def __init__(self, device_number=0, config=0):
"""
Connect to device with optional configuration.
It connects to device with device_number as listed by the enumerate_devices() function of this module.
Note that the default value of 0 will simply connect to the first device found.
The possible configurations are also returned by enumerate_devices(). Note that enumerate devices is run at time
of module import and stored in the variable devices. Note that the information returned by enumerate_devices()
(or stored in the variable devices) can be diplayed in more readable form with the function print_device_list()
of this module.
:param device_number: the device number (default: 0)
:type device_number: int
:param config: configuration number (default: 0)
:type config: int
"""
self.logger = logging.getLogger(__name__)
super().__init__(device_number, config)
self.AnalogIn = dwf.DwfAnalogIn(self)
self.AnalogOut = dwf.DwfAnalogOut(self)
self.DigitalIn = dwf.DwfDigitalIn(self)
self.DigitalOut = dwf.DwfDigitalOut(self)
# Not sure yet what these do:
self.AnalogIO = dwf.DwfAnalogIO(self)
self.DigitalIO = dwf.DwfDigitalIO(self)
# create short name references
self.ai = self.AnalogIn
self.ao = self.AnalogOut
self.di = self.DigitalIn
self.do = self.DigitalOut
self.basic_analog_return_std = False # will be overwritten by preset_basic_analog()
self._read_timeout = 1 # will be overwritten by preset_basic_analog()
self._last_ao0 = 0 # will be overwritten by write_analog()
self._last_ao1 = 0 # will be overwritten by write_analog()
self._time_stabilized = time.time(
) # will be overwritten by write_analog()
self.preset_basic_analog()
self.logger.debug('DfwController object created')
Original Author: Digilent, Inc.
Original Revision: 10/17/2013
Requires:
Python 2.7, 3.3 or later
"""
import dwf
import time
#print DWF version
print("DWF Version: " + dwf.FDwfGetVersion())
#open device
print("Opening first device")
dwf_aio = dwf.DwfAnalogIO()
print("Device USB supply voltage, current and device temperature:")
#monitor voltage, current, temperature
#60 times, once per second
for i in range(60):
# wait between readings; the update rate is approximately 1Hz
time.sleep(1)
# fetch analog IO status from device
dwf_aio.status()
# get system monitor readings
deviceVoltage = dwf_aio.channelNodeStatus(2, 0)
deviceCurrent = dwf_aio.channelNodeStatus(2, 1)
deviceTemperature = dwf_aio.channelNodeStatus(2, 2)
print("%.4f V\t%.4f A\t%.4fdegC" % (
deviceVoltage, deviceCurrent, deviceTemperature))