basic led control with local btn

main/localbtn.h

@@ -0,0 +1,36 @@
+/**
+ * @file localbtn.h
+ * @brief Local GPIO0 BTN reading implementation using edge capture
+ */
+
+#ifndef LOCALBTN_H
+#define LOCALBTN_H
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "esp_err.h"
+
+/**
+ * @brief Callback function type for mode changes
+ * @param new_mode New animation mode (0-13)
+ */
+typedef void (*localbtn_mode_change_callback_t)(uint8_t new_mode);
+
+/**
+ * @brief Initialize local btn reading
+ * @return ESP_OK on success
+ */
+esp_err_t localbtn_init();
+
+/**
+ * @brief Deinitialize local btn reading
+ */
+void localbtn_deinit(void);
+
+/**
+ * @brief Register callback for mode changes
+ * @param callback Callback function
+ */
+void localbtn_register_callback(localbtn_mode_change_callback_t cb);
+
+#endif // LOCALBTN_H