60 lines
1.6 KiB
Python
Executable File
60 lines
1.6 KiB
Python
Executable File
import time
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from modem import quit, Modem
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try:
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modem = Modem("/dev/ttyUSB0")
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#test that modem is there
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print "INFO: check modem's presence"
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modem.send('AT')
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if modem.wait().ret != True:
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print "ERROR: no modem?"
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quit(1)
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#first deactivate
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print "INFO: deactivate the modem"
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modem.send('AT+CFUN=0')
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if modem.wait().ret != True:
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print "ERROR: failed deactivating the modem"
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quit(1)
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#activate the modem
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print "INFO: activate the modem"
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modem.send('AT+CFUN=1')
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if modem.wait().ret != True:
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print "ERROR: failed asking modem for activation"
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quit(1)
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#wait for modem to be connected
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#timeout after one minute
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print "INFO: wait for modem to be connected (timeout: one minute)"
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start_time = time.time()
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while True:
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modem.send('AT+CGATT?')
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r = modem.wait()
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if r.ret != True:
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print "ERROR: failed checking attachment status of modem"
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quit(1)
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if "+CGATT: 1" in r.data:
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break
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if not "CGATT: 0" in r.data:
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print "ERROR: bad data when checking attachment status of modem"
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quit(1)
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time.sleep(0.1)
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if time.time() > start_time + 60:
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print "ERROR: modem not connected after one minute, close modem"
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modem.send('AT+CFUN=0')
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r = modem.wait()
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if r.ret != True:
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print "ERROR: closing modem failed"
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quit(1)
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print "INFO: modem is connected"
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except BaseException, e:
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print "ERROR: " + str(e)
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quit(1)
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quit(0)
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