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https://github.com/JonasunderscoreJones/PI-server-rack.git
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Preparing for release v0.1
Updated Circuit image renamed directories for better understanding fixed bugs in pi-slave/main.py fixed bugs in pi-master/main.py polished Readme.md
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Jonas_Jones
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5 changed files with 339 additions and 223 deletions
281
pi-master/main.py
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281
pi-master/main.py
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from http import server
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import RPi.GPIO as GPIO
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import subprocess, os, time, psutil
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launch_time = time.time()
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# Wether or not to print system essential stats into the console (This can have a small to medium performance impact.)
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print_stats = True
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# Wehter or not to ignore the slave PI. This can be useful if no second PI is connected.
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ignore_slave = True
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# Starting Messages
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print("Starting PI-MC-WATCHER v0.0.1 for RPi")
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print("Processing first loop. Each loop takes 5 seconds...")
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print("\n")
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if print_stats:
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print("The system essential stats will be printed into the console. (This can be disabled at line 8 in the program file)")
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else:
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print("The system essential stats will NOT be printed into the console. (This can be enabled at line 8 in the program file)")
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print("\n")
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if ignore_slave:
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print("Slave will be ignored. (This can be configured at line 10 in the program file)")
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else:
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print("Slave will NOT be ignored. (This can be configured at line 10 in the program file)")
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# Program Delay to allow reading the above printed messages
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time.sleep(5)
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print("\nStarting process MAIN")
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# GPIO setup
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GPIO.setmode(GPIO.BCM)
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GPIO.setwarnings(False)
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# Powering Status Pin to indicate that control program is up
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GPIO.setup(4, GPIO.OUT)
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GPIO.output(4, True)
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# setting up communication pins for binary fanmode transmission
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GPIO.setup(17, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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GPIO.setup(18, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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# setting up control pin for fancontrol
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GPIO.setup(244, GPIO.OUT)
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# setting up power pin for second fancontrol
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GPIO.setup(25, GPIO.OUT)
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# define default variables -> fan speed will be at max. if someting goes wrong with getting cpu temps
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global thermal, fanmode, slave_fanmode, slave_thermal, i, file, cpu_usage, cpu_freq, cpu_up, total_ram, ram_usage, ram_free, ram_percent, swap_percent, disk_percent, mc_motd, mc_version, mc_players_max, mc_players_on, mc_version_brand, mc_plugins, mc_player_list
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thermal = -99
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fanmode = 100
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i = 0
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file_path = "/home/testuser/output.txt"
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file = open(file_path, 'w')
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file.close()
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cpu_usage = 0
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cpu_freq = 0
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cpu_up = 0
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total_ram = 0
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ram_usage = 0
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ram_free = 0
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ram_percent = 0
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swap_percent = 0
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disk_percent = 0
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# check mc server status too. Set to False to disable Minecraft server module
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check_mcserver = True
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mc_ip = "127.0.0.1"
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mc_port = "25565"
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mc_motd = "-"
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mc_version = 0
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mc_players_max = 0
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mc_players_on = 0
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mc_version_brand = "-"
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mc_plugins = []
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mc_player_list = []
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# function to get cpu temperature on linux and macOS and decide on fan speed.
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def temp(thermal, fanmode):
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thermal = int(round(float(subprocess.check_output("cat /sys/class/thermal/thermal_zone0/temp", shell=True).rstrip())/1000,2))
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thermal = int(thermal)
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if thermal <= 20:
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fanmode = 0
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elif 20 < thermal <= 35:
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fanmode = 25
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elif 35 < thermal <= 50:
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fanmode = 50
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elif 50 < thermal <= 65:
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fanmode = 75
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elif 65 < thermal:
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fanmode = 100
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return thermal, fanmode
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# function to round values
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def display(val):
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return round(float(val),2)
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# function to get system informations
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def sys_monitor(cpu_usage, cpu_freq, cpu_up, total_ram, ram_usage, ram_free, ram_percent, swap_percent, disk_percent):
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#cpu_usage = str(round(float(os.popen('''grep 'cpu ' /proc/stat | awk '{usage=($2+$4)*100/($2+$4+$5)} END {print usage }' ''').readline()),2))
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cpu_usage = psutil.cpu_percent(interval=None)
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cpu_freq = psutil.cpu_freq(percpu=False)
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cpu_freq = cpu_freq.current
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cpu_up = psutil.cpu_times()
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cpu_up = cpu_up.user
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ram = psutil.virtual_memory()
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#total_ram = str(round(display(subprocess.check_output("free | awk 'FNR == 2 {print $2/1000000}'", shell=True))))
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total_ram = ram.total
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#ram_usage = int(subprocess.check_output("free | awk 'FNR == 2 {print $3/($3+$4)*100}'", shell=True))
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ram_usage = ram.used
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#ram_free = str(100 - display(ram_usage))
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ram_free = ram.free
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ram_percent = ram.percent
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swap = psutil.swap_memory()
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swap_percent = swap.percent
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disk = psutil.disk_usage('/')
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disk_percent = disk.percent
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return cpu_usage, cpu_freq, cpu_up, total_ram, ram_usage, ram_free, ram_percent, swap_percent, disk_percent
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# function to get server status if enabled
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def mcserver(mc_motd, mc_version, mc_players_max, mc_players_on, mc_version_brand, mc_plugins, mc_player_list):
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if check_mcserver:
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# importing module mcstatus --> must be installed for this in order to work
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from mcstatus import MinecraftServer
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mcserver = MinecraftServer.lookup(mc_ip + ":" + mc_port)
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try:
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status = mcserver.status()
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mc_motd = status.description
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mc_version = status.version.name
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mc_players_max = status.players.max
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mc_players_on = status.players.online
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except:
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status = "offline"
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mc_motd = "-"
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mc_version = "-"
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mc_players_max = "-"
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mc_players_on = "-"
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# IMPORTANT!
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# for the following code to work, the query must be enabled in the server config file ('server.properties' --> 'enable-query=True').
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# If you don't have access to that file but still want your server status, you can delete the following lines that contain the 'query' argument.
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# This will provide you with a more limited status:
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# the version brand (vanilla, fabric modded, bukkit, etc.), the plugin list (if any) and the list if players won't be visible in that case
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try:
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query = mcserver.query()
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mc_version = query.software.version
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mc_version_brand = query.software.brand
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mc_plugins = query.software.plugins
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mc_player_list = query.players.names
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except:
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query = "unreachable"
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mc_version = "-"
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mc_version_brand = "-"
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mc_plugins = "-"
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mc_player_list = "-"
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# if no query --> delete 'mc_version_brand', 'mc_plugins' and 'mc_player_list' from the return argument
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# the line below should then look like THIS: return mc_motd, mc_version, mc_players_max, mc_players_on
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return mc_motd, mc_version, mc_players_max, mc_players_on, mc_version_brand, mc_plugins, mc_player_list
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while True:
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start_time = time.time()
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# execute temperature function
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thermal, fanmode = temp(thermal, fanmode)
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# determine fanmode of 2nd raspberry PI and guess CPU temps
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if GPIO.input(17) == GPIO.HIGH and GPIO.input(18) == GPIO.HIGH:
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slave_fanmode = 75
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slave_thermal = "60 - 70"
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elif GPIO.input(17) == GPIO.HIGH and not GPIO.input(18) == GPIO.HIGH:
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slave_fanmode = 50
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slave_thermal = "40 - 60"
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elif not GPIO.input(17) == GPIO.HIGH and GPIO.input(18) == GPIO.HIGH:
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slave_fanmode = 25
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slave_thermal = "0 - 40"
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elif not GPIO.input(17) == GPIO.HIGH and not GPIO.input(18) == GPIO.HIGH:
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slave_fanmode = 100
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slave_thermal = "70 - 100"
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else:
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slave_fanmode = 100
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slave_thermal = "-"
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# get other system infos and Minecraft Server stats
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cpu_usage, cpu_freq, cpu_up, total_ram, ram_usage, ram_free, ram_percent, swap_percent, disk_percent = sys_monitor(cpu_usage, cpu_freq, cpu_up, total_ram, ram_usage, ram_free, ram_percent, swap_percent, disk_percent)
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mc_motd, mc_version, mc_players_max, mc_players_on, mc_version_brand, mc_plugins, mc_player_list = mcserver(mc_motd, mc_version, mc_players_max, mc_players_on, mc_version_brand, mc_plugins, mc_player_list)
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# determine the PI with higher CPU temperature
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if ignore_slave:
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fanspeed = fanmode
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else:
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if slave_fanmode > fanmode:
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fanspeed = slave_fanmode
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else:
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fanspeed = fanmode
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if fanmode < 50:
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fanspeed2 = 0
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GPIO.output(25, False)
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elif fanmode >= 50:
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fanspeed2 = 100
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GPIO.output(25, True)
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elif thermal >= 85:
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os.system("sudo poweroff")
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i = 0
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if fanmode == 100:
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GPIO.output(24, True)
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time.sleep(2)
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elif fanmode == 75:
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while i < 6:
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GPIO.output(24, True)
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time.sleep(0.3)
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GPIO.output(24, False)
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time.sleep(0.1)
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i = i + 1
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elif fanmode == 50:
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while i < 6:
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GPIO.output(24, True)
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time.sleep(0.2)
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GPIO.output(24, False)
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time.sleep(0.2)
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i = i + 1
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elif fanmode == 25:
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while i < 6:
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GPIO.output(24, True)
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time.sleep(0.1)
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GPIO.output(24, False)
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time.sleep(0.3)
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i = i + 1
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else:
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GPIO.output(24, True)
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time.sleep(2)
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# write all data to list
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system_infos = [fanmode, slave_fanmode, fanspeed, fanspeed2, thermal, slave_thermal, cpu_usage, cpu_freq, cpu_up, total_ram, ram_usage, ram_free, ram_percent, swap_percent, disk_percent, mc_motd, mc_version, mc_players_max, mc_players_on, mc_version_brand, mc_plugins, mc_player_list]
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# delete all text in file and write list to file
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file = open(file_path, 'r+')
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file.truncate(0)
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file.close()
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file = open(file_path, 'w')
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for e in system_infos:
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file.write(str(e))
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file.write(";")
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file.close()
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stop_time = time.time()
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if print_stats:
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print("---------- Uptime: " + str(cpu_up) + " ----------")
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print("Loop time:\t" + str(round(stop_time - start_time, 2)) + "\ts")
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print("CMD Uptime:\t" + str(round(stop_time - launch_time, 2)) + "\ts")
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print("CPU")
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print("\tusage:\t" + str(cpu_usage) + "\t%")
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print("\tfreq:\t" + str(cpu_freq) + "\tMHz")
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print("\ttemp:\t" + str(thermal) + "\tC")
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print("RAM")
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print("\tusage:\t" + str(ram_percent) + "\t%")
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print("\tswap :\t" + str(swap_percent) + "\t%")
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print("Disks")
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print("\tusage:\t" + str(disk_percent) + "\t%")
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print("FANMODE")
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print("\tmain:\t" + str(fanmode) + "\t%")
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print("\tslave:\t" + str(slave_fanmode) + "\t%")
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print("\tglobal:\t" + str(fanspeed) + "\t%")
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print("\t2ndary:\t" + str(fanspeed2) + "\t%")
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