chore: onewire

include/onewire_temp.h

@@ -0,0 +1,46 @@
+#ifndef ONEWIRE_TEMP_H
+#define ONEWIRE_TEMP_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "mqtt_handler.h"
+
+#define ONEWIRE_MAX_SENSORS 16
+#define ONEWIRE_TEMP_INVALID -999.0f
+
+typedef enum {
+  ONEWIRE_STATE_READY,
+  ONEWIRE_STATE_CONVERTING,
+  ONEWIRE_STATE_READ
+} onewire_state_t;
+
+// Initialize OneWire temperature system
+void onewire_temp_init(void);
+
+// Process all sensors (call regularly)
+void onewire_temp_process(void);
+
+// Start parallel conversion on all sensors
+void onewire_temp_start_parallel(void);
+
+// Set parallel conversion mode
+void onewire_temp_set_parallel(bool enable);
+
+// Get temperature for sensor index
+float onewire_temp_get(uint8_t index);
+
+// Get total number of discovered sensors
+uint8_t onewire_temp_count(void);
+
+// Get sensor address
+const uint8_t* onewire_temp_address(uint8_t index);
+
+// Check if sensor is valid
+bool onewire_temp_valid(uint8_t index);
+
+// MQTT
+void onewire_temp_publish_discovery(MQTTClient* client, const char* node_id);
+void onewire_temp_publish_values(MQTTClient* client, const char* node_id);
+
+#endif  // ONEWIRE_TEMP_H