from pyvirtualbench import PyVirtualBench, PyVirtualBenchException, DmmFunction, Status
from time import sleep
from msvcrt import kbhit
import winsound
import pywinusb.hid as hid # pip install pywinusb
import urllib.request
import pyglet # pip install Pyglet
import os.path
from threading import Thread
import math
# You will probably need to replace "myVirtualBench" with the name of your device.
# By default, the device name is the model number and serial number separated by a hyphen; e.g., "VB8012-309738A".
# You can see the device's name in the VirtualBench Application under File->About
virtualbench = PyVirtualBench('myVirtualBench')
selected_instrument_index = 0 # a global index to reference the currently selected instrument in the global 'instruments' array
def text_to_speech_async(mystr):
''' Converts the user input string 'mystr' into audio that is output to the computer speakers.
Note, this function is asynchronous we return while the audio is still playing.
'''
file_cache_dir = os.path.expanduser("~/Desktop/text_to_speech_cache/") # User-defined directory (change this to your liking)
if (os.path.isdir(file_cache_dir) == False):
os.makedirs(file_cache_dir)
file_path = file_cache_dir + mystr + ".mpeg"
# We only should hit the network if the audio is not in the cache
if (os.path.isfile(file_path) == False):
url = "http://translate.google.com/translate_tts?tl=en&q=" + mystr.replace(" ", "%20")
req = urllib.request.Request(url, data=None, headers={'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:35.0) Gecko/20100101 Firefox/35.0'})
response_contents = urllib.request.urlopen(req)
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
from pyvirtualbench import PyVirtualBench, PyVirtualBenchException, DmmFunction, Status
import winsound
# This examples demonstrates how to make continuity measurements using the Digital
# Multimeter (DMM) on a VirtualBench.
try:
# You will probably need to replace "myVirtualBench" with the name of your device.
# By default, the device name is the model number and serial number separated by a hyphen; e.g., "VB8012-309738A".
# You can see the device's name in the VirtualBench Application under File->About
virtualbench = PyVirtualBench('myVirtualBench')
dmm = virtualbench.acquire_digital_multimeter();
dmm.configure_measurement(DmmFunction.RESISTANCE)
is_beeping = False
print("Insert test leads into the VirtualBench device. When the test leads touch one another, you should hear a beep noise.")
while (True):
try:
if (dmm.read() < 100 and is_beeping == False): # 100 Ohlms
winsound.PlaySound('continuity_beep.wav', winsound.SND_FILENAME | winsound.SND_ASYNC | winsound.SND_LOOP)
is_beeping = True;
except PyVirtualBenchException as e:
winsound.PlaySound(None, 0) # Stops audio from playing
is_beeping = False;
if (e.status != Status.WARNING_DMM_OVERRANGE):
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
from pyvirtualbench import PyVirtualBench, PyVirtualBenchException, DmmFunction
from datetime import datetime
# This examples demonstrates how to query calibration information from a
# VirtualBench device.
try:
# You will probably need to replace "myVirtualBench" with the name of your device.
# By default, the device name is the model number and serial number separated by a hyphen; e.g., "VB8012-309738A".
# You can see the device's name in the VirtualBench Application under File->About
virtualbench = PyVirtualBench('myVirtualBench')
# Read and display calibration information.
calibration_date, recommended_calibration_interval, calibration_interval = virtualbench.get_calibration_information()
seconds_since_1970, fractional_seconds = virtualbench.convert_timestamp_to_values(calibration_date)
print("Device was last calibrated: %s UTC" % datetime.utcfromtimestamp(seconds_since_1970))
print("Recommended calibration interval: %d months, calibration interval: %d months" % (recommended_calibration_interval, calibration_interval));
adjustment_date, adjustment_temperature = virtualbench.get_mixed_signal_oscilloscope_calibration_adjustment_information();
seconds_since_1970, fractional_seconds = virtualbench.convert_timestamp_to_values(adjustment_date)
print("MSO was last adjusted: %s UTC" % datetime.utcfromtimestamp(seconds_since_1970))
print("Temperature was: %f" % adjustment_temperature);
adjustment_date, adjustment_temperature = virtualbench.get_function_generator_calibration_adjustment_information()
seconds_since_1970, fractional_seconds = virtualbench.convert_timestamp_to_values(adjustment_date)
print("FGEN was last adjusted: %s UTC" % datetime.utcfromtimestamp(seconds_since_1970))
from pyvirtualbench import PyVirtualBench, PyVirtualBenchException
# This examples demonstrates how to make measurements using the Power
# Supply (PS) on a VirtualBench.
try:
# Power Supply Configuration
channel = "ps/+25V"
voltage_level = 1.0
current_limit = 0.5
# You will probably need to replace "myVirtualBench" with the name of your device.
# By default, the device name is the model number and serial number separated by a hyphen; e.g., "VB8012-309738A".
# You can see the device's name in the VirtualBench Application under File->About
virtualbench = PyVirtualBench('myVirtualBench')
ps = virtualbench.acquire_power_supply()
ps.configure_voltage_output(channel, voltage_level, current_limit)
ps.enable_all_outputs(True)
for i in range(10):
voltage_measurement, current_measurement, ps_state = ps.read_output(channel)
print("Measurement [%d]: %f V\t%f A\t(%s)" % (i, voltage_measurement, current_measurement, str(ps_state)))
ps.release()
except PyVirtualBenchException as e:
print("Error/Warning %d occurred\n%s" % (e.status, e))
finally:
virtualbench.release()
try:
a_seconds_since_1970, a_fractional_seconds = virtualbench.convert_timestamp_to_values(
a_timestamp)
b_seconds_since_1970, b_fractional_seconds = virtualbench.convert_timestamp_to_values(
b_timestamp)
return (a_seconds_since_1970 - b_seconds_since_1970
) + a_fractional_seconds - b_fractional_seconds
except PyVirtualBenchException as e:
return 0.0
try:
# You will probably need to replace "myVirtualBench" with the name of your device.
# By default, the device name is the model number and serial number separated by a hyphen; e.g., "VB8012-309738A".
# You can see the device's name in the VirtualBench Application under File->About
virtualbench = PyVirtualBench('myVirtualBench')
mso = virtualbench.acquire_mixed_signal_oscilloscope()
# Configure the acquisition using auto setup
mso.auto_setup()
# Query the configuration that was chosen to properly interpret the data.
sample_rate, acquisition_time, pretrigger_time, sampling_mode = mso.query_timing(
)
channels = mso.query_enabled_analog_channels()
channels_enabled, number_of_channels = virtualbench.collapse_channel_string(
channels)
# Start the acquisition. Auto triggering is enabled to catch a misconfigured trigger condition.
mso.run()
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
from pyvirtualbench import PyVirtualBench, PyVirtualBenchException, DmmFunction
from datetime import datetime
# This examples demonstrates how to query calibration information from a
# VirtualBench device.
try:
# You will probably need to replace "myVirtualBench" with the name of your device.
# By default, the device name is the model number and serial number separated by a hyphen; e.g., "VB8012-309738A".
# You can see the device's name in the VirtualBench Application under File->About
virtualbench = PyVirtualBench('myVirtualBench')
# Read and display calibration information.
calibration_date, recommended_calibration_interval, calibration_interval = virtualbench.get_calibration_information(
)
seconds_since_1970, fractional_seconds = virtualbench.convert_timestamp_to_values(
calibration_date)
print("Device was last calibrated: %s UTC" %
datetime.utcfromtimestamp(seconds_since_1970))
print(
"Recommended calibration interval: %d months, calibration interval: %d months"
% (recommended_calibration_interval, calibration_interval))
adjustment_date, adjustment_temperature = virtualbench.get_mixed_signal_oscilloscope_calibration_adjustment_information(
)
seconds_since_1970, fractional_seconds = virtualbench.convert_timestamp_to_values(
# Channel Configuration
clock_rate = I2cClockRate.ONE_HUNDRED_KHZ # 100kHz
# You will probably need to replace "0x50" address with the address for your
# attached chip. You can find the address by looking at the datasheet for
# your attached chip.
address = 0x50
address_size = I2cAddressSize.SEVEN_BITS
enable_pullups = False
# Data
data_to_write = [ 0, 1, 2, 3, 4, 5, 6, 7 ]
data_read_size = len(data_to_write)
timeout = 10.0
virtualbench = PyVirtualBench()
i2c = virtualbench.acquire_inter_integrated_circuit(bus)
i2c.configure_bus(clock_rate, address, address_size, enable_pullups)
# Write and read from the bus.
for i in range(10):
data_read, number_of_bytes_written = i2c.write_read(data_to_write, timeout, data_read_size)
print("Iteration %d:" % i)
print("Wrote %d bytes" % number_of_bytes_written)
for i in range(number_of_bytes_written): print("0x%02x" % data_to_write[i])
print("Read %d bytes" % len(data_read))
for i in range(len(data_read)): print("0x%02x" % data_read[i])
from pyvirtualbench import PyVirtualBench, PyVirtualBenchException, Waveform
# This examples demonstrates how to configure and generate a standard
# waveform from the Function Generator (FGEN) on a VirtualBench.
try:
# Waveform Configuration
waveform_function = Waveform.SQUARE
amplitude = 10.0 # 10V
dc_offset = 0.0 # 0V
frequency = 500000.0 # 500kHz
duty_cycle = 50.0 # 50% (Used for Square and Triangle waveforms)
# You will probably need to replace "myVirtualBench" with the name of your device.
# By default, the device name is the model number and serial number separated by a hyphen; e.g., "VB8012-309738A".
# You can see the device's name in the VirtualBench Application under File->About
virtualbench = PyVirtualBench('myVirtualBench')
fgen = virtualbench.acquire_function_generator()
fgen.configure_standard_waveform(waveform_function, amplitude, dc_offset,
frequency, duty_cycle)
# Start driving the signal. The waveform will continue until Stop is called, even if you close the session.
fgen.run()
fgen.release()
except PyVirtualBenchException as e:
print("Error/Warning %d occurred\n%s" % (e.status, e))
finally:
virtualbench.release()
# MISO (Master In Slave Out) input/output maps to Digital I/O Pin 2 on VirtualBench device
# CS (Chip Select) output maps to Digital I/O Pin 3 on VirtualBench device
# Channel Configuration
clock_rate = 10000000.0 # 10MHz
clock_polarity = Polarity.IDLE_LOW
clock_phase = ClockPhase.FIRST_EDGE
chip_select_polarity = Polarity.IDLE_HIGH
# Data
data_to_write = [0x82,
0] # Read WHO_AM_I 0x82 register on attached SPI device
data_read_size = len(data_to_write)
bytes_per_frame = -1
virtualbench = PyVirtualBench()
spi = virtualbench.acquire_serial_peripheral_interface(bus)
spi.configure_bus(clock_rate, clock_polarity, clock_phase,
chip_select_polarity)
# Write and read from the bus.
data_read = spi.write_read(data_to_write, bytes_per_frame, data_read_size)
print("Received %d bytes:" % len(data_read))
for i in range(len(data_read)):
print("%d (0x%02x) = %d (0x%02x)" % (i, i, data_read[i], data_read[i]))
spi.release()
except PyVirtualBenchException as e:
print("Error/Warning %d occurred\n%s" % (e.status, e))
# By default, the device name is the model number and serial number separated by a hyphen; e.g., "VB8012-309738A".
# You can see the device's name in the VirtualBench Application under File->About
bus = "myVirtualBench/i2c/0"
# Channel Configuration
clock_rate = I2cClockRate.ONE_HUNDRED_KHZ # 100kHz
address = 0x50
address_size = I2cAddressSize.SEVEN_BITS
enable_pullups = False
# Data
data_to_write = [0, 1, 2, 3, 4, 5, 6, 7]
data_read_size = len(data_to_write)
timeout = 10.0
virtualbench = PyVirtualBench()
i2c = virtualbench.acquire_inter_integrated_circuit(bus)
i2c.configure_bus(clock_rate, address, address_size, enable_pullups)
# Write and read from the bus.
for i in range(10):
data_read = i2c.write_read(data_to_write, timeout, data_read_size)
print("Iteration %d:" % i)
print("Wrote: %s" % data_to_write)
print("Read: %s" % data_read)
i2c.release()
except PyVirtualBenchException as e:
print("Error/Warning %d occurred\n%s" % (e.status, e))
from pyvirtualbench import PyVirtualBench, PyVirtualBenchException, DmmFunction, Status
from time import sleep
from msvcrt import kbhit
import winsound
import pywinusb.hid as hid # pip install pywinusb
import urllib.request
import pyglet # pip install Pyglet
import os.path
from threading import Thread
import math
# You will probably need to replace "myVirtualBench" with the name of your device.
# By default, the device name is the model number and serial number separated by a hyphen; e.g., "VB8012-309738A".
# You can see the device's name in the VirtualBench Application under File->About
virtualbench = PyVirtualBench('myVirtualBench')
selected_instrument_index = 0 # a global index to reference the currently selected instrument in the global 'instruments' array
def text_to_speech_async(mystr):
''' Converts the user input string 'mystr' into audio that is output to the computer speakers.
Note, this function is asynchronous we return while the audio is still playing.
'''
file_cache_dir = os.path.expanduser(
"~/Desktop/text_to_speech_cache/"
) # User-defined directory (change this to your liking)
if (os.path.isdir(file_cache_dir) == False):
os.makedirs(file_cache_dir)
file_path = file_cache_dir + mystr + ".mpeg"
# We only should hit the network if the audio is not in the cache
if (os.path.isfile(file_path) == False):
# By default, the device name is the model number and serial number separated by a hyphen; e.g., "VB8012-309738A".
# You can see the device's name in the VirtualBench Application under File->About
bus = "myVirtualBench/spi/0"
# Channel Configuration
clock_rate = 10000000.0 # 10MHz
clock_polarity = Polarity.IDLE_LOW
clock_phase = ClockPhase.FIRST_EDGE
chip_select_polarity = Polarity.IDLE_HIGH
# Data
data_to_write = [ 0, 1, 2, 3, 4, 5, 6, 7 ]
data_read_size = len(data_to_write)
bytes_per_frame = -1
virtualbench = PyVirtualBench()
spi = virtualbench.acquire_serial_peripheral_interface(bus)
spi.configure_bus(clock_rate, clock_polarity, clock_phase, chip_select_polarity)
# Write and read from the bus.
for i in range(10):
data_read = spi.write_read(data_to_write, bytes_per_frame, data_read_size)
print("Iteration %d:" % i)
print("Wrote: %s" % data_to_write)
print("Read: %s" % data_read)
spi.release()
except PyVirtualBenchException as e:
print("Error/Warning %d occurred\n%s" % (e.status, e))
# THE SOFTWARE.
from pyvirtualbench import PyVirtualBench, PyVirtualBenchException
# This examples demonstrates how to generate and read static digital signals
# using the Digital (Dig) lines on a VirtualBench.
try:
# You will probably need to replace "myVirtualBench" with the name of your device.
# By default, the device name is the model number and serial number separated by a hyphen; e.g., "VB8012-309738A".
# You can see the device's name in the VirtualBench Application under File->About
channels_to_write = "myVirtualBench/dig/0:3"
channels_to_read = "myVirtualBench/dig/4:7"
data_to_write = [True, False, True, True]
virtualbench = PyVirtualBench()
dio = virtualbench.acquire_digital_input_output(channels_to_write)
for i in range(10):
dio.write(channels_to_write, data_to_write)
print("[%d] Wrote to %s: %s" % (i, channels_to_write, data_to_write))
print("[%d] Read from %s: %s" %
(i, channels_to_read, dio.read(channels_to_read)))
dio.release()
except PyVirtualBenchException as e:
print("Error/Warning %d occurred\n%s" % (e.status, e))
finally:
virtualbench.release()
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
from pyvirtualbench import PyVirtualBench, PyVirtualBenchException, DmmFunction
# This examples demonstrates how to make measurements using the Digital
# Multimeter (DMM) on a VirtualBench.
try:
# You will probably need to replace "myVirtualBench" with the name of your device.
# By default, the device name is the model number and serial number separated by a hyphen; e.g., "VB8012-309738A".
# You can see the device's name in the VirtualBench Application under File->About
virtualbench = PyVirtualBench('myVirtualBench')
dmm = virtualbench.acquire_digital_multimeter()
dmm.configure_measurement(DmmFunction.DC_VOLTS, True, 10.0)
for i in range(10):
print("Measurement %d: %f V" % (i, dmm.read()))
dmm.release()
except PyVirtualBenchException as e:
print("Error/Warning %d occurred\n%s" % (e.status, e))
finally:
virtualbench.release()
