Initialize ESP32-S3 smoke-test project cycling the RGB led.

src/main.c

@@ -0,0 +1,74 @@
+#include <stdint.h>
+
+#include "esp_err.h"
+#include "esp_log.h"
+#include "esp_psram.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "led_strip.h"
+#include "led_strip_rmt.h"
+
+#ifndef RGB_LED_GPIO
+#define RGB_LED_GPIO 48
+#endif
+
+#define RGB_LED_COUNT 1
+#define RGB_LED_BRIGHTNESS 32
+#define FADE_STEP_DELAY_MS 20
+
+static const char *TAG = "rgb_smoke_test";
+
+static led_strip_handle_t configure_rgb_led(void)
+{
+    const led_strip_config_t strip_config = {
+        .strip_gpio_num = RGB_LED_GPIO,
+        .max_leds = RGB_LED_COUNT,
+        .led_model = LED_MODEL_WS2812,
+        .color_component_format = LED_STRIP_COLOR_COMPONENT_FMT_GRB,
+        .flags = {
+            .invert_out = false,
+        },
+    };
+
+    const led_strip_rmt_config_t rmt_config = {
+        .clk_src = RMT_CLK_SRC_DEFAULT,
+        .resolution_hz = 10 * 1000 * 1000,
+        .mem_block_symbols = 0,
+        .flags = {
+            .with_dma = false,
+        },
+    };
+
+    led_strip_handle_t strip = NULL;
+    ESP_ERROR_CHECK(led_strip_new_rmt_device(&strip_config, &rmt_config, &strip));
+    ESP_ERROR_CHECK(led_strip_clear(strip));
+
+    return strip;
+}
+
+void app_main(void)
+{
+    ESP_LOGI(TAG, "ESP32-S3 build-chain smoke test started");
+
+    if (esp_psram_is_initialized()) {
+        ESP_LOGI(TAG, "PSRAM initialized: %u bytes", (unsigned int)esp_psram_get_size());
+    } else {
+        ESP_LOGW(TAG, "PSRAM is not initialized");
+    }
+
+    led_strip_handle_t strip = configure_rgb_led();
+    ESP_LOGI(TAG, "Sweeping the onboard RGB LED on GPIO%d", RGB_LED_GPIO);
+
+    while (true) {
+        for (uint16_t hue = 0; hue < 360; ++hue) {
+            ESP_ERROR_CHECK(led_strip_set_pixel_hsv(
+                strip,
+                0,
+                hue,
+                UINT8_MAX,
+                RGB_LED_BRIGHTNESS));
+            ESP_ERROR_CHECK(led_strip_refresh(strip));
+            vTaskDelay(pdMS_TO_TICKS(FADE_STEP_DELAY_MS));
+        }
+    }
+}