完善V1.4踢乒乓球版本

v1.4 摄像头提乒乓球方案/maixcam/config.py

@@ -0,0 +1,48 @@
+# ------------------------------
+# LED配置
+# ------------------------------
+
+from maix import camera, display, image, nn, app, sys
+from maix import uart, pinmap, time, err, gpio
+import traceback
+
+LED_PIN_NAME = "A14"
+LED_GPIO_NAME = "GPIOA14"
+BLINK_INTERVAL = 500  # LED闪烁间隔(ms)
+
+
+# ------------------------------
+# 全局业务状态变量
+# ------------------------------
+led = None                       # LED实例
+serial_dev = None                # 舵机串口全局变量
+previous_millis = 0              # LED闪烁计时
+
+# ------------------------------
+# LED控制
+# ------------------------------
+def init_led():
+    """初始化LED引脚"""
+    global led
+    try:
+        err.check_raise(
+            pinmap.set_pin_function(LED_PIN_NAME, LED_GPIO_NAME),
+            f"设置LED引脚{LED_PIN_NAME}功能失败"
+        )
+        led = gpio.GPIO(LED_GPIO_NAME, gpio.Mode.OUT)
+        led.value(0)  # 初始熄灭
+        print(f"LED初始化完成：引脚{LED_PIN_NAME}（{LED_GPIO_NAME}）")
+    except Exception as e:
+        print(f"LED初始化失败: {e}")
+        led = None
+
+def update_led():
+    """更新LED状态：改为固定闪烁模式"""
+    global previous_millis
+    if led is None:
+        return
+    
+    current_millis = time.time_ms()
+    if current_millis - previous_millis >= BLINK_INTERVAL:
+        previous_millis = current_millis
+        led.toggle()