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57 lines
1.5 KiB
57 lines
1.5 KiB
#!/usr/bin/env python3
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import sys
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import time
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import datetime
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import numpy as np
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from typing import List
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from common.realtime import Ratekeeper
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from common.filter_simple import FirstOrderFilter
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def read_power():
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with open("/sys/bus/i2c/devices/0-0040/hwmon/hwmon1/power1_input") as f:
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return int(f.read()) / 1e6
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def sample_power(seconds=5) -> List[float]:
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rate = 123
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rk = Ratekeeper(rate, print_delay_threshold=None)
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pwrs = []
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for _ in range(rate*seconds):
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pwrs.append(read_power())
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rk.keep_time()
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return pwrs
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def get_power(seconds=5):
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pwrs = sample_power(seconds)
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return np.mean(pwrs)
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if __name__ == "__main__":
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duration = None
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if len(sys.argv) > 1:
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duration = int(sys.argv[1])
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rate = 23
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rk = Ratekeeper(rate, print_delay_threshold=None)
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fltr = FirstOrderFilter(0, 5, 1. / rate, initialized=False)
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measurements = []
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start_time = time.monotonic()
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try:
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while duration is None or time.monotonic() - start_time < duration:
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fltr.update(read_power())
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if rk.frame % rate == 0:
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measurements.append(fltr.x)
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t = datetime.timedelta(seconds=time.monotonic() - start_time)
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avg = sum(measurements) / len(measurements)
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print(f"Now: {fltr.x:.2f} W, Avg: {avg:.2f} W over {t}")
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rk.keep_time()
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except KeyboardInterrupt:
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pass
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t = datetime.timedelta(seconds=time.monotonic() - start_time)
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avg = sum(measurements) / len(measurements)
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print(f"\nAverage power: {avg:.2f}W over {t}")
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