mirror of
https://github.com/esphome/esphome.git
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ac0d921413
* Socket refactor and SSL * esp-idf temp * Fixes * Echo component and noise * Add noise API transport support * Updates * ESP-IDF * Complete * Fixes * Fixes * Versions update * New i2c APIs * Complete i2c refactor * SPI migration * Revert ESP Preferences migration, too complex for now * OTA support * Remove echo again * Remove ssl again * GPIOFlags updates * Rename esphal and ICACHE_RAM_ATTR * Make ESP32 arduino compilable again * Fix GPIO flags * Complete pin registry refactor and fixes * Fixes to make test1 compile * Remove sdkconfig file * Ignore sdkconfig file * Fixes in reviewing * Make test2 compile * Make test4 compile * Make test5 compile * Run clang-format * Fix lint errors * Use esp-idf APIs instead of btStart * Another round of fixes * Start implementing ESP8266 * Make test3 compile * Guard esp8266 code * Lint * Reformat * Fixes * Fixes v2 * more fixes * ESP-IDF tidy target * Convert ARDUINO_ARCH_ESPxx * Update WiFiSignalSensor * Update time ifdefs * OTA needs millis from hal * RestartSwitch needs delay from hal * ESP-IDF Uart * Fix OTA blank password * Allow setting sdkconfig * Fix idf partitions and allow setting sdkconfig from yaml * Re-add read/write compat APIs and fix esp8266 uart * Fix esp8266 store log strings in flash * Fix ESP32 arduino preferences not initialized * Update ifdefs * Change how sdkconfig change is detected * Add checks to ci-custom and fix them * Run clang-format * Add esp-idf clang-tidy target and fix errors * Fixes from clang-tidy idf round 2 * Fixes from compiling tests with esp-idf * Run clang-format * Switch test5.yaml to esp-idf * Implement ESP8266 Preferences * Lint * Re-do PIO package version selection a bit * Fix arduinoespressif32 package version * Fix unit tests * Lint * Lint fixes * Fix readv/writev not defined * Fix graphing component * Re-add all old options from core/config.py Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
63 lines
2.3 KiB
C++
63 lines
2.3 KiB
C++
#include "ultrasonic_sensor.h"
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#include "esphome/core/log.h"
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#include "esphome/core/hal.h"
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namespace esphome {
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namespace ultrasonic {
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static const char *const TAG = "ultrasonic.sensor";
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void UltrasonicSensorComponent::setup() {
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ESP_LOGCONFIG(TAG, "Setting up Ultrasonic Sensor...");
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this->trigger_pin_->setup();
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this->trigger_pin_->digital_write(false);
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this->echo_pin_->setup();
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// isr is faster to access
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echo_isr_ = echo_pin_->to_isr();
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}
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void UltrasonicSensorComponent::update() {
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this->trigger_pin_->digital_write(true);
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delayMicroseconds(this->pulse_time_us_);
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this->trigger_pin_->digital_write(false);
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const uint32_t start = micros();
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while (micros() - start < timeout_us_ && echo_isr_.digital_read())
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;
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while (micros() - start < timeout_us_ && !echo_isr_.digital_read())
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;
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const uint32_t pulse_start = micros();
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while (micros() - start < timeout_us_ && echo_isr_.digital_read())
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;
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const uint32_t pulse_end = micros();
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ESP_LOGV(TAG, "Echo took %uµs", pulse_end - pulse_start);
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if (pulse_end - start >= timeout_us_) {
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ESP_LOGD(TAG, "'%s' - Distance measurement timed out!", this->name_.c_str());
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this->publish_state(NAN);
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} else {
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float result = UltrasonicSensorComponent::us_to_m(pulse_end - pulse_start);
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ESP_LOGD(TAG, "'%s' - Got distance: %.2f m", this->name_.c_str(), result);
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this->publish_state(result);
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}
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}
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void UltrasonicSensorComponent::dump_config() {
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LOG_SENSOR("", "Ultrasonic Sensor", this);
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LOG_PIN(" Echo Pin: ", this->echo_pin_);
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LOG_PIN(" Trigger Pin: ", this->trigger_pin_);
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ESP_LOGCONFIG(TAG, " Pulse time: %u µs", this->pulse_time_us_);
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ESP_LOGCONFIG(TAG, " Timeout: %u µs", this->timeout_us_);
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LOG_UPDATE_INTERVAL(this);
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}
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float UltrasonicSensorComponent::us_to_m(uint32_t us) {
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const float speed_sound_m_per_s = 343.0f;
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const float time_s = us / 1e6f;
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const float total_dist = time_s * speed_sound_m_per_s;
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return total_dist / 2.0f;
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}
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float UltrasonicSensorComponent::get_setup_priority() const { return setup_priority::DATA; }
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void UltrasonicSensorComponent::set_pulse_time_us(uint32_t pulse_time_us) { this->pulse_time_us_ = pulse_time_us; }
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void UltrasonicSensorComponent::set_timeout_us(uint32_t timeout_us) { this->timeout_us_ = timeout_us; }
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} // namespace ultrasonic
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} // namespace esphome
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