nagios-plugins/check_raspi_voltage

#!/bin/python3
#
import argparse
import nagios
import subprocess


if __name__ == "__main__":
    throttled = subprocess.check_output(['vcgencmd', 'get_throttled']).decode('utf-8')
    try:
        tval = throttled[throttled.index('=')+1:]
        tval = int(tval, 16)
    except ValueError:
        tval = None
    #
    n = nagios.Nagios()
    #
    if tval is None:
        status = n.UNKNOWN
    elif tval & 0x4000 != 0:
        status = n.ERROR
    elif tval != 0:
        status = n.WARNING
    else:
        status = n.OK
    #
    n.exit(status, f"Overtemperature state ({throttled})")