Max Gramser
20 lines
698 B
Python
20 lines
698 B
Python
"""Capture ESP32 boot/runtime diagnostics. Requires pyserial (in ESPHome's venv)."""
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import argparse
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import time
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import serial
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parser = argparse.ArgumentParser()
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parser.add_argument('--port', default='/dev/cu.usbserial-130')
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parser.add_argument('--seconds', type=int, default=90)
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parser.add_argument('--reset', action='store_true')
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args = parser.parse_args()
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with serial.Serial(args.port, 115200, timeout=0.2) as port:
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if args.reset:
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port.dtr = False
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port.rts = True
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time.sleep(0.1)
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port.rts = False
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end = time.monotonic() + args.seconds
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while time.monotonic() < end:
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print(port.read(4096).decode('utf-8', errors='replace'), end='', flush=True)
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