feat(climate_ir): add old ballu protocol

esphome/components/ballu_old/ballu_old.cpp

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+#include "ballu_old.h"
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace ballu_old {
+
+static const char *const TAG = "ballu_old.climate";
+
+const uint16_t BALLU_HEADER_MARK = 3000;
+const uint16_t BALLU_HEADER_SPACE = 1500;
+const uint16_t BALLU_BIT_MARK = 500;
+const uint16_t BALLU_ONE_SPACE = 1000;
+const uint16_t BALLU_ZERO_SPACE = 350;
+
+const uint32_t BALLU_CARRIER_FREQUENCY = 38000;
+
+const uint8_t BALLU_STATE_LENGTH = 14;
+
+const uint8_t BALLU_AUTO = 0x08;
+const uint8_t BALLU_COOL = 0x03;
+const uint8_t BALLU_DRY = 0x02;
+const uint8_t BALLU_HEAT = 0x01;
+const uint8_t BALLU_FAN = 0x07;
+
+const uint8_t BALLU_FAN_AUTO = 0x00;
+const uint8_t BALLU_FAN_HIGH = 0x05;
+const uint8_t BALLU_FAN_MED = 0x03;
+const uint8_t BALLU_FAN_LOW = 0x02;
+
+const uint8_t BALLU_POWER = 0x04;
+const uint8_t BALLU_SWING = 0x38;
+
+void BalluOldClimate::transmit_state() {
+  uint8_t remote_state[BALLU_STATE_LENGTH] = {0};
+
+  auto temp = (uint8_t) roundf(std::clamp(this->target_temperature, YKR_K_002E_TEMP_MIN, YKR_K_002E_TEMP_MAX));
+  auto swing_mode = this->swing_mode != climate::CLIMATE_SWING_OFF;
+
+  remote_state[0] = 0x23;
+  remote_state[1] = 0xCB;
+  remote_state[2] = 0x26;
+  remote_state[3] = 0x01;
+  remote_state[5] = (this->mode == climate::CLIMATE_MODE_OFF) ? 0 : BALLU_POWER | (0x01 << 5);
+  remote_state[7] = 0x1F - temp;
+  remote_state[8] = (this->swing_mode == climate::CLIMATE_SWING_OFF) ? 0x00 : BALLU_SWING;
+
+  // Fan speed
+  switch (this->fan_mode.value()) {
+    case climate::CLIMATE_FAN_HIGH:
+      remote_state[8] |= BALLU_FAN_HIGH;
+      break;
+    case climate::CLIMATE_FAN_MEDIUM:
+      remote_state[8] |= BALLU_FAN_MED;
+      break;
+    case climate::CLIMATE_FAN_LOW:
+      remote_state[8] |= BALLU_FAN_LOW;
+      break;
+    case climate::CLIMATE_FAN_AUTO:
+      remote_state[8] |= BALLU_FAN_AUTO;
+      break;
+    default:
+      break;
+  }
+
+  // Mode
+  switch (this->mode) {
+    case climate::CLIMATE_MODE_AUTO:
+      remote_state[6] |= BALLU_AUTO;
+      break;
+    case climate::CLIMATE_MODE_HEAT:
+      remote_state[6] |= BALLU_HEAT;
+      break;
+    case climate::CLIMATE_MODE_COOL:
+      remote_state[6] |= BALLU_COOL;
+      break;
+    case climate::CLIMATE_MODE_DRY:
+      remote_state[6] |= BALLU_DRY;
+      break;
+    case climate::CLIMATE_MODE_FAN_ONLY:
+      remote_state[6] |= BALLU_FAN;
+      break;
+    case climate::CLIMATE_MODE_OFF:
+      remote_state[6] |= BALLU_AUTO;
+    default:
+      break;
+  }
+
+  // Checksum
+  for (uint8_t i = 0; i < BALLU_STATE_LENGTH - 1; i++)
+    remote_state[13] += remote_state[i];
+
+  ESP_LOGV(TAG, "Sending: %02X %02X %02X %02X   %02X %02X %02X %02X   %02X %02X %02X %02X   %02X", remote_state[0],
+           remote_state[1], remote_state[2], remote_state[3], remote_state[4], remote_state[5], remote_state[6],
+           remote_state[7], remote_state[8], remote_state[9], remote_state[10], remote_state[11], remote_state[12]);
+
+  // Send code
+  auto transmit = this->transmitter_->transmit();
+  auto *data = transmit.get_data();
+
+  data->set_carrier_frequency(38000);
+
+  // Header
+  data->mark(BALLU_HEADER_MARK);
+  data->space(BALLU_HEADER_SPACE);
+  // Data
+  for (uint8_t i : remote_state) {
+    for (uint8_t j = 0; j < 8; j++) {
+      data->mark(BALLU_BIT_MARK);
+      bool bit = i & (1 << j);
+      data->space(bit ? BALLU_ONE_SPACE : BALLU_ZERO_SPACE);
+    }
+  }
+  // Footer
+  data->mark(BALLU_BIT_MARK);
+
+  transmit.perform();
+}
+
+}  // namespace ballu_old
+}  // namespace esphome

esphome/components/ballu_old/ballu_old.h

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+#pragma once
+
+#include "esphome/components/climate_ir/climate_ir.h"
+
+namespace esphome {
+namespace ballu_old {
+
+// Support for old Ballu air conditioners
+// Tested: BSC-09H
+
+// Temperature
+const float YKR_K_002E_TEMP_MIN = 16.0;
+const float YKR_K_002E_TEMP_MAX = 31.0;
+
+class BalluOldClimate : public climate_ir::ClimateIR {
+ public:
+  BalluOldClimate()
+      : climate_ir::ClimateIR(YKR_K_002E_TEMP_MIN, YKR_K_002E_TEMP_MAX, 1.0f, true, true,
+                              {climate::CLIMATE_FAN_AUTO, climate::CLIMATE_FAN_LOW, climate::CLIMATE_FAN_MEDIUM,
+                               climate::CLIMATE_FAN_HIGH},
+                              {climate::CLIMATE_SWING_OFF, climate::CLIMATE_SWING_VERTICAL,
+                               climate::CLIMATE_SWING_HORIZONTAL, climate::CLIMATE_SWING_BOTH}) {}
+
+ protected:
+  /// Transmit via IR the state of this climate controller.
+  void transmit_state() override;
+};
+
+}  // namespace ballu_old
+}  // namespace esphome

esphome/components/ballu_old/climate.py

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+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import climate_ir
+from esphome.const import CONF_ID
+
+AUTO_LOAD = ["climate_ir"]
+CODEOWNERS = ["@bazuchan"]
+
+ballu_old_ns = cg.esphome_ns.namespace("ballu_old")
+BalluOldClimate = ballu_old_ns.class_("BalluOldClimate", climate_ir.ClimateIR)
+
+CONFIG_SCHEMA = climate_ir.CLIMATE_IR_WITH_RECEIVER_SCHEMA.extend(
+    {
+        cv.GenerateID(): cv.declare_id(BalluOldClimate),
+    }
+)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await climate_ir.register_climate_ir(var, config)

tests/components/ballu_old/test.esp32-ard.yaml

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+remote_transmitter:
+  pin: GPIO2
+  carrier_duty_percent: 50%
+
+climate:
+  - platform: ballu_old
+    name: Living room AC

tests/components/ballu_old/test.esp8266-ard.yaml

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+remote_transmitter:
+  pin: GPIO2
+  carrier_duty_percent: 50%
+
+climate:
+  - platform: ballu_old
+    name: Living room AC