30 lines
870 B
Python
30 lines
870 B
Python
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import wiringpi
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import sys
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import argparse
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parser = argparse.ArgumentParser(description='')
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parser.add_argument("--device", type=str, default="/dev/ttyS4", help='specify the serial node')
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args = parser.parse_args()
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wiringpi.wiringPiSetup()
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serial = wiringpi.serialOpen(args.device, 115200)
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if serial < 0:
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print("Unable to open serial device: %s"% args.device)
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sys.exit(-1)
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for count in range(0, 256):
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try:
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print("\nOut: %3d:" % count, end="")
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wiringpi.serialFlush(serial)
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wiringpi.serialPutchar(serial, count)
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wiringpi.delayMicroseconds(300000)
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while wiringpi.serialDataAvail(serial):
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print(" -> %3d" % wiringpi.serialGetchar(serial), end="")
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wiringpi.serialFlush(serial)
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except KeyboardInterrupt:
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print("\nexit")
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sys.exit(0)
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wiringpi.serialClose(serial) # Pass in ID
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