Remove build directories

esp32-thread/open-thread-rcp/main/CMakeLists.txt

@@ -1,3 +1,4 @@
 idf_component_register(SRCS "esp_ot_rcp.c"
                        PRIV_REQUIRES esp_coex esp_event nvs_flash openthread
-                       INCLUDE_DIRS ".")
+                       INCLUDE_DIRS "."
+                       REQUIRES led_strip)

esp32-thread/open-thread-rcp/main/esp_ot_rcp.c

@@ -21,6 +21,10 @@
 #include "esp_ot_config.h"
 #include "esp_vfs_eventfd.h"
 #include "driver/uart.h"
+#include "driver/rmt.h"
+#include "led_strip.h"
+#include "esp_err.h"
+#include "driver/rmt_tx.h"
 
 #if CONFIG_EXTERNAL_COEX_ENABLE
 #include "esp_coexist.h"
@@ -71,6 +75,33 @@ static void ot_task_worker(void *aContext)
     vTaskDelete(NULL);
 }
 
+#define LED_GPIO    18
+#define LED_COUNT   1
+
+static led_strip_handle_t led_strip = NULL;
+
+void init_led_strip(void)
+{
+    led_strip_config_t strip_config = {
+        .strip_gpio_num = LED_GPIO,
+        .max_leds       = LED_COUNT,
+    };
+
+    led_strip_rmt_config_t rmt_cfg = {
+        .clk_src        = RMT_CLK_SRC_DEFAULT,
+        .resolution_hz  = 10 * 1000 * 1000,  // 10MHz is typical
+        .mem_block_symbols = 0,              // 0 to use default
+        .flags.with_dma  = false,            // DMA optional
+    };
+
+    ESP_ERROR_CHECK(led_strip_new_rmt_device(&strip_config, &rmt_cfg, &led_strip));
+
+    ESP_ERROR_CHECK(led_strip_clear(led_strip));
+
+    ESP_ERROR_CHECK(led_strip_set_pixel(led_strip, 0, 255, 0, 255));
+    ESP_ERROR_CHECK(led_strip_refresh(led_strip));
+}
+
 void app_main(void)
 {
     // Used eventfds: