[mitsubishi_cn105] Add climate component for Mitsubishi A/C units with CN105 connector (Part 1) (#15315)

Co-authored-by: J. Nick Koston <nick+github@koston.org>

CODEOWNERS

@@ -331,6 +331,7 @@ esphome/components/mipi_dsi/* @clydebarrow
 esphome/components/mipi_rgb/* @clydebarrow
 esphome/components/mipi_spi/* @clydebarrow
 esphome/components/mitsubishi/* @RubyBailey
+esphome/components/mitsubishi_cn105/* @crnjan
 esphome/components/mixer/speaker/* @kahrendt
 esphome/components/mlx90393/* @functionpointer
 esphome/components/mlx90614/* @jesserockz

esphome/components/mitsubishi_cn105/climate.py

@@ -0,0 +1,41 @@
+import esphome.codegen as cg
+from esphome.components import climate, uart
+import esphome.config_validation as cv
+from esphome.const import CONF_UPDATE_INTERVAL
+from esphome.types import ConfigType
+
+DEPENDENCIES = ["uart"]
+AUTO_LOAD = ["climate"]
+CODEOWNERS = ["@crnjan"]
+
+mitsubishi_ns = cg.esphome_ns.namespace("mitsubishi_cn105")
+
+MitsubishiCN105Climate = mitsubishi_ns.class_(
+    "MitsubishiCN105Climate",
+    climate.Climate,
+    cg.Component,
+    uart.UARTDevice,
+)
+
+CONFIG_SCHEMA = (
+    climate.climate_schema(MitsubishiCN105Climate)
+    .extend(uart.UART_DEVICE_SCHEMA)
+    .extend({cv.Optional(CONF_UPDATE_INTERVAL, default="1s"): cv.update_interval})
+)
+
+FINAL_VALIDATE_SCHEMA = cv.All(
+    uart.final_validate_device_schema(
+        "mitsubishi_cn105",
+        require_rx=True,
+        require_tx=True,
+        data_bits=8,
+        parity="EVEN",
+        stop_bits=1,
+    )
+)
+
+
+async def to_code(config: ConfigType) -> None:
+    var = await climate.new_climate(config)
+    await cg.register_component(var, config)
+    await uart.register_uart_device(var, config)

esphome/components/mitsubishi_cn105/mitsubishi_cn105.cpp

@@ -0,0 +1,7 @@
+#include "mitsubishi_cn105.h"
+
+namespace esphome::mitsubishi_cn105 {
+
+static const char *const TAG = "mitsubishi_cn105.driver";
+
+}  // namespace esphome::mitsubishi_cn105

esphome/components/mitsubishi_cn105/mitsubishi_cn105.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include "esphome/components/uart/uart.h"
+
+namespace esphome::mitsubishi_cn105 {
+
+class MitsubishiCN105 {
+ public:
+  explicit MitsubishiCN105(uart::UARTDevice &device) : device_(device) {}
+
+  uint32_t get_update_interval() const { return this->update_interval_ms_; }
+  void set_update_interval(uint32_t interval_ms) { this->update_interval_ms_ = interval_ms; }
+
+ protected:
+  uart::UARTDevice &device_;
+  uint32_t update_interval_ms_{1000};
+};
+
+}  // namespace esphome::mitsubishi_cn105

esphome/components/mitsubishi_cn105/mitsubishi_cn105_climate.cpp

@@ -0,0 +1,28 @@
+#include "mitsubishi_cn105_climate.h"
+#include "esphome/core/log.h"
+
+namespace esphome::mitsubishi_cn105 {
+
+static const char *const TAG = "mitsubishi_cn105.climate";
+
+void MitsubishiCN105Climate::dump_config() {
+  LOG_CLIMATE("", "Mitsubishi CN105 Climate", this);
+  ESP_LOGCONFIG(TAG,
+                "  Update interval: %" PRIu32 " ms\n"
+                "  UART: baud_rate=%" PRIu32 " data_bits=%u parity=%s stop_bits=%u",
+                this->hp_.get_update_interval(), this->parent_->get_baud_rate(), this->parent_->get_data_bits(),
+                LOG_STR_ARG(parity_to_str(this->parent_->get_parity())), this->parent_->get_stop_bits());
+}
+
+void MitsubishiCN105Climate::setup() {}
+
+void MitsubishiCN105Climate::loop() {}
+
+climate::ClimateTraits MitsubishiCN105Climate::traits() {
+  climate::ClimateTraits traits;
+  return traits;
+}
+
+void MitsubishiCN105Climate::control(const climate::ClimateCall &call) {}
+
+}  // namespace esphome::mitsubishi_cn105

esphome/components/mitsubishi_cn105/mitsubishi_cn105_climate.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/climate/climate.h"
+#include "esphome/components/uart/uart.h"
+#include "mitsubishi_cn105.h"
+
+namespace esphome::mitsubishi_cn105 {
+
+class MitsubishiCN105Climate : public climate::Climate, public Component, public uart::UARTDevice {
+ public:
+  explicit MitsubishiCN105Climate() : hp_(*this) {}
+
+  void setup() override;
+  void loop() override;
+  void dump_config() override;
+
+  climate::ClimateTraits traits() override;
+  void control(const climate::ClimateCall &call) override;
+
+  void set_update_interval(uint32_t ms) { hp_.set_update_interval(ms); }
+
+ protected:
+  MitsubishiCN105 hp_;
+};
+
+}  // namespace esphome::mitsubishi_cn105

tests/components/mitsubishi_cn105/common.yaml

@@ -0,0 +1,4 @@
+climate:
+  - platform: mitsubishi_cn105
+    name: "AC Test"
+    uart_id: uart_bus

tests/components/mitsubishi_cn105/test.esp32-idf.yaml

@@ -0,0 +1,4 @@
+packages:
+  uart: !include ../../test_build_components/common/uart_9600_even/esp32-idf.yaml
+
+<<: !include common.yaml

tests/components/mitsubishi_cn105/test.esp8266-ard.yaml

@@ -0,0 +1,4 @@
+packages:
+  uart: !include ../../test_build_components/common/uart_9600_even/esp8266-ard.yaml
+
+<<: !include common.yaml

tests/components/mitsubishi_cn105/test.rp2040-ard.yaml

@@ -0,0 +1,4 @@
+packages:
+  uart: !include ../../test_build_components/common/uart_9600_even/rp2040-ard.yaml
+
+<<: !include common.yaml