add system temperature measurement

src/auracast/server/multicast_frontend.py

@@ -8,6 +8,8 @@ import requests
 from dotenv import load_dotenv
 import streamlit as st
 
+from auracast.utils.read_temp import read_case_temp, read_cpu_temp
+
 from auracast import auracast_config
 from auracast.utils.frontend_auth import (
     is_pw_disabled,
@@ -868,6 +870,20 @@ if is_started or is_stopped:
 ############################
 with st.expander("System control", expanded=False):
     
+    st.subheader("System temperatures")
+    temp_col1, temp_col2, temp_col3 = st.columns([1, 1, 1])
+    with temp_col1:
+        refresh_temps = st.button("Refresh")
+    try:
+        case_temp = read_case_temp()
+        cpu_temp = read_cpu_temp()
+        with temp_col2:
+            st.write(f"CPU: {cpu_temp} °C")
+        with temp_col3:
+            st.write(f"Case: {case_temp} °C")
+    except Exception as e:
+        st.warning(f"Could not read temperatures: {e}")
+
     st.subheader("Change password")
     if is_pw_disabled():
         st.info("Frontend password protection is disabled via DISABLE_FRONTEND_PW.")

src/auracast/utils/read_temp.py

@@ -0,0 +1,18 @@
+from smbus2 import SMBus
+
+def read_case_temp():
+    addr = 0x48  # change if your scan shows different
+    with SMBus(1) as bus:
+        msb, lsb = bus.read_i2c_block_data(addr, 0x00, 2)
+    raw = ((msb << 8) | lsb) >> 4
+    if raw & 0x800:  # sign bit for 12-bit
+        raw -= 1 << 12
+    return round(raw * 0.0625, 2)
+
+def read_cpu_temp():
+    with open("/sys/class/thermal/thermal_zone0/temp", "r") as f:
+        return round(int(f.read()) / 1000, 2)
+
+if __name__ == "__main__":
+    print("Case temperature: ", read_case_temp(), "°C")
+    print("CPU temperature: ", read_cpu_temp(), "°C")

src/scripts/read_case_temp.py

@@ -1,8 +0,0 @@
-from smbus2 import SMBus
-addr = 0x48  # change if your scan shows different
-with SMBus(1) as bus:
-    msb, lsb = bus.read_i2c_block_data(addr, 0x00, 2)
-raw = ((msb << 8) | lsb) >> 4
-if raw & 0x800:  # sign bit for 12-bit
-    raw -= 1 << 12
-print(f"{raw * 0.0625:.2f} °C")