basic led control with local btn

main/localbtn.c

@@ -0,0 +1,85 @@
+/**
+ * @file localbtn.c
+ * @brief Local GPIO0 BTN reading implementation using edge capture
+ */
+
+#include "localbtn.h"
+#include "driver/gpio.h"
+#include "esp_timer.h"
+#include "esp_log.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "soc/gpio_num.h"
+#include <string.h>
+
+static const char *TAG = "LOCALBTN";
+uint8_t current_mode;
+localbtn_mode_change_callback_t callback;
+
+#define BOOT_BTN GPIO_NUM_0
+#define MAX_MODES 14 // TODO: get from control
+
+bool boot_button_pressed(void)
+{
+    return gpio_get_level(BOOT_BTN) == 0; // active LOW
+}
+
+static void monitor_task(void *arg)
+{
+    bool lastState = false;
+    while (1)
+    {
+        vTaskDelay(pdMS_TO_TICKS(10));
+
+        bool currentState = boot_button_pressed();
+        if ((currentState) && (lastState != currentState))
+        {
+            printf("BOOT button pressed\n");
+
+            current_mode = (current_mode + 1) % MAX_MODES;
+
+            ESP_LOGI(TAG, "Mode changed to: %d ", current_mode);
+
+            if (callback)
+            {
+                callback(current_mode);
+            }
+        }
+
+        lastState = currentState;
+    }
+}
+
+esp_err_t localbtn_init()
+{
+
+    gpio_config_t io_conf = {
+        .pin_bit_mask = 1ULL << BOOT_BTN,
+        .mode = GPIO_MODE_INPUT,
+        .pull_up_en = GPIO_PULLUP_ENABLE, // safe even if external pull-up exists
+        .pull_down_en = GPIO_PULLDOWN_DISABLE,
+        .intr_type = GPIO_INTR_DISABLE};
+    ESP_ERROR_CHECK(gpio_config(&io_conf));
+
+    // Create monitor task
+    BaseType_t ret = xTaskCreate(monitor_task, "localbtn_monitor", 2048, NULL, 5, NULL);
+    if (ret != pdPASS)
+    {
+        return ESP_FAIL;
+    }
+
+    // TODO: rcsignal.initialized = true;
+    ESP_LOGI(TAG, "local btn initialized on GPIO%d", BOOT_BTN);
+
+    return ESP_OK;
+}
+
+void localbtn_deinit(void)
+{
+    // TODO:
+}
+
+void localbtn_register_callback(localbtn_mode_change_callback_t cb)
+{
+    callback = cb;
+}