update

RTC/set_with_browserTime.py

@@ -0,0 +1,47 @@
+"""
+Script to set the RTC using the browser time.
+
+/usr/bin/python3 /var/www/nebuleair_pro_4g/RTC/set_with_browserTime.py '$rtc_time'
+
+"""
+
+import sys
+from datetime import datetime
+import smbus2
+
+# DS3231 I2C address
+DS3231_ADDR = 0x68
+REG_TIME = 0x00
+
+def dec_to_bcd(dec):
+    """Convert decimal to BCD."""
+    return (dec // 10 * 16) + (dec % 10)
+
+def set_rtc(bus, year, month, day, hour, minute, second):
+    """Set the RTC time."""
+    second_bcd = dec_to_bcd(second)
+    minute_bcd = dec_to_bcd(minute)
+    hour_bcd = dec_to_bcd(hour)
+    day_bcd = dec_to_bcd(day)
+    month_bcd = dec_to_bcd(month)
+    year_bcd = dec_to_bcd(year - 2000)  # RTC stores years since 2000
+
+    bus.write_i2c_block_data(DS3231_ADDR, REG_TIME, [
+        second_bcd, minute_bcd, hour_bcd, 0x01, day_bcd, month_bcd, year_bcd
+    ])
+
+def main():
+    if len(sys.argv) != 2:
+        print("Usage: python3 set_rtc.py 'YYYY-MM-DD HH:MM:SS'")
+        sys.exit(1)
+
+    rtc_time_str = sys.argv[1]
+    rtc_time = datetime.strptime(rtc_time_str, '%Y-%m-%d %H:%M:%S')
+
+    bus = smbus2.SMBus(1)
+    set_rtc(bus, rtc_time.year, rtc_time.month, rtc_time.day,
+            rtc_time.hour, rtc_time.minute, rtc_time.second)
+    print(f"RTC updated to: {rtc_time}")
+
+if __name__ == "__main__":
+    main()