two

hardware.py

@@ -5,6 +5,7 @@
 提供硬件对象的统一管理和访问
 """
 from maix import time
+import _thread
 import config
 from at_client import ATClient
 
@@ -28,6 +29,7 @@ class HardwareManager:
         self._bus = None                 # I2C总线
         self._adc_obj = None             # ADC对象
         self._at_client = None            # AT客户端
+        self._status_led_monitor_started = False
 
         self._last_active_time = 0       # 用于记录用户的最后一次活跃的时间
         self._stop_timer = False         # 用于停止定时器的标志
@@ -104,11 +106,87 @@ class HardwareManager:
             # 物理引脚是 A24，对应 GPIO 功能是 GPIOA24
             # 注意：这里需要先在 config.PIN_MAPPINGS 中配置好 "A24": "GPIOA24"
             from maix import gpio
-            # 输出高电平关闭
+            # 一代电源板关机信号为高电平
             gpio.GPIO("GPIOA24", gpio.Mode.OUT).value(1)
         except Exception as e:
             print(f"关机失败: {e}")
 
+    def start_status_led_monitor(self):
+        """后台更新状态灯：正常/充满绿常亮、充电绿闪烁、低电量红常亮。"""
+        if self._status_led_monitor_started:
+            return
+        self._status_led_monitor_started = True
+        _thread.start_new_thread(self._status_led_loop, ())
+
+    def _status_led_loop(self):
+        from maix import gpio
+        from power import get_bus_voltage, is_charging, voltage_to_percent
+
+        try:
+            green = None
+            if getattr(config, "STATUS_LED_GREEN_ENABLED", True):
+                green = gpio.GPIO(config.STATUS_LED_GREEN_GPIO, gpio.Mode.OUT)
+            red = None
+            if getattr(config, "STATUS_LED_RED_ENABLED", True):
+                red = gpio.GPIO(config.STATUS_LED_RED_GPIO, gpio.Mode.OUT)
+            active = int(config.STATUS_LED_ACTIVE_LEVEL)
+            inactive = 0 if active else 1
+            if green is not None:
+                green.value(inactive)
+            if red is not None:
+                red.value(inactive)
+            last_state = None
+            blink_on = False
+            blink_period = max(100, int(config.STATUS_LED_CHARGING_BLINK_MS))
+            poll_ms = max(100, int(config.STATUS_LED_POLL_MS))
+            tick_ms = min(blink_period, poll_ms)
+            sensor_elapsed = poll_ms
+            blink_elapsed = blink_period
+            state = "normal"
+            percent = None
+            charging = False
+
+            while self._status_led_monitor_started:
+                if sensor_elapsed >= poll_ms:
+                    voltage = get_bus_voltage()
+                    percent = voltage_to_percent(voltage) if voltage > 0 else None
+                    charging = is_charging()
+                    low = percent is not None and percent <= int(config.STATUS_LED_LOW_BATTERY_PERCENT)
+                    full = percent is not None and percent >= int(config.STATUS_LED_FULL_BATTERY_PERCENT)
+                    if charging:
+                        state = "full" if full else "charging"
+                    else:
+                        state = "low" if low else "normal"
+                    sensor_elapsed = 0
+
+                if state == "low":
+                    if green is not None:
+                        green.value(inactive)
+                    if red is not None:
+                        red.value(active)
+                elif state == "charging":
+                    if blink_elapsed >= blink_period:
+                        blink_on = not blink_on
+                        blink_elapsed = 0
+                    if green is not None:
+                        green.value(active if blink_on else inactive)
+                    if red is not None:
+                        red.value(inactive)
+                else:  # normal or full
+                    if green is not None:
+                        green.value(active)
+                    if red is not None:
+                        red.value(inactive)
+                if state != last_state:
+                    print(f"[STATUS_LED] state={state} percent={percent} charging={charging}")
+                    last_state = state
+                time.sleep_ms(tick_ms)
+                sensor_elapsed += tick_ms
+                blink_elapsed += tick_ms
+        except Exception as e:
+            self._status_led_monitor_started = False
+            print(f"[STATUS_LED] monitor failed: {e}")
+
     def start_idle_timer(self):
         self._stop_timer = False
         self._last_active_time = time.time()