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Add support for min time on/off

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tetele 2024-10-22 20:37:43 +00:00 committed by Tudor Sandu
parent 03ae6b2c1b
commit bd2638eb6a
3 changed files with 130 additions and 34 deletions
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104
esphome/components/slow_pwm/output.py
View file

@ -1,14 +1,13 @@
from esphome import pins, core
from esphome import automation, core, pins
import esphome.codegen as cg
from esphome.components import output
import esphome.config_validation as cv
import esphome.codegen as cg
from esphome import automation
from esphome.const import (
CONF_ID,
CONF_PIN,
CONF_PERIOD,
CONF_TURN_ON_ACTION,
CONF_PIN,
CONF_TURN_OFF_ACTION,
CONF_TURN_ON_ACTION,
)
slow_pwm_ns = cg.esphome_ns.namespace("slow_pwm")
@ -16,31 +15,71 @@ SlowPWMOutput = slow_pwm_ns.class_("SlowPWMOutput", output.FloatOutput, cg.Compo
CONF_STATE_CHANGE_ACTION = "state_change_action"
CONF_RESTART_CYCLE_ON_STATE_CHANGE = "restart_cycle_on_state_change"
CONF_MIN_TIME_ON = "min_time_on"
CONF_MIN_TIME_OFF = "min_time_off"
CONF_MAX_PERIOD = "max_period"
CONFIG_SCHEMA = output.FLOAT_OUTPUT_SCHEMA.extend(
{
cv.Required(CONF_ID): cv.declare_id(SlowPWMOutput),
cv.Optional(CONF_PIN): pins.gpio_output_pin_schema,
cv.Inclusive(
CONF_TURN_ON_ACTION,
"on_off",
f"{CONF_TURN_ON_ACTION} and {CONF_TURN_OFF_ACTION} must both be defined",
): automation.validate_automation(single=True),
cv.Inclusive(
CONF_TURN_OFF_ACTION,
"on_off",
f"{CONF_TURN_ON_ACTION} and {CONF_TURN_OFF_ACTION} must both be defined",
): automation.validate_automation(single=True),
cv.Optional(CONF_STATE_CHANGE_ACTION): automation.validate_automation(
single=True
),
cv.Required(CONF_PERIOD): cv.All(
cv.positive_time_period_milliseconds,
cv.Range(min=core.TimePeriod(milliseconds=100)),
),
cv.Optional(CONF_RESTART_CYCLE_ON_STATE_CHANGE, default=False): cv.boolean,
}
).extend(cv.COMPONENT_SCHEMA)
def has_time_to_turn_on_off(config):
"""Validates that the period is at least as great as min_time_on+min_time_off."""
min_time_on = config[CONF_MIN_TIME_ON].total_milliseconds
min_time_off = config[CONF_MIN_TIME_OFF].total_milliseconds
on_off_time = core.TimePeriod(milliseconds=min_time_on + min_time_off)
period = config[CONF_PERIOD]
max_period = config.get(CONF_MAX_PERIOD)
if period < on_off_time:
raise cv.Invalid(
"The cycle period must be large enough to allow at least one turn on and one turn off"
)
if CONF_MAX_PERIOD in config and max_period:
if max_period < on_off_time:
raise cv.Invalid(
"The max cycle period must be large enough to allow at least one turn on and one turn off"
)
if max_period < period:
raise cv.Invalid("The max period must be larger than the default period")
return config
CONFIG_SCHEMA = cv.All(
output.FLOAT_OUTPUT_SCHEMA.extend(
{
cv.Required(CONF_ID): cv.declare_id(SlowPWMOutput),
cv.Optional(CONF_PIN): pins.gpio_output_pin_schema,
cv.Inclusive(
CONF_TURN_ON_ACTION,
"on_off",
f"{CONF_TURN_ON_ACTION} and {CONF_TURN_OFF_ACTION} must both be defined",
): automation.validate_automation(single=True),
cv.Inclusive(
CONF_TURN_OFF_ACTION,
"on_off",
f"{CONF_TURN_ON_ACTION} and {CONF_TURN_OFF_ACTION} must both be defined",
): automation.validate_automation(single=True),
cv.Optional(CONF_STATE_CHANGE_ACTION): automation.validate_automation(
single=True
),
cv.Required(CONF_PERIOD): cv.All(
cv.positive_time_period_milliseconds,
cv.Range(min=core.TimePeriod(milliseconds=100)),
),
cv.Optional(CONF_RESTART_CYCLE_ON_STATE_CHANGE, default=False): cv.boolean,
cv.Optional(
CONF_MIN_TIME_ON, default="0ms"
): cv.positive_time_period_milliseconds,
cv.Optional(
CONF_MIN_TIME_OFF, default="0ms"
): cv.positive_time_period_milliseconds,
cv.Optional(CONF_MAX_PERIOD): cv.positive_time_period_milliseconds,
}
).extend(cv.COMPONENT_SCHEMA),
has_time_to_turn_on_off,
)
async def to_code(config):
@ -70,3 +109,10 @@ async def to_code(config):
config[CONF_RESTART_CYCLE_ON_STATE_CHANGE]
)
)
cg.add(var.set_min_time_on(config[CONF_MIN_TIME_ON]))
cg.add(var.set_min_time_off(config[CONF_MIN_TIME_OFF]))
if CONF_MAX_PERIOD not in config:
config[CONF_MAX_PERIOD] = 0
cg.add(var.set_max_period(config[CONF_MAX_PERIOD]))

47
esphome/components/slow_pwm/slow_pwm_output.cpp
View file

@ -40,11 +40,47 @@ void SlowPWMOutput::set_output_state_(bool new_state) {
void SlowPWMOutput::loop() {
uint32_t now = millis();
float scaled_state = this->state_ * this->period_;
float scaled_state = this->state_ * this->current_period_;
if (now - this->period_start_time_ >= this->period_) {
ESP_LOGVV(TAG, "End of period. State: %f, Scaled state: %f", this->state_, scaled_state);
this->period_start_time_ += this->period_;
if (this->state_ > 0 && (!this->max_period_ || this->current_period_ < this->max_period_) &&
(scaled_state - (float) this->min_time_on_) < -1.0) { // allow 1ms of floating point error
this->current_period_ = (unsigned int) ((float) this->min_time_on_ / this->state_);
ESP_LOGVV(TAG, "Current cycle extended to %d ms to prevent on time of just %.0f ms", this->current_period_,
scaled_state);
scaled_state = (float) this->min_time_on_;
}
if (this->state_ < 1.0 && (!this->max_period_ || this->current_period_ < this->max_period_) &&
((float) this->current_period_ - scaled_state - (float) this->min_time_off_) <
-1.0) { // allow 1ms of floating point error
float required_time_off = (float) this->current_period_ - scaled_state;
this->current_period_ = (unsigned int) ((float) this->min_time_off_ / (1.0 - this->state_));
ESP_LOGVV(TAG, "Current cycle extended to %d ms to prevent off time of just %.0f ms", this->current_period_,
required_time_off);
scaled_state = (float) (this->current_period_ - this->min_time_off_);
}
if (this->max_period_ && this->current_period_ > this->max_period_) {
this->current_period_ = this->max_period_;
ESP_LOGVV(TAG, "Current cycle reduced to %d ms to obey max period", this->current_period_);
}
if (this->state_ == 0)
scaled_state = 0;
else if (this->state_ == 1)
scaled_state = (float) this->current_period_;
else {
scaled_state = std::min(std::max((float) this->min_time_on_, this->state_ * this->current_period_),
(float) this->current_period_ - this->min_time_off_);
}
if (now - this->period_start_time_ >= this->current_period_) {
ESP_LOGVV(TAG, "End of period (%d ms). State: %f, Scaled state: %f", this->current_period_, this->state_,
scaled_state);
this->period_start_time_ += this->current_period_;
this->current_period_ = this->period_;
}
this->set_output_state_(scaled_state > now - this->period_start_time_);
@ -64,6 +100,9 @@ void SlowPWMOutput::dump_config() {
}
ESP_LOGCONFIG(TAG, " Period: %d ms", this->period_);
ESP_LOGCONFIG(TAG, " Restart cycle on state change: %s", YESNO(this->restart_cycle_on_state_change_));
ESP_LOGCONFIG(TAG, " Minimum time on: %d ms", this->min_time_on_);
ESP_LOGCONFIG(TAG, " Minimum time off: %d ms", this->min_time_off_);
ESP_LOGCONFIG(TAG, " Maximum period length: %d ms", this->max_period_);
LOG_FLOAT_OUTPUT(this);
}

13
esphome/components/slow_pwm/slow_pwm_output.h
View file

@ -10,10 +10,16 @@ namespace slow_pwm {
class SlowPWMOutput : public output::FloatOutput, public Component {
public:
void set_pin(GPIOPin *pin) { pin_ = pin; };
void set_period(unsigned int period) { period_ = period; };
void set_period(unsigned int period) {
period_ = period;
current_period_ = period;
};
void set_restart_cycle_on_state_change(bool restart_cycle_on_state_change) {
restart_cycle_on_state_change_ = restart_cycle_on_state_change;
}
void set_min_time_on(unsigned int min_time_on) { min_time_on_ = min_time_on; }
void set_min_time_off(unsigned int min_time_off) { min_time_off_ = min_time_off; }
void set_max_period(unsigned int max_period) { max_period_ = max_period; }
void restart_cycle() { this->period_start_time_ = millis(); }
/// Initialize pin
@ -55,6 +61,11 @@ class SlowPWMOutput : public output::FloatOutput, public Component {
unsigned int period_start_time_{0};
unsigned int period_;
bool restart_cycle_on_state_change_;
unsigned int min_time_on_;
unsigned int min_time_off_;
unsigned int max_period_;
unsigned int current_period_;
};
} // namespace slow_pwm