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74 lines
1.8 KiB
C++
74 lines
1.8 KiB
C++
#pragma once
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#include "esphome/core/component.h"
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#include "esphome/core/esphal.h"
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#include "esphome/components/sensor/sensor.h"
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#ifdef ARDUINO_ARCH_ESP32
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#include <driver/pcnt.h>
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#endif
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namespace esphome {
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namespace pulse_counter {
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enum PulseCounterCountMode {
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PULSE_COUNTER_DISABLE = 0,
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PULSE_COUNTER_INCREMENT,
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PULSE_COUNTER_DECREMENT,
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};
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#ifdef ARDUINO_ARCH_ESP32
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using pulse_counter_t = int16_t;
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#endif
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#ifdef ARDUINO_ARCH_ESP8266
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using pulse_counter_t = int32_t;
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#endif
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struct PulseCounterStorage {
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bool pulse_counter_setup(GPIOPin *pin);
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pulse_counter_t read_raw_value();
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static void gpio_intr(PulseCounterStorage *arg);
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#ifdef ARDUINO_ARCH_ESP8266
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volatile pulse_counter_t counter{0};
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volatile uint32_t last_pulse{0};
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#endif
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GPIOPin *pin;
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#ifdef ARDUINO_ARCH_ESP32
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pcnt_unit_t pcnt_unit;
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#endif
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#ifdef ARDUINO_ARCH_ESP8266
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ISRInternalGPIOPin *isr_pin;
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#endif
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PulseCounterCountMode rising_edge_mode{PULSE_COUNTER_INCREMENT};
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PulseCounterCountMode falling_edge_mode{PULSE_COUNTER_DISABLE};
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uint32_t filter_us{0};
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pulse_counter_t last_value{0};
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};
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class PulseCounterSensor : public sensor::Sensor, public PollingComponent {
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public:
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void set_pin(GPIOPin *pin) { pin_ = pin; }
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void set_rising_edge_mode(PulseCounterCountMode mode) { storage_.rising_edge_mode = mode; }
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void set_falling_edge_mode(PulseCounterCountMode mode) { storage_.falling_edge_mode = mode; }
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void set_filter_us(uint32_t filter) { storage_.filter_us = filter; }
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/// Unit of measurement is "pulses/min".
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void setup() override;
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void update() override;
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float get_setup_priority() const override { return setup_priority::DATA; }
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void dump_config() override;
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protected:
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GPIOPin *pin_;
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PulseCounterStorage storage_;
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};
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#ifdef ARDUINO_ARCH_ESP32
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extern pcnt_unit_t next_pcnt_unit;
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#endif
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} // namespace pulse_counter
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} // namespace esphome
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