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ec6cc105f4
Add the C++ `final` specifier to leaf, user-configurable component classes and automation action/trigger/condition primitives so that classes meant to be terminal cannot be subclassed by external components. Only classes never used as a base anywhere in the tree are marked. Part 19 of 21, split alphabetically by component (uart .. wl_134).
53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
#pragma once
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#include "esphome/core/component.h"
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#include "esphome/core/gpio.h"
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#include "esphome/components/sensor/sensor.h"
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#include <cinttypes>
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namespace esphome::ultrasonic {
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struct UltrasonicSensorStore {
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static void gpio_intr(UltrasonicSensorStore *arg);
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volatile uint32_t measurement_start_us{0};
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volatile uint32_t echo_start_us{0};
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volatile uint32_t echo_end_us{0};
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volatile bool echo_start{false};
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volatile bool echo_end{false};
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};
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class UltrasonicSensorComponent final : public sensor::Sensor, public PollingComponent {
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public:
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void set_trigger_pin(InternalGPIOPin *trigger_pin) { this->trigger_pin_ = trigger_pin; }
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void set_echo_pin(InternalGPIOPin *echo_pin) { this->echo_pin_ = echo_pin; }
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void setup() override;
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void loop() override;
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void dump_config() override;
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void update() override;
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/// Set the maximum time in µs to wait for the echo to return
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void set_timeout_us(uint32_t timeout_us) { this->timeout_us_ = timeout_us; }
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/// Set the time in µs the trigger pin should be enabled for in µs, defaults to 10µs (for HC-SR04)
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void set_pulse_time_us(uint32_t pulse_time_us) { this->pulse_time_us_ = pulse_time_us; }
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protected:
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/// Helper function to convert the specified echo duration in µs to meters.
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static float us_to_m(uint32_t us);
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void send_trigger_pulse_();
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InternalGPIOPin *trigger_pin_;
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ISRInternalGPIOPin trigger_pin_isr_;
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InternalGPIOPin *echo_pin_;
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UltrasonicSensorStore store_;
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uint32_t timeout_us_{};
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uint32_t pulse_time_us_{};
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uint32_t measurement_start_us_{0};
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bool measurement_pending_{false};
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};
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} // namespace esphome::ultrasonic
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