC_11db:
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ESP_LOGCONFIG(TAG, " Attenuation: 11db (max 3.9V)");
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break;
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}
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#endif
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LOG_UPDATE_INTERVAL(this);
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}
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float ADCSensor::get_setup_priority() const { return setup_priority::DATA; }
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void ADCSensor::update() {
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#ifdef ARDUINO_ARCH_ESP32
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float value_v = analogRead(this->pin_) / 4095.0f;
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switch (this->attenuation_) {
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case ADC_0db:
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value_v *= 1.1;
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break;
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case ADC_2_5db:
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value_v *= 1.5;
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break;
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case ADC_6db:
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value_v *= 2.2;
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break;
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case ADC_11db:
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value_v *= 3.9;
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break;
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}
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#endif
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#ifdef ARDUINO_ARCH_ESP8266
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#ifdef USE_ADC_SENSOR_VCC
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float value_v = ESP.getVcc() / 1024.0f;
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#else
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float value_v = analogRead(this->pin_) / 1024.0f;
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#endif
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#endif
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ESP_LOGD(TAG, "'%s': Got voltage=%.2fV", this->get_name().c_str(), value_v);
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this->publish_state(value_v);
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}
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#ifdef ARDUINO_ARCH_ESP8266
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std::string ADCSensor::unique_id() { return get_mac_address() + "-adc"; }
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#endif
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} // namespace adc
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} // namespace esphome
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