hbridge_fan.h

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#pragma once
 
#include "esphome/core/automation.h"
#include "esphome/components/output/binary_output.h"
#include "esphome/components/output/float_output.h"
#include "esphome/components/fan/fan.h"
 
namespace esphome::hbridge {
 
enum DecayMode {
  DECAY_MODE_SLOW = 0,
  DECAY_MODE_FAST = 1,
};
 
class HBridgeFan : public Component, public fan::Fan {
 public:
  HBridgeFan(int speed_count, DecayMode decay_mode) : speed_count_(speed_count), decay_mode_(decay_mode) {}
 
  void set_pin_a(output::FloatOutput *pin_a) { pin_a_ = pin_a; }
  void set_pin_b(output::FloatOutput *pin_b) { pin_b_ = pin_b; }
  void set_enable_pin(output::FloatOutput *enable) { enable_ = enable; }
  void set_preset_modes(std::initializer_list<const char *> presets) { this->set_supported_preset_modes(presets); }
 
  void setup() override;
  void dump_config() override;
  fan::FanTraits get_traits() override {
    this->wire_preset_modes_(this->traits_);
    return this->traits_;
  }
 
  fan::FanCall brake();
 
 protected:
  output::FloatOutput *pin_a_;
  output::FloatOutput *pin_b_;
  output::FloatOutput *enable_{nullptr};
  output::BinaryOutput *oscillating_{nullptr};
  int speed_count_{};
  DecayMode decay_mode_{DECAY_MODE_SLOW};
  fan::FanTraits traits_;
 
  void control(const fan::FanCall &call) override;
  void write_state_();
 
  void set_hbridge_levels_(float a_level, float b_level);
  void set_hbridge_levels_(float a_level, float b_level, float enable);
};
 
template<typename... Ts> class BrakeAction : public Action<Ts...> {
 public:
  explicit BrakeAction(HBridgeFan *parent) : parent_(parent) {}
 
  void play(const Ts &...x) override { this->parent_->brake(); }
 
  HBridgeFan *parent_;
};
 
}  // namespace esphome::hbridge