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Add ZH/LT-01 climate component with IR receiver option (esphome#4333)
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Co-authored-by: Chris Feenstra <[email protected]>
Co-authored-by: Jesse Hills <[email protected]>
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@cfeenstra1024 @jesserockz
3 people authored Oct 23, 2023
1 parent da9c2f2 commit b4765fb
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1 change: 1 addition & 0 deletions CODEOWNERS
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Expand Up @@ -345,4 +345,5 @@ esphome/components/xiaomi_mhoc401/* @vevsvevs
esphome/components/xiaomi_rtcgq02lm/* @jesserockz
esphome/components/xl9535/* @mreditor97
esphome/components/xpt2046/* @nielsnl68 @numo68
esphome/components/zhlt01/* @cfeenstra1024
esphome/components/zio_ultrasonic/* @kahrendt
Empty file added esphome/components/zhlt01/__init__.py
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19 changes: 19 additions & 0 deletions esphome/components/zhlt01/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 = ["@cfeenstra1024"]

zhlt01_ns = cg.esphome_ns.namespace("zhlt01")
ZHLT01Climate = zhlt01_ns.class_("ZHLT01Climate", climate_ir.ClimateIR)

CONFIG_SCHEMA = climate_ir.CLIMATE_IR_WITH_RECEIVER_SCHEMA.extend(
{cv.GenerateID(): cv.declare_id(ZHLT01Climate)}
)


async def to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
await climate_ir.register_climate_ir(var, config)
238 changes: 238 additions & 0 deletions esphome/components/zhlt01/zhlt01.cpp
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#include "zhlt01.h"
#include "esphome/core/log.h"

namespace esphome {
namespace zhlt01 {

static const char *const TAG = "zhlt01.climate";

void ZHLT01Climate::transmit_state() {
uint8_t ir_message[12] = {0};

// Byte 1 : Timer
ir_message[1] = 0x00; // Timer off

// Byte 3 : Turbo mode
if (this->preset.value() == climate::CLIMATE_PRESET_BOOST) {
ir_message[3] = AC1_FAN_TURBO;
}

// Byte 5 : Last pressed button
ir_message[5] = 0x00; // fixed as power button

// Byte 7 : Power | Swing | Fan
// -- Power
if (this->mode == climate::CLIMATE_MODE_OFF) {
ir_message[7] = AC1_POWER_OFF;
} else {
ir_message[7] = AC1_POWER_ON;
}

// -- Swing
switch (this->swing_mode) {
case climate::CLIMATE_SWING_OFF:
ir_message[7] |= AC1_HDIR_FIXED | AC1_VDIR_FIXED;
break;
case climate::CLIMATE_SWING_HORIZONTAL:
ir_message[7] |= AC1_HDIR_SWING | AC1_VDIR_FIXED;
break;
case climate::CLIMATE_SWING_VERTICAL:
ir_message[7] |= AC1_HDIR_FIXED | AC1_VDIR_SWING;
break;
case climate::CLIMATE_SWING_BOTH:
ir_message[7] |= AC1_HDIR_SWING | AC1_VDIR_SWING;
break;
default:
break;
}

// -- Fan
switch (this->preset.value()) {
case climate::CLIMATE_PRESET_BOOST:
ir_message[7] |= AC1_FAN3;
break;
case climate::CLIMATE_PRESET_SLEEP:
ir_message[7] |= AC1_FAN_SILENT;
break;
default:
switch (this->fan_mode.value()) {
case climate::CLIMATE_FAN_LOW:
ir_message[7] |= AC1_FAN1;
break;
case climate::CLIMATE_FAN_MEDIUM:
ir_message[7] |= AC1_FAN2;
break;
case climate::CLIMATE_FAN_HIGH:
ir_message[7] |= AC1_FAN3;
break;
case climate::CLIMATE_FAN_AUTO:
ir_message[7] |= AC1_FAN_AUTO;
break;
default:
break;
}
}

// Byte 9 : AC Mode | Temperature
// -- AC Mode
switch (this->mode) {
case climate::CLIMATE_MODE_AUTO:
case climate::CLIMATE_MODE_HEAT_COOL:
ir_message[9] = AC1_MODE_AUTO;
break;
case climate::CLIMATE_MODE_COOL:
ir_message[9] = AC1_MODE_COOL;
break;
case climate::CLIMATE_MODE_HEAT:
ir_message[9] = AC1_MODE_HEAT;
break;
case climate::CLIMATE_MODE_DRY:
ir_message[9] = AC1_MODE_DRY;
break;
case climate::CLIMATE_MODE_FAN_ONLY:
ir_message[9] = AC1_MODE_FAN;
break;
default:
break;
}

// -- Temperature
ir_message[9] |= (uint8_t) (this->target_temperature - 16.0f);

// Byte 11 : Remote control ID
ir_message[11] = 0xD5;

// Set checksum bytes
for (int i = 0; i < 12; i += 2) {
ir_message[i] = ~ir_message[i + 1];
}

// Send the code
auto transmit = this->transmitter_->transmit();
auto *data = transmit.get_data();

data->set_carrier_frequency(38000); // 38 kHz PWM

// Header
data->mark(AC1_HDR_MARK);
data->space(AC1_HDR_SPACE);

// Data
for (uint8_t i : ir_message) {
for (uint8_t j = 0; j < 8; j++) {
data->mark(AC1_BIT_MARK);
bool bit = i & (1 << j);
data->space(bit ? AC1_ONE_SPACE : AC1_ZERO_SPACE);
}
}

// Footer
data->mark(AC1_BIT_MARK);
data->space(0);

transmit.perform();
}

bool ZHLT01Climate::on_receive(remote_base::RemoteReceiveData data) {
// Validate header
if (!data.expect_item(AC1_HDR_MARK, AC1_HDR_SPACE)) {
ESP_LOGV(TAG, "Header fail");
return false;
}

// Decode IR message
uint8_t ir_message[12] = {0};
// Read all bytes
for (int i = 0; i < 12; i++) {
// Read bit
for (int j = 0; j < 8; j++) {
if (data.expect_item(AC1_BIT_MARK, AC1_ONE_SPACE)) {
ir_message[i] |= 1 << j;
} else if (!data.expect_item(AC1_BIT_MARK, AC1_ZERO_SPACE)) {
ESP_LOGV(TAG, "Byte %d bit %d fail", i, j);
return false;
}
}
ESP_LOGVV(TAG, "Byte %d %02X", i, ir_message[i]);
}

// Validate footer
if (!data.expect_mark(AC1_BIT_MARK)) {
ESP_LOGV(TAG, "Footer fail");
return false;
}

// Validate checksum
for (int i = 0; i < 12; i += 2) {
if (ir_message[i] != (uint8_t) (~ir_message[i + 1])) {
ESP_LOGV(TAG, "Byte %d checksum incorrect (%02X != %02X)", i, ir_message[i], (uint8_t) (~ir_message[i + 1]));
return false;
}
}

// Validate remote control ID
if (ir_message[11] != 0xD5) {
ESP_LOGV(TAG, "Invalid remote control ID");
return false;
}

// All is good to go

if ((ir_message[7] & AC1_POWER_ON) == 0) {
this->mode = climate::CLIMATE_MODE_OFF;
} else {
// Vertical swing
if ((ir_message[7] & 0x0C) == AC1_VDIR_FIXED) {
if ((ir_message[7] & 0x10) == AC1_HDIR_FIXED) {
this->swing_mode = climate::CLIMATE_SWING_OFF;
} else {
this->swing_mode = climate::CLIMATE_SWING_HORIZONTAL;
}
} else {
if ((ir_message[7] & 0x10) == AC1_HDIR_FIXED) {
this->swing_mode = climate::CLIMATE_SWING_VERTICAL;
} else {
this->swing_mode = climate::CLIMATE_SWING_BOTH;
}
}

// Preset + Fan speed
if ((ir_message[3] & AC1_FAN_TURBO) == AC1_FAN_TURBO) {
this->preset = climate::CLIMATE_PRESET_BOOST;
this->fan_mode = climate::CLIMATE_FAN_HIGH;
} else if ((ir_message[7] & 0xE1) == AC1_FAN_SILENT) {
this->preset = climate::CLIMATE_PRESET_SLEEP;
this->fan_mode = climate::CLIMATE_FAN_LOW;
} else if ((ir_message[7] & 0xE1) == AC1_FAN_AUTO) {
this->fan_mode = climate::CLIMATE_FAN_AUTO;
} else if ((ir_message[7] & 0xE1) == AC1_FAN1) {
this->fan_mode = climate::CLIMATE_FAN_LOW;
} else if ((ir_message[7] & 0xE1) == AC1_FAN2) {
this->fan_mode = climate::CLIMATE_FAN_MEDIUM;
} else if ((ir_message[7] & 0xE1) == AC1_FAN3) {
this->fan_mode = climate::CLIMATE_FAN_HIGH;
}

// AC Mode
if ((ir_message[9] & 0xE0) == AC1_MODE_COOL) {
this->mode = climate::CLIMATE_MODE_COOL;
} else if ((ir_message[9] & 0xE0) == AC1_MODE_HEAT) {
this->mode = climate::CLIMATE_MODE_HEAT;
} else if ((ir_message[9] & 0xE0) == AC1_MODE_DRY) {
this->mode = climate::CLIMATE_MODE_DRY;
} else if ((ir_message[9] & 0xE0) == AC1_MODE_FAN) {
this->mode = climate::CLIMATE_MODE_FAN_ONLY;
} else {
this->mode = climate::CLIMATE_MODE_AUTO;
}

// Taregt Temperature
this->target_temperature = (ir_message[9] & 0x1F) + 16.0f;
}

this->publish_state();
return true;
}

} // namespace zhlt01
} // namespace esphome
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