feat: add config view for lvgl.

Signed-off-by: Bo <boironic@gmail.com>

main/imu/imu_manager.c

@@ -0,0 +1,55 @@
+#include "imu/imu_manager.h"
+
+#include <math.h>
+#include "esp_log.h"
+#include "esp_timer.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "imu/I2C_Driver.h"
+#include "imu/QMI8658.h"
+
+static const char *TAG = "imu";
+
+static imu_shake_cb_t s_shake_cb = NULL;
+static int64_t s_last_shake_us = 0;
+
+static void imu_task(void *arg)
+{
+    (void)arg;
+    const float threshold_g = 1.6f;
+    const int64_t min_interval_us = 800000;
+
+    while (1) {
+        QMI8658_Loop();
+        float ax = Accel.x;
+        float ay = Accel.y;
+        float az = Accel.z;
+        float mag = sqrtf(ax * ax + ay * ay + az * az);
+        float delta = fabsf(mag - 1.0f);
+
+        if (delta > threshold_g) {
+            int64_t now = esp_timer_get_time();
+            if (now - s_last_shake_us > min_interval_us) {
+                s_last_shake_us = now;
+                ESP_LOGI(TAG, "Shake detected (delta=%.2f)", delta);
+                if (s_shake_cb) {
+                    s_shake_cb();
+                }
+            }
+        }
+
+        vTaskDelay(pdMS_TO_TICKS(50));
+    }
+}
+
+void imu_manager_init(void)
+{
+    I2C_Init();
+    QMI8658_Init();
+    xTaskCreatePinnedToCore(imu_task, "imu_task", 4096, NULL, 4, NULL, 0);
+}
+
+void imu_manager_set_shake_callback(imu_shake_cb_t cb)
+{
+    s_shake_cb = cb;
+}