Fixes

- Updated __init__.py to include max_sd_files configuration option.
- Refactored Marlin2 class to use new namespaces and improved structure.
- Added support for binary sensors and select components in binary_sensor.py and select.py.
- Enhanced sensor.py and text_sensor.py to include new configuration options for SD card file count and selected file.
- Improved code readability and organization across multiple files.

__init__.py

@@ -2,72 +2,43 @@ import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.components import uart
 from esphome.const import (
-    CONF_ID, 
-    CONF_INDEX, 
-    CONF_SENSORS, 
-    CONF_HUMIDITY, 
-    CONF_MODEL, 
-    CONF_PIN, 
-    CONF_TEMPERATURE, 
-    UNIT_CELSIUS, 
-    UNIT_PERCENT, 
-    UNIT_SECOND, 
-    STATE_CLASS_MEASUREMENT, 
-    DEVICE_CLASS_TEMPERATURE,
-    DEVICE_CLASS_DURATION,
-    CONF_DATA,
-    CONF_VALUE
+    CONF_ID,
+    CONF_VALUE,
 )
-from esphome import pins, automation
-from esphome.core import CORE, coroutine_with_priority
+from esphome import automation
+from esphome.core import coroutine_with_priority
 
 CODEOWNERS = ["@jonatanrek"]
-DEPENDENCIES = ['uart']
-CONF_MARLIN2_ID = "marlin2_id"
+DEPENDENCIES = ["uart"]
+MULTI_CONF = False
 
-Marlin2 = cg.esphome_ns.class_('Marlin2', cg.Component)
-WriteAction = cg.esphome_ns.class_("WriteAction", automation.Action)
-PrintFileAction = cg.esphome_ns.class_("PrintFileAction", automation.Action)
+CONF_MARLIN2_ID = "marlin2_id"
+CONF_MAX_SD_FILES = "max_sd_files"
+
+marlin2_ns = cg.esphome_ns.namespace("marlin2")
+Marlin2 = marlin2_ns.class_("Marlin2", cg.PollingComponent, uart.UARTDevice)
+WriteAction = marlin2_ns.class_("WriteAction", automation.Action)
+PrintFileAction = marlin2_ns.class_("PrintFileAction", automation.Action)
 
 CONFIG_SCHEMA = cv.All(
     cv.Schema({
-            cv.GenerateID(): cv.declare_id(Marlin2),
+        cv.GenerateID(): cv.declare_id(Marlin2),
+        cv.Optional(CONF_MAX_SD_FILES, default=20): cv.int_range(min=1, max=255),
     })
     .extend(cv.COMPONENT_SCHEMA)
     .extend(uart.UART_DEVICE_SCHEMA),
 )
 
-def validate_raw_data(value):
-    if isinstance(value, str):
-        return value.encode("utf-8")
-    if isinstance(value, str):
-        return value
-    if isinstance(value, list):
-        return cv.Schema([cv.hex_uint8_t])(value)
-    raise cv.Invalid("data must either be a string wrapped in quotes or a list of bytes")
-
-@coroutine_with_priority(100.0)
-async def to_code(config):
-    var = cg.new_Pvariable(config[CONF_ID])
-    await cg.register_component(var, config)
-    await uart.register_uart_device(var, config)
-
 OPERATION_BASE_SCHEMA = cv.Schema({
     cv.GenerateID(): cv.use_id(Marlin2),
     cv.Required(CONF_VALUE): cv.templatable(cv.string_strict),
 })
 
-OPERATION_BASE_SCHEMA_2 = cv.Schema({
-    cv.GenerateID(): cv.use_id(Marlin2),
-    cv.Required(CONF_VALUE): cv.templatable(cv.string_strict),
-})
-
 @automation.register_action(
     "marlin2.write",
     WriteAction,
     OPERATION_BASE_SCHEMA,
 )
-
 async def marlin2_write_to_code(config, action_id, template_arg, args):
     paren = await cg.get_variable(config[CONF_ID])
     var = cg.new_Pvariable(action_id, template_arg, paren)
@@ -78,11 +49,18 @@ async def marlin2_write_to_code(config, action_id, template_arg, args):
 @automation.register_action(
     "marlin2.print_file",
     PrintFileAction,
-    OPERATION_BASE_SCHEMA_2,
+    OPERATION_BASE_SCHEMA,
 )
 async def marlin2_print_file_to_code(config, action_id, template_arg, args):
     paren = await cg.get_variable(config[CONF_ID])
     var = cg.new_Pvariable(action_id, template_arg, paren)
     template_ = await cg.templatable(config[CONF_VALUE], args, cg.std_string)
     cg.add(var.set_value(template_))
-    return var
+    return var
+
+@coroutine_with_priority(100.0)
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await uart.register_uart_device(var, config)
+    cg.add(var.set_max_sd_files(config[CONF_MAX_SD_FILES]))

automation.h

@@ -4,35 +4,36 @@
 #include "esphome/core/component.h"
 #include "marlin2.h"
 
-namespace esphome {
-    static const char *TAG = "marlin2";
+namespace esphome::marlin2 {
 
     template<typename... Ts> class WriteAction : public Action<Ts...> {
-        public:
-            explicit WriteAction(Marlin2 *marlin2) : marlin2_(marlin2) {}
-            TEMPLATABLE_VALUE(std::string, value)
+      public:
+        explicit WriteAction(Marlin2 *marlin2) : marlin2_(marlin2) {}
+        TEMPLATABLE_VALUE(std::string, value)
 
-            void play(Ts... x) override {
-                this->marlin2_->write(this->value_.value(x...));
-            }
+        void play(Ts... x) override {
+            this->marlin2_->write(this->value_.value(x...));
+        }
 
-        protected:
-            Marlin2 *marlin2_;
+      protected:
+        Marlin2 *marlin2_;
     };
 
 
     template<typename... Ts> class PrintFileAction : public Action<Ts...> {
-        public:
-            explicit PrintFileAction(Marlin2 *marlin2) : marlin2_(marlin2) {}
-            TEMPLATABLE_VALUE(std::string, value)
+      public:
+        explicit PrintFileAction(Marlin2 *marlin2) : marlin2_(marlin2) {}
+        TEMPLATABLE_VALUE(std::string, value)
 
-            void play(Ts... x) override {
-                std::string file_name = this->marlin2_->to_dos_name(this->value_.value(x...));
-                ESP_LOGD(TAG, "->FILE: %s", file_name.c_str());
-                this->marlin2_->write(str_sprintf("M32 P !%s#", file_name.c_str()));
-            }
+        void play(Ts... x) override {
+            static const char *const TAG = "marlin2";
+            std::string file_name = this->marlin2_->to_dos_name(this->value_.value(x...));
+            ESP_LOGD(TAG, "->FILE: %s", file_name.c_str());
+            this->marlin2_->write(str_sprintf("M32 P !%s#", file_name.c_str()));
+        }
 
-        protected:
-            Marlin2 *marlin2_;
+      protected:
+        Marlin2 *marlin2_;
     };
-}  // namespace esphome
+
+}  // namespace esphome::marlin2

binary_sensor.py

@@ -0,0 +1,26 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import binary_sensor
+from esphome.const import (
+    DEVICE_CLASS_CONNECTIVITY,
+)
+from . import Marlin2
+
+CONF_MARLIN = "marlin2"
+CONF_SD_CARD_PRESENT = "sd_card_present"
+
+CONFIG_SCHEMA = cv.Schema(
+    {
+        cv.GenerateID(CONF_MARLIN): cv.use_id(Marlin2),
+        cv.Optional(CONF_SD_CARD_PRESENT): binary_sensor.binary_sensor_schema(
+            device_class=DEVICE_CLASS_CONNECTIVITY,
+        ),
+    }
+).extend(cv.polling_component_schema("15s"))
+
+async def to_code(config):
+    server = await cg.get_variable(config[CONF_MARLIN])
+
+    if CONF_SD_CARD_PRESENT in config:
+        bs = await binary_sensor.new_binary_sensor(config[CONF_SD_CARD_PRESENT])
+        cg.add(server.add_binary_sensor(CONF_SD_CARD_PRESENT, bs))

marlin2.cpp

@@ -1,417 +1,363 @@
 #include "marlin2.h"
 #include "esphome/core/log.h"
-#include <string>
 
-namespace esphome {
+namespace esphome::marlin2 {
     static const char *TAG = "marlin2";
-    
+
+    // ── Entity registration ───────────────────────────────────────────────────
+
     #ifdef USE_SENSOR
-    void Marlin2::add_sensor(const std::string& sName, sensor::Sensor *sens) {
-        sensors.push_back({sName, sens});
+    void Marlin2::add_sensor(const std::string &name, sensor::Sensor *sens) {
+        sensors_.push_back({name, sens});
     }
-    
-    sensor::Sensor* Marlin2::find_sensor(std::string key) {
-        for (const auto& pair : sensors) {
-            if (key == std::string(pair.first)) { // Convert char* to std::string for comparison
-                return pair.second;
-            }
-        }
-        return nullptr; // Return nullptr if no match is found
+
+    void Marlin2::publish_sensor(const std::string &key, float value) {
+        auto *s = find_in_(sensors_, key);
+        if (s != nullptr && s->get_state() != value)
+            s->publish_state(value);
     }
     #endif
-    
+
     #ifdef USE_TEXT_SENSOR
-    void Marlin2::add_text_sensor(const std::string& sName, text_sensor::TextSensor *sens) {
-        text_sensors.push_back({sName, sens});
+    void Marlin2::add_text_sensor(const std::string &name, text_sensor::TextSensor *sens) {
+        text_sensors_.push_back({name, sens});
     }
-    
-    text_sensor::TextSensor* Marlin2::find_text_sensor(std::string key) {
-        for (const auto& pair : text_sensors) {
-            if (key == std::string(pair.first)) { // Convert char* to std::string for comparison
-                return pair.second;
-            }
-        }
-        return nullptr; // Return nullptr if no match is found
+
+    void Marlin2::publish_text_sensor(const std::string &key, const std::string &value) {
+        auto *s = find_in_(text_sensors_, key);
+        if (s != nullptr && s->get_state() != value)
+            s->publish_state(value);
     }
     #endif
-    
+
+    #ifdef USE_SELECT
+    void Marlin2::add_select(const std::string &name, select::Select *sel) {
+        selects_.push_back({name, sel});
+    }
+    #endif
+
+    #ifdef USE_BINARY_SENSOR
+    void Marlin2::add_binary_sensor(const std::string &name, binary_sensor::BinarySensor *bs) {
+        binary_sensors_.push_back({name, bs});
+    }
+
+    void Marlin2::publish_binary_sensor(const std::string &key, bool value) {
+        auto *s = find_in_(binary_sensors_, key);
+        if (s != nullptr && s->state != value)
+            s->publish_state(value);
+    }
+    #endif
+
+    // ── Lifecycle ─────────────────────────────────────────────────────────────
+
     void Marlin2::setup() {
-        MarlinOutput.reserve(256);
-        MarlinOutput = "";
-        
-        MarlinResponseOutput.reserve(256);
-        MarlinResponseOutput = "";
-        
-        MarlinTime.reserve(32);
-        PrinterState.reserve(32);
-        
-        //ESP_LOGD(TAG, "M155 S10");
-        
+        marlin_output_.reserve(256);
+        marlin_time_.reserve(32);
+
         write_str("\r\n\r\nM155 S10\r\n");
         write_str("\r\n\r\nM117 ESP Home Connected!\r\n");
         flush();
-        
+
         set_printer_state("IDLE");
+
+        set_interval(15000, [this]() {
+            if (print_progress_ != 100)
+                write_str("M27\r\nM31\r\n");
+        });
     }
-    
-    void Marlin2::write(std::string gcode) {
-        ESP_LOGD(TAG, "->GCODE: %s", gcode.c_str());
-        write_str((std::string("\r\n\r\n") + gcode + std::string("\r\n")).c_str());
-        flush();
-    }
-    
-    void Marlin2::update() {
+
+    void Marlin2::loop() {
         while (available()) {
             char c = read();
-            if( c == '\n' || c == '\r' ) {
-                //ESP_LOGD(TAG, "#%s#",MarlinOutput.c_str());    
+            if (c == '\n' || c == '\r') {
                 process_line();
             } else {
-                MarlinOutput += c;
+                marlin_output_ += c;
             }
         }
-        
-        if(millis() - millisProgress > 15000 && print_progress != 100)  {
-            millisProgress = millis();
-            
-            //ESP_LOGD(TAG, "M27");
-            //ESP_LOGD(TAG, "M31");
-            
-            write_str("M27\r\nM31\r\n");
-        }
     }
-    
-    void  Marlin2::process_line() {
-        if(MarlinOutput.size() < 3) {
-            MarlinOutput="";
+
+    void Marlin2::dump_config() {
+        ESP_LOGCONFIG(TAG, "Marlin2:");
+        this->check_uart_settings(115200);
+    }
+
+    // ── G-code output ─────────────────────────────────────────────────────────
+
+    void Marlin2::write(const std::string &gcode) {
+        ESP_LOGD(TAG, "->GCODE: %s", gcode.c_str());
+        write_str(("\r\n\r\n" + gcode + "\r\n").c_str());
+        flush();
+    }
+
+    // ── Line parsing ──────────────────────────────────────────────────────────
+
+    void Marlin2::process_line() {
+        if (marlin_output_.size() < 3) {
+            marlin_output_ = "";
             return;
         }
-        
-        if(MarlinOutput.compare("ok")  == 0 || MarlinOutput.compare(" ok")  == 0) {
-            listingFile = false;
-            MarlinOutput="";
+
+        if (marlin_output_.compare("ok") == 0 || marlin_output_.compare(" ok") == 0) {
+            listing_file_ = false;
+            marlin_output_ = "";
             return;
         }
-        
-        
-        ESP_LOGD(TAG, "DEBUG>#%s#",MarlinOutput.c_str());
-        
-        if(!listingFile && MarlinOutput.compare("Begin file list") == 0) {
+
+        ESP_LOGD(TAG, "DEBUG>#%s#", marlin_output_.c_str());
+
+        if (!listing_file_ && marlin_output_.compare("Begin file list") == 0) {
             ESP_LOGD(TAG, "Listing of files started!");
-            listingFile = true;
-            //reset string for next line
-            MarlinOutput="";
+            listing_file_ = true;
+            file_table_.clear();
+            marlin_output_ = "";
             return;
         }
-        
-        if(listingFile && MarlinOutput.compare("End file list") == 0) {                
+
+        if (listing_file_ && marlin_output_.compare("End file list") == 0) {
             ESP_LOGD(TAG, "Listing of files stopped!");
-            listingFile = false;
-            //reset string for next line
-            
-            #ifdef USE_TEXT_SENSOR
-            std::string sd_files;
-            
-            for (const auto& [key, value] : file_table_) {
-                if (!sd_files.empty()) sd_files += "|";
-                sd_files += key;
-            }
-            
-            if (find_text_sensor("sd_card_files") != nullptr){
-                ESP_LOGD(TAG, "SD Files: %s", sd_files.c_str());
-                find_text_sensor("sd_card_files")->publish_state(sd_files.c_str());
-            }
+            listing_file_ = false;
+            publish_sd_files();
+            #ifdef USE_BINARY_SENSOR
+            publish_binary_sensor("sd_card_present", true);
             #endif
-            
-            MarlinOutput="";
+            #ifdef USE_SENSOR
+            publish_sensor("sd_card_file_count", static_cast<float>(file_table_.size()));
+            #endif
+            marlin_output_ = "";
             return;
         }
-        
-        if(listingFile && MarlinOutput.find(".GCO ") > 1) {                            
-            int first_space = MarlinOutput.find(' ');
-            int second_space = MarlinOutput.find(' ', first_space + 1);
-            
-            if(first_space > 0) {
-                std::string short_name = MarlinOutput.substr(0, first_space);
-                
-                if (short_name.find("/") != std::string::npos){ // Omit subdirectories
-                    ESP_LOGD(TAG, "peskočeno kvůli vnořen %s",short_name.c_str());
-                    MarlinOutput="";
+
+        if (listing_file_ && marlin_output_.find(".GCO ") > 1) {
+            size_t first_space  = marlin_output_.find(' ');
+            size_t second_space = marlin_output_.find(' ', first_space + 1);
+
+            if (first_space != std::string::npos) {
+                std::string short_name = marlin_output_.substr(0, first_space);
+
+                if (short_name.find("/") != std::string::npos) {
+                    ESP_LOGD(TAG, "Skipping subdirectory: %s", short_name.c_str());
+                    marlin_output_ = "";
                     return;
                 }
-                
-                std::string long_name = short_name;
-                
-                if (second_space > first_space){
-                    long_name = MarlinOutput.substr(second_space + 1);
-                }
-                
+
+                std::string long_name = (second_space != std::string::npos && second_space > first_space)
+                    ? marlin_output_.substr(second_space + 1)
+                    : short_name;
+
                 file_table_[long_name] = short_name;
             }
-            
-            //reset string for next line
-            MarlinOutput="";
+
+            marlin_output_ = "";
             return;
         }
-        
-        //Parse periodic Temperature read out message
-        if(
-            MarlinOutput.find(" T:")    == 0 ||
-            MarlinOutput.find("T:")     == 0 ||
-            MarlinOutput.find("ok T:")  == 0 ||
-            MarlinOutput.find(" ok T:") == 0
+
+        // Temperature report: T:xx/xx B:xx/xx
+        if (
+            marlin_output_.find(" T:")    == 0 ||
+            marlin_output_.find("T:")     == 0 ||
+            marlin_output_.find("ok T:")  == 0 ||
+            marlin_output_.find(" ok T:") == 0
         ) {
-            float ext_temperature, ext_set_temperature, bed_temperature, bed_set_temperature;
-            if (process_temp_msg(&ext_temperature, &ext_set_temperature, &bed_temperature, &bed_set_temperature) != 0)  {
+            float ext_temp, ext_set, bed_temp, bed_set;
+            if (process_temp_msg(&ext_temp, &ext_set, &bed_temp, &bed_set) != 0) {
                 #ifdef USE_SENSOR
-                if (find_sensor("bed_temperature") != nullptr)
-                find_sensor("bed_temperature")->publish_state(bed_temperature);
-                
-                if (find_sensor("bed_set_temperature") != nullptr)
-                find_sensor("bed_set_temperature")->publish_state(bed_set_temperature);
-                
-                if (find_sensor("ext_temperature") != nullptr)
-                find_sensor("ext_temperature")->publish_state(ext_temperature);
-                
-                if (find_sensor("ext_set_temperature") != nullptr)
-                find_sensor("ext_set_temperature")->publish_state(ext_set_temperature);
+                publish_sensor("bed_temperature",     bed_temp);
+                publish_sensor("bed_set_temperature", bed_set);
+                publish_sensor("ext_temperature",     ext_temp);
+                publish_sensor("ext_set_temperature", ext_set);
                 #endif
                 #ifdef USE_TEXT_SENSOR
-                if(bed_set_temperature==0.0 && ext_set_temperature==0.0)  {
-                    if(ext_temperature < 32.0 && bed_temperature < 32.0){ //TODO define constants for these
+                if (bed_set == 0.0f && ext_set == 0.0f) {
+                    if (ext_temp < 32.0f && bed_temp < 32.0f)
                         set_printer_state("IDLE");
-                    }         
-                    else if(ext_temperature < 150.0 && bed_temperature < 55.0){
+                    else if (ext_temp < 150.0f && bed_temp < 55.0f)
                         set_printer_state("COOLING");
-                    }
                 }
-                if(print_progress == 0.0 && (bed_set_temperature!=0.0 || ext_set_temperature!=0.0))  {
-                    //print_time_offset = print_time save print time ofset to deduct from total value send to hass
+                if (print_progress_ == 0.0f && (bed_set != 0.0f || ext_set != 0.0f))
                     set_printer_state("PREHEATING");
-                }
                 #endif
-                
-                //ESP_LOGD(TAG, "Bed Temperature=%.1f°C Ext Temperature=%.1f°C ", bed_temperature, ext_temperature);
             }
-            
-            //reset string for next line
-            MarlinOutput="";
+            marlin_output_ = "";
             return;
         }
-        
-        //Parse Progress of the print
-        if(MarlinOutput.find("SD printing byte") == 0 ) {
-            print_progress = process_progress_msg();
+
+        // Print progress: SD printing byte X/Y
+        if (marlin_output_.find("SD printing byte") == 0) {
+            print_progress_ = process_progress_msg();
             #ifdef USE_SENSOR
-            if (find_sensor("print_progress") != nullptr)
-            find_sensor("print_progress")->publish_state(print_progress);
-            
-            //ESP_LOGD(TAG, "progress=%.1f", print_progress);
+            publish_sensor("print_progress", print_progress_);
             #endif
-            
             set_printer_state("PRINTING");
-            //reset string for next line
-            MarlinOutput="";
+            marlin_output_ = "";
             return;
         }
-        
-        //Parse Printitme
-        if(MarlinOutput.find("echo:Print time: ") == 0) {
-            double current=0;
-            double remaining=0;
-            if (process_print_time_msg(&current, &remaining, print_progress) != 0)  {
-                #ifdef USE_SENSOR    
-                if (find_sensor("print_time") != nullptr)
-                find_sensor("print_time")->publish_state(current);
-                
-                if (find_sensor("print_time_remaining") != nullptr)
-                find_sensor("print_time_remaining")->publish_state(remaining);
+
+        // Print time: echo:Print time: Xh Xm Xs
+        if (marlin_output_.find("echo:Print time: ") == 0) {
+            double current = 0, remaining = 0;
+            if (process_print_time_msg(&current, &remaining, print_progress_) != 0) {
+                #ifdef USE_SENSOR
+                publish_sensor("print_time",           static_cast<float>(current));
+                publish_sensor("print_time_remaining", static_cast<float>(remaining));
                 #endif
-                
-                //ESP_LOGD(TAG, "time=%f remaining=%f", current, remaining);
             }
-            
-            //reset string for next line
-            MarlinOutput="";
+            marlin_output_ = "";
             return;
         }
-        
-        //File opened: salma_~2.gco Size: 12279971
-        if(MarlinOutput.find("File opened: ") == 0) {
-            size_t  first_space = MarlinOutput.find("File opened: ");
-            size_t  second_space = MarlinOutput.find(" Size: ");
-            
-            if (first_space != std::string::npos && second_space != std::string::npos) {
-                size_t start = first_space + std::strlen("File opened: ");
-                size_t len = second_space - start;
-                ESP_LOGD(TAG, "position");
-                std::string filename = from_dos_name(MarlinOutput.substr(start, len));
-                ESP_LOGD("Soubor: %s\n", filename.c_str());        
-                
+
+        // File opened: SALMA_~2.GCO Size: 12279971
+        if (marlin_output_.find("File opened: ") == 0) {
+            size_t start_pos = std::strlen("File opened: ");
+            size_t size_pos  = marlin_output_.find(" Size: ");
+            if (size_pos != std::string::npos) {
+                std::string filename = from_dos_name(marlin_output_.substr(start_pos, size_pos - start_pos));
+                ESP_LOGD(TAG, "File: %s", filename.c_str());
                 #ifdef USE_TEXT_SENSOR
-                if (find_text_sensor("sd_card_file_selected") != nullptr){
-                    find_text_sensor("sd_card_file_selected")->publish_state(filename.c_str());
-                }
+                publish_text_sensor("sd_card_file_selected", filename);
                 #endif
             }
-            
-            //reset string for next line
-            MarlinOutput="";
+            marlin_output_ = "";
             return;
         }
-        
-        //Print From SD Card Started
-        if(MarlinOutput.compare("File selected") == 0) {                
+
+        if (marlin_output_.compare("File selected") == 0) {
             set_printer_state("PRINTING");
-            
-            //reset string for next line
-            MarlinOutput="";
+            marlin_output_ = "";
             return;
         }
-        
-        //Print Finished
-        if(MarlinOutput.compare("Done printing") == 0) {       
-            print_progress = 100;
-            #ifdef USE_SENSOR    
-            if (find_sensor("print_progress") != nullptr)
-            find_sensor("print_progress")->publish_state(print_progress);
-            
-            if (find_sensor("print_time_remaining") != nullptr)
-            find_sensor("print_time_remaining")->publish_state(0);
+
+        if (marlin_output_.compare("Done printing") == 0) {
+            print_progress_ = 100;
+            #ifdef USE_SENSOR
+            publish_sensor("print_progress",       100.0f);
+            publish_sensor("print_time_remaining", 0.0f);
             #endif
-            #ifdef USE_TEXT_SENSOR         
             set_printer_state("FINISHED");
-            #endif            
-            
-            //reset string for next line
-            MarlinOutput="";
+            marlin_output_ = "";
             return;
         }
-        
-        // //Print Paused
-        // if(MarlinOutput.compare("Printer halted") == 0) {                
-        //     set_printer_state("PAUSED");
-        
-        //     //reset string for next line
-        //     MarlinOutput="";
-        //     return;
-        // }
-        
-        // //Print Stoped              
-        if(MarlinOutput.compare("Print Aborted") == 0) {                
+
+        if (marlin_output_.compare("Print Aborted") == 0) {
             set_printer_state("STOPPED");
-            
-            //reset string for next line
-            MarlinOutput="";
+            marlin_output_ = "";
             return;
-        }        
-        
-        ESP_LOGD(TAG, ">#%s#",MarlinOutput.c_str());        
-        MarlinOutput="";
-        return;
-    }
-    
-    int Marlin2::process_temp_msg(float* ext_temperature, float* ext_set_temperature, float* bed_temperature, float* bed_set_temperature) {
-        float dc;
-        
-        while(MarlinOutput.find(" ") != std::string::npos)
-        MarlinOutput.erase(MarlinOutput.find(' '), 1);
-        
-        while(MarlinOutput.find("ok") != std::string::npos)
-        MarlinOutput.erase(MarlinOutput.find("ok"), 2);
-        
-        if(sscanf(MarlinOutput.c_str() ,"T:%f/%fB:%f/%f", ext_temperature, ext_set_temperature, bed_temperature, bed_set_temperature) == 4 )
-        return 1;
-        
-        if(sscanf(MarlinOutput.c_str() ,"T:%f/%f(%f)B:%f/%f(%f)", ext_temperature, ext_set_temperature, &dc, bed_temperature, bed_set_temperature, &dc) == 6 )
-        return 2;
-        
-        if(sscanf(MarlinOutput.c_str() ,"T:%f/%fT0:%f/%fT1:%f/%fB:%f/%f", ext_temperature, ext_set_temperature, &dc, &dc, &dc, &dc, bed_temperature, bed_set_temperature) == 8 )
-        return 3;  
-        
-        if(sscanf(MarlinOutput.c_str() ,"T0:%f/%fT1:%f/%fB:%f/%f", ext_temperature, ext_set_temperature, &dc, &dc, bed_temperature, bed_set_temperature) == 6 )
-        return 4;                       
-        
-        return 0;
-    }
-    
-    float Marlin2::process_progress_msg(){
-        float current = std::stoi(MarlinOutput.substr(17));
-        float total = std::stoi(MarlinOutput.substr(MarlinOutput.find('/')+1));
-        
-        if (total==0)  {
-            return 0.0;
         }
-        
-        return round(((float) current * 100.0) / (float) total);
+
+        ESP_LOGD(TAG, ">#%s#", marlin_output_.c_str());
+        marlin_output_ = "";
     }
-    
-    int Marlin2::process_print_time_msg(double* current, double* remaining, float progress){
-        MarlinTime = MarlinOutput.substr(16);
-        float d = 0, h = 0, m = 0, s = 0; 
-        
-        //ESP_LOGD(TAG,MarlinTime.c_str());
-        
-        if (sscanf(MarlinTime.c_str() ,"%fd %fh %fm %fs", &d, &h, &m, &s)!=4)  {
-            d=0;
-            if (sscanf(MarlinTime.c_str() ,"%fh %fm %fs", &h, &m, &s)!=3)  {
-                d=0; h=0;
-                if (sscanf(MarlinTime.c_str() ,"%fm %fs", &m, &s)!=2)  {
-                    d=0; h=0; m=0;
-                    if (sscanf(MarlinTime.c_str() ,"%fs", &s)!=1)  {
-                        return 0;
-                    }
-                }
+
+    // ── SD card file list ─────────────────────────────────────────────────────
+
+    void Marlin2::publish_sd_files() {
+        std::string chunk;
+        uint8_t count = 0;
+        #ifdef USE_SELECT
+        std::vector<std::string> file_names;
+        #endif
+
+        for (const auto &[key, value] : file_table_) {
+            if (count >= max_sd_files_) {
+                ESP_LOGW(TAG, "SD file list truncated to %u files (total: %u)",
+                         max_sd_files_, (unsigned) file_table_.size());
+                break;
             }
+            if (!chunk.empty()) chunk += "|";
+            chunk += key;
+            #ifdef USE_SELECT
+            file_names.push_back(key);
+            #endif
+            count++;
         }
-        
-        *current = round(((d)*24*60*60) + ((h)*60*60) + ((m)*60) + (s));
-        
-        if(progress != 0.0 && progress != 100.0) {
-            *remaining = (((100 * *current) / round(progress)) - *current);
-        }           
-        
-        return 1;
-    }
-    
-    void Marlin2::set_printer_state(std::string status){
-        #ifdef USE_TEXT_SENSOR         
-        // if (!PrinterState.compare(status))
-        //     return; 
-        
-        if (find_text_sensor("printer_state") != nullptr){
-            find_text_sensor("printer_state")->publish_state(status);
-        }
-        
-        // ESP_LOGD(TAG, "Printer Status %s", status.c_str());
-        // PrinterState = status;
+
+        #ifdef USE_TEXT_SENSOR
+        publish_text_sensor("sd_card_files", chunk);
+        #endif
+        #ifdef USE_SELECT
+        auto *sel = find_in_(selects_, std::string("sd_card_file_select"));
+        if (sel != nullptr)
+            sel->traits.set_options(file_names);
         #endif
     }
-    
-    std::string Marlin2::to_dos_name(std::string filename) {
-        auto it = file_table_.find(filename);
-        if (it != file_table_.end()) {
-            return file_table_[filename];
-        }
 
-        return filename;
+    // ── Message parsers ───────────────────────────────────────────────────────
+
+    int Marlin2::process_temp_msg(float *ext_temperature, float *ext_set_temperature, float *bed_temperature, float *bed_set_temperature) {
+        float dc;
+
+        while (marlin_output_.find(" ") != std::string::npos)
+            marlin_output_.erase(marlin_output_.find(' '), 1);
+        while (marlin_output_.find("ok") != std::string::npos)
+            marlin_output_.erase(marlin_output_.find("ok"), 2);
+
+        if (sscanf(marlin_output_.c_str(), "T:%f/%fB:%f/%f", ext_temperature, ext_set_temperature, bed_temperature, bed_set_temperature) == 4)
+            return 1;
+        if (sscanf(marlin_output_.c_str(), "T:%f/%f(%f)B:%f/%f(%f)", ext_temperature, ext_set_temperature, &dc, bed_temperature, bed_set_temperature, &dc) == 6)
+            return 2;
+        if (sscanf(marlin_output_.c_str(), "T:%f/%fT0:%f/%fT1:%f/%fB:%f/%f", ext_temperature, ext_set_temperature, &dc, &dc, &dc, &dc, bed_temperature, bed_set_temperature) == 8)
+            return 3;
+        if (sscanf(marlin_output_.c_str(), "T0:%f/%fT1:%f/%fB:%f/%f", ext_temperature, ext_set_temperature, &dc, &dc, bed_temperature, bed_set_temperature) == 6)
+            return 4;
+
+        return 0;
     }
 
-    std::string Marlin2::from_dos_name(std::string dos_filename ) {
-        for (const auto& [key, value] : file_table_) {
-            if (value == dos_filename) {
-                return key;
+    float Marlin2::process_progress_msg() {
+        size_t slash_pos = marlin_output_.find('/');
+        if (slash_pos == std::string::npos || slash_pos + 1 >= marlin_output_.size())
+            return 0.0f;
+
+        float current = std::stof(marlin_output_.substr(17));
+        float total   = std::stof(marlin_output_.substr(slash_pos + 1));
+
+        if (total < 1.0f)
+            return 0.0f;
+
+        return roundf((current * 100.0f) / total);
+    }
+
+    int Marlin2::process_print_time_msg(double *current, double *remaining, float progress) {
+        marlin_time_ = marlin_output_.substr(16);
+        float d = 0, h = 0, m = 0, s = 0;
+
+        if (sscanf(marlin_time_.c_str(), "%fd %fh %fm %fs", &d, &h, &m, &s) != 4) {
+            d = 0;
+            if (sscanf(marlin_time_.c_str(), "%fh %fm %fs", &h, &m, &s) != 3) {
+                h = 0;
+                if (sscanf(marlin_time_.c_str(), "%fm %fs", &m, &s) != 2) {
+                    m = 0;
+                    if (sscanf(marlin_time_.c_str(), "%fs", &s) != 1)
+                        return 0;
+                }
             }
         }
 
+        *current = round((d * 24 * 60 * 60) + (h * 60 * 60) + (m * 60) + s);
+
+        if (progress != 0.0f && progress != 100.0f)
+            *remaining = ((100.0 * *current) / round(progress)) - *current;
+
+        return 1;
+    }
+
+    void Marlin2::set_printer_state(const std::string &status) {
+        #ifdef USE_TEXT_SENSOR
+        publish_text_sensor("printer_state", status);
+        #endif
+    }
+
+    // ── Filename mapping ──────────────────────────────────────────────────────
+
+    std::string Marlin2::to_dos_name(const std::string &filename) {
+        auto it = file_table_.find(filename);
+        return (it != file_table_.end()) ? it->second : filename;
+    }
+
+    std::string Marlin2::from_dos_name(const std::string &dos_filename) {
+        for (const auto &[key, value] : file_table_)
+            if (value == dos_filename) return key;
         return dos_filename;
     }
 
-    std::string to_lower(std::string s) {
-        return s;
-        // String arduinoStr(s.c_str());   // převod na Arduino String
-        // arduinoStr.toLowerCase();       // změní obsah přímo
-        // return std::string(arduinoStr.c_str()); // zpět na std::string
-    }
-    
-}  // namespace esphome
+}  // namespace esphome::marlin2

marlin2.h

@@ -10,56 +10,83 @@
 #ifdef USE_TEXT_SENSOR
 #include "esphome/components/text_sensor/text_sensor.h"
 #endif
+#ifdef USE_SELECT
+#include "esphome/components/select/select.h"
+#endif
+#ifdef USE_BINARY_SENSOR
+#include "esphome/components/binary_sensor/binary_sensor.h"
+#endif
 
-namespace esphome {
+namespace esphome::marlin2 {
 
-class Marlin2 : public PollingComponent, public uart::UARTDevice {
-    public:
-        Marlin2() = default;
+class Marlin2 : public Component, public uart::UARTDevice {
+  public:
+    Marlin2() = default;
 
-        #ifdef USE_SENSOR
-            void add_sensor(const std::string& sName, sensor::Sensor *sens);
-            sensor::Sensor* find_sensor(std::string key);
-        #endif
-        #ifdef USE_TEXT_SENSOR
-            void add_text_sensor(const std::string& sName, text_sensor::TextSensor *tSens);
-            text_sensor::TextSensor* find_text_sensor(std::string key);
-        #endif
-        void write(std::string status);
-        std::string to_dos_name(std::string filename);
-        std::string from_dos_name(std::string dos_filename);
-        std::string to_lower(std::string s);
-        
-        float get_setup_priority() const override { return setup_priority::LATE; }
-        void setup() override;
-        void update() override;
+    #ifdef USE_SENSOR
+        void add_sensor(const std::string &name, sensor::Sensor *sens);
+        void publish_sensor(const std::string &key, float value);
+    #endif
+    #ifdef USE_TEXT_SENSOR
+        void add_text_sensor(const std::string &name, text_sensor::TextSensor *tSens);
+        void publish_text_sensor(const std::string &key, const std::string &value);
+    #endif
+    #ifdef USE_SELECT
+        void add_select(const std::string &name, select::Select *sel);
+    #endif
+    #ifdef USE_BINARY_SENSOR
+        void add_binary_sensor(const std::string &name, binary_sensor::BinarySensor *bs);
+        void publish_binary_sensor(const std::string &key, bool value);
+    #endif
 
-    protected:
-        std::string MarlinOutput;
-        std::string MarlinResponseOutput;
-        std::string MarlinTime;
-        std::string PrinterState;
+    void set_max_sd_files(uint8_t n) { max_sd_files_ = n; }
 
-        float print_progress = 0;
-        double print_time_offset = 0;
-        
-        #ifdef USE_SENSOR
-            std::vector<std::pair<std::string, sensor::Sensor *>> sensors;
-        #endif
-        #ifdef USE_TEXT_SENSOR
-            std::vector<std::pair<std::string, text_sensor::TextSensor *>> text_sensors;
-        #endif
+    void write(const std::string &gcode);
+    std::string to_dos_name(const std::string &filename);
+    std::string from_dos_name(const std::string &dos_filename);
 
-        void process_line();
-        void set_printer_state(std::string status);
-        int process_temp_msg(float* ext_temperature, float* ext_set_temperature, float* bed_temperature, float* bed_set_temperature);
-        float process_progress_msg();
-        int process_print_time_msg(double* current, double* remaining, float progress);
+    float get_setup_priority() const override { return setup_priority::LATE; }
+    void setup() override;
+    void loop() override;
+    void dump_config() override;
 
-    private:
-        unsigned long millisProgress=0;
-        std::unordered_map<std::string, std::string> file_table_;
-        bool listingFile = false;
+  protected:
+    std::string marlin_output_;
+    std::string marlin_time_;
+
+    float print_progress_ = 0;
+    uint8_t max_sd_files_ = 20;
+
+    #ifdef USE_SENSOR
+        std::vector<std::pair<std::string, sensor::Sensor *>> sensors_;
+    #endif
+    #ifdef USE_TEXT_SENSOR
+        std::vector<std::pair<std::string, text_sensor::TextSensor *>> text_sensors_;
+    #endif
+    #ifdef USE_SELECT
+        std::vector<std::pair<std::string, select::Select *>> selects_;
+    #endif
+    #ifdef USE_BINARY_SENSOR
+        std::vector<std::pair<std::string, binary_sensor::BinarySensor *>> binary_sensors_;
+    #endif
+
+    void process_line();
+    void set_printer_state(const std::string &status);
+    void publish_sd_files();
+    int process_temp_msg(float *ext_temperature, float *ext_set_temperature, float *bed_temperature, float *bed_set_temperature);
+    float process_progress_msg();
+    int process_print_time_msg(double *current, double *remaining, float progress);
+
+  private:
+    template<typename T>
+    static T *find_in_(std::vector<std::pair<std::string, T *>> &vec, const std::string &key) {
+        for (auto &pair : vec)
+            if (pair.first == key) return pair.second;
+        return nullptr;
+    }
+
+    std::unordered_map<std::string, std::string> file_table_;
+    bool listing_file_ = false;
 };
 
-}  // namespace esphome
+}  // namespace esphome::marlin2

select.py

@@ -0,0 +1,26 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import select
+from esphome.const import (
+    ENTITY_CATEGORY_NONE,
+)
+from . import Marlin2
+
+CONF_MARLIN = "marlin2"
+CONF_SD_CARD_FILE_SELECT = "sd_card_file_select"
+
+CONFIG_SCHEMA = cv.Schema(
+    {
+        cv.GenerateID(CONF_MARLIN): cv.use_id(Marlin2),
+        cv.Optional(CONF_SD_CARD_FILE_SELECT): select.select_schema(
+            entity_category=ENTITY_CATEGORY_NONE,
+        ),
+    }
+).extend(cv.polling_component_schema("15s"))
+
+async def to_code(config):
+    server = await cg.get_variable(config[CONF_MARLIN])
+
+    if CONF_SD_CARD_FILE_SELECT in config:
+        sel = await select.new_select(config[CONF_SD_CARD_FILE_SELECT], options=[])
+        cg.add(server.add_select(CONF_SD_CARD_FILE_SELECT, sel))

sensor.py

@@ -1,21 +1,12 @@
 import esphome.codegen as cg
 import esphome.config_validation as cv
-from esphome import automation
-from esphome.components import uart
 from esphome.components import sensor
-# from esphome.components import text_sensor
 from esphome.const import (
-    CONF_ID, 
-    CONF_INDEX, 
-    CONF_SENSORS, 
-    CONF_HUMIDITY, 
-    CONF_MODEL, 
-    CONF_PIN, 
-    CONF_TEMPERATURE, 
-    UNIT_CELSIUS, 
-    UNIT_PERCENT, 
-    UNIT_SECOND, 
-    STATE_CLASS_MEASUREMENT, 
+    CONF_ID,
+    UNIT_CELSIUS,
+    UNIT_PERCENT,
+    UNIT_SECOND,
+    STATE_CLASS_MEASUREMENT,
     DEVICE_CLASS_TEMPERATURE,
     DEVICE_CLASS_DURATION,
 )
@@ -30,9 +21,10 @@ CONF_EXT_SET_TEMPERATURE = "ext_set_temperature"
 CONF_PRINT_PROGRESS = "print_progress"
 CONF_PRINT_TIME = "print_time"
 CONF_PRINT_TIME_REMAINING = "print_time_remaining"
+CONF_SD_CARD_FILE_COUNT = "sd_card_file_count"
 
 CONF_MARLIN = "marlin2"
-CONFIG_SCHEMA =  cv.Schema(
+CONFIG_SCHEMA = cv.Schema(
     {
         cv.GenerateID(CONF_MARLIN): cv.use_id(Marlin2),
         cv.Optional(CONF_BED_TEMPERATURE): sensor.sensor_schema(
@@ -76,13 +68,20 @@ CONFIG_SCHEMA =  cv.Schema(
             device_class=DEVICE_CLASS_DURATION,
             state_class=STATE_CLASS_MEASUREMENT,
         ),
+        cv.Optional(CONF_SD_CARD_FILE_COUNT): sensor.sensor_schema(
+            accuracy_decimals=0,
+            state_class=STATE_CLASS_MEASUREMENT,
+        ),
     }
 ).extend(cv.polling_component_schema("15s"))
 
 async def to_code(config):
     server = await cg.get_variable(config[CONF_MARLIN])
 
-    for sName in [CONF_BED_TEMPERATURE, CONF_BED_SET_TEMPERATURE, CONF_EXT_TEMPERATURE, CONF_EXT_SET_TEMPERATURE, CONF_PRINT_PROGRESS, CONF_PRINT_TIME, CONF_PRINT_TIME_REMAINING]:
+// Takhle:
+auto *s = find_sensor("bed_temperature");
+if (s != nullptr && s->get_state() != bed_temperature)
+    s->publish_state(bed_temperature);
         if sName in config:
             sens = await sensor.new_sensor(config[sName])
-            cg.add(server.add_sensor(sName,sens))
+            cg.add(server.add_sensor(sName, sens))

text_sensor.py

@@ -7,16 +7,20 @@ from esphome.const import (
 from . import Marlin2
 
 CONF_MARLIN = "marlin2"
-CONFIG_SCHEMA =  cv.Schema(
+CONF_PRINTER_STATE = "printer_state"
+CONF_SD_CARD_FILES = "sd_card_files"
+CONF_SD_CARD_FILE_SELECTED = "sd_card_file_selected"
+
+CONFIG_SCHEMA = cv.Schema(
     {
         cv.GenerateID(CONF_MARLIN): cv.use_id(Marlin2),
-        cv.Optional("printer_state"): text_sensor.text_sensor_schema(
+        cv.Optional(CONF_PRINTER_STATE): text_sensor.text_sensor_schema(
             entity_category=ENTITY_CATEGORY_DIAGNOSTIC,
         ),
-        cv.Optional("sd_card_files"): text_sensor.text_sensor_schema(
+        cv.Optional(CONF_SD_CARD_FILES): text_sensor.text_sensor_schema(
             entity_category=ENTITY_CATEGORY_DIAGNOSTIC,
         ),
-        cv.Optional("sd_card_file_selected"): text_sensor.text_sensor_schema(
+        cv.Optional(CONF_SD_CARD_FILE_SELECTED): text_sensor.text_sensor_schema(
             entity_category=ENTITY_CATEGORY_DIAGNOSTIC,
         ),
     }
@@ -25,7 +29,7 @@ CONFIG_SCHEMA =  cv.Schema(
 async def to_code(config):
     server = await cg.get_variable(config[CONF_MARLIN])
 
-    for sName in ["printer_state", "sd_card_files", "sd_card_file_selected"]:
+    for sName in [CONF_PRINTER_STATE, CONF_SD_CARD_FILES, CONF_SD_CARD_FILE_SELECTED]:
         if sName in config:
             sens = await text_sensor.new_text_sensor(config[sName])
-            cg.add(server.add_text_sensor(sName,sens))
+            cg.add(server.add_text_sensor(sName, sens))