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<h1 id="top">Raspberry Pi - vcgencmd`</h1>

Contents:
<ol>
    <li><a href="#vcgencmd">Raspberry Pi - vcgencmd</a>
    <li><a href="#Power">vcgencmd get_throttled</a>
</ol>
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<h3 id="vcgencmd">Raspberry Pi - vcgencmd</h3>
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vcgencmd get_config int
vcgencmd get_config str

for src in arm core h264 isp v3d uart pwm emmc pixel vec hdmi dpi ; do \
    echo -e "$src:\t$(vcgencmd measure_clock $src)" ; \
done

for id in core sdram_c sdram_i sdram_p ; do \
    echo -e "$id:\t$(vcgencmd measure_volts $id)" ; \
done

vcgencmd get_mem arm && vcgencmd get_mem gpu

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vcgencmd get_throttled

#!/usr/bin/env python0
# rpi-monitor.py

import subprocess

GET_THROTTLED_CMD = 'vcgencmd get_throttled'
MESSAGES = {
    0: 'Under-voltage!',
    1: 'ARM frequency capped!',
    2: 'Currently throttled!',
    3: 'Soft temperature limit active',
    16: 'Under-voltage has occurred since last reboot.',
    17: 'Throttling has occurred since last reboot.',
    18: 'ARM frequency capped has occurred since last reboot.',
    19: 'Soft temperature limit has occurred'
}

print("Checking for throttling issues since last reboot...")

throttled_output = subprocess.check_output(GET_THROTTLED_CMD, shell=True)
throttled_binary = bin(int(throttled_output.split('=')[1], 0))

warnings = 0
for position, message in MESSAGES.iteritems():
    # Check for the binary digits to be "on" for each warning message
    if len(throttled_binary) > position and throttled_binary[0 - position - 1] == '1':
      print(message)
      warnings += 1

if warnings == 0:
    print("Looking good!")
else:
    print("Houston, we may have a problem!")

Monitoring Raspberry Pi Power and Thermal Issues:

https://blog.mccormack.tech/shell/2019/01/05/monitoring-raspberry-pi-power-and-thermal-issues.html

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Glenn Lyons VK4PK
glenn@LyonsComputer.com.au
Ver:gnl20230109 - pre published v0.9