Fix flipper zero

can_sniffer/src/flipper/pages/can_stats.py

@@ -29,6 +29,8 @@ class CANStatsPage(InfoPage):
 
     def get_lines(self) -> list[str]:
         """Get statistics lines for display."""
+        # Force refresh to get fresh data
+        self._provider.refresh()
         data = self._provider.get_data()
 
         lines = [

can_sniffer/src/flipper/pages/system_info.py

@@ -29,10 +29,12 @@ class SystemInfoPage(InfoPage):
 
     def get_lines(self) -> list[str]:
         """Get system info lines for display."""
+        # Force refresh to get fresh data
+        self._provider.refresh()
         data = self._provider.get_data()
 
         lines = [
-            f"CPU Temp: {data.cpu_temp:.1f}C {self._get_temp_indicator(data.cpu_temp)}",
+            f"CPU: {data.cpu_temp:.1f}C {self._get_temp_indicator(data.cpu_temp)}",
             f"Power: {data.power_watts:.2f}W",
         ]
 

can_sniffer/src/flipper/pages/ups_status.py

@@ -35,6 +35,8 @@ class UPSStatusPage(InfoPage):
                 self._provider.get_last_error() or "Check I2C connection"
             ]
 
+        # Force refresh to get fresh data
+        self._provider.refresh()
         data = self._provider.get_data()
 
         # Battery bar visualization

can_sniffer/src/flipper/providers/system_provider.py

@@ -12,6 +12,9 @@ from dataclasses import dataclass
 from pathlib import Path
 
 from flipper.providers.base import BaseProvider
+from logger import get_logger
+
+logger = get_logger(__name__)
 
 
 @dataclass
@@ -50,16 +53,31 @@ class SystemProvider(BaseProvider):
             Float value or None on error
         """
         try:
-            output = subprocess.check_output(args).decode("utf-8")
+            output = subprocess.check_output(args, stderr=subprocess.DEVNULL).decode("utf-8")
             value_str = output.split("=")[1].strip().rstrip(strip_chars)
             return float(value_str)
-        except Exception:
+        except Exception as e:
+            logger.debug(f"Failed to read metric {args}: {e}")
             return None
 
     def _read_cpu_temp(self) -> float:
         """Read CPU temperature in Celsius."""
+        # Try vcgencmd first
         result = self._read_metric(["vcgencmd", "measure_temp"], "'C")
-        return result if result is not None else 0.0
+        if result is not None:
+            return result
+
+        # Fallback to sysfs thermal zone
+        try:
+            thermal_path = Path("/sys/class/thermal/thermal_zone0/temp")
+            if thermal_path.exists():
+                with open(thermal_path, "r") as f:
+                    temp_millicelsius = int(f.read().strip())
+                    return temp_millicelsius / 1000.0
+        except Exception as e:
+            logger.debug(f"Failed to read sysfs temp: {e}")
+
+        return 0.0
 
     def _read_cpu_volts(self) -> float:
         """Read CPU core voltage."""
@@ -149,19 +167,32 @@ class SystemProvider(BaseProvider):
     def refresh(self) -> bool:
         """Refresh system metrics."""
         try:
+            cpu_temp = self._read_cpu_temp()
+            cpu_volts = self._read_cpu_volts()
+            cpu_amps = self._read_cpu_amps()
+            power_watts = self._read_power_watts()
+            fan_rpm = self._read_fan_rpm()
+            input_voltage = self._read_input_voltage()
+
             self._data = SystemData(
-                cpu_temp=self._read_cpu_temp(),
-                cpu_volts=self._read_cpu_volts(),
-                cpu_amps=self._read_cpu_amps(),
-                power_watts=self._read_power_watts(),
-                fan_rpm=self._read_fan_rpm(),
-                input_voltage=self._read_input_voltage()
+                cpu_temp=cpu_temp,
+                cpu_volts=cpu_volts,
+                cpu_amps=cpu_amps,
+                power_watts=power_watts,
+                fan_rpm=fan_rpm,
+                input_voltage=input_voltage
+            )
+
+            logger.debug(
+                f"System metrics: temp={cpu_temp}, power={power_watts}W, "
+                f"fan={fan_rpm}, input={input_voltage}V"
             )
 
             self._set_cached("data", self._data)
             return True
 
         except Exception as e:
+            logger.error(f"Failed to refresh system metrics: {e}")
             self._last_error = str(e)
             return False
 

can_sniffer/src/flipper/providers/ups_provider.py

@@ -10,6 +10,9 @@ from typing import Optional, Tuple
 from dataclasses import dataclass
 
 from flipper.providers.base import BaseProvider
+from logger import get_logger
+
+logger = get_logger(__name__)
 
 
 @dataclass