36 lines
521 B
Python
36 lines
521 B
Python
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#!/usr/bin/python
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import sys
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import tty
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import serial
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import time
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ser = serial.Serial("/dev/ttyUSB0", 38400)
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voltage = 20000
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current = 0
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incdec = 0
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while 1:
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tdata = ser.read()
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time.sleep(1)
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data_left = ser.inWaiting()
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tdata += ser.read(data_left)
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out = "A%05d,12300,%05d,1,1,1B" % (voltage, current)
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print out
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ser.write(out)
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if incdec == 0:
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current = current + 1000
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else:
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current = current - 1000
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if current > 20000:
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current = 20000
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incdec = 1
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if current < 0:
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current = 0
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incdec = 0
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