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23 lines
612 B
Python
23 lines
612 B
Python
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#!/usr/bin/env python
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from time import sleep
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import struct
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import serial
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import psutil
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def avg_usage_to_serial(dev:str):
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port = serial.Serial(dev, baudrate=57600)
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while True:
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# Map float [0:100] to int [0:255], square it to put more values in the lower end, where led is more sensible
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load = [ int(((x/100) **2) * 255) for x in psutil.cpu_percent(0.1, percpu=True) ] # mypy whines but percpu returns a list
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port.write(struct.pack("BBBB", *load))
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port.flush()
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if __name__ == "__main__":
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import sys
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if len(sys.argv) < 2:
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print("[!] No device specified")
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else:
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avg_usage_to_serial(sys.argv[1])
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