def setup_devices():
config = None
ljm_devices = {}
config_url = SERVER_BASE_URL + CONFIG_PATH + '?rpi_mac=' + get_device_mac()
result = requests.get(config_url)
if result.status_code == 200:
config = result.json()[0]
devices = config.get('devices', [])
for device in devices:
channels = [chnl for chnl in range(device.get('num_channels', 0))]
channel_addrs = []
for channel in channels:
ain_start = device.get('starting_address', 0)
channel_addrs.append(int(ain_start + DATA_BYTE_SIZE * channel))
device_id = device.get('device_id', '')
sample_rate = device.get('sample_rate', 0)
read_rate = device.get('read_rate', 0)
try:
ljd = ljm.open(ljm.constants.dtANY, ljm.constants.ctANY,
device_id)
ljm.eStreamStart(ljd, read_rate, len(channel_addrs),
channel_addrs, sample_rate)
ljm_devices[device_id] = ljd
except:
pass
return (ljm_devices, config)
def __init__(self, device_type, connection_type, serial_number, mp_q):
self.valid = False
self.mp_q = mp_q
self.monitor_points = {
'drive_state': 0, # 0 = off, 1 = up, 2 = down
'brake': 0, # 0 = off, 1 = on
'plus_limit': 0,
'minus_limit': 0,
'ant_el': 0.0,
'foc_temp': -273.15,
'rf_a_power': -100.0,
'rf_b_power': -100.0,
'laser_a_current': 0.0,
'laser_b_current': 0.0,
'laser_a_opt_power': 0.0,
'laser_b_opt_power': 0.0,
'psu_a_volt': 0.0,
'psu_b_volt': 0.0,
'box_temp': -273.15
}
# Open a LabJack
try:
self.lj_handle = ljm.open(device_type, connection_type,
serial_number)
except ljm.LJMError:
self.valid = False
return # To be replaced with a raise exception?
self.valid = True
print("Hello from analog backend")
def new(self):
"""Initialise the device and create the handle"""
self.handle = ljm.open(ljm.constants.dtANY, ljm.constants.ctANY, "ANY")
if self.mode=="streamer":
#self.channels = ["AIN0", "AIN1", "AIN2", "AIN3"] #Scan list names to stream
numAddresses = len(self.channels)
aScanList = ljm.namesToAddresses(numAddresses, self.channels)[0]
aName_prefix=["AIN_ALL_NEGATIVE_CH","STREAM_SETTLING_US","STREAM_RESOLUTION_INDEX"]
suffixes = ["_RANGE"]
aNames = aName_prefix+[chan+s for chan in self.channels for s in suffixes]
temp_values=[[self.chan_range[chan]] for chan,a in enumerate(self.channels)]
aValues = [ljm.constants.GND, 0, self.resolution]+[item for sublist in temp_values for item in sublist]
#print aValues
#print "----------------------"
#print aNames
ljm.eWriteNames(self.handle, len(aNames), aNames, aValues)
# Configure and start stream
scanRate = ljm.eStreamStart(self.handle, self.scansPerRead, numAddresses, aScanList, self.scanRate)
elif self.mode=="single":
numAddresses = len(self.channels)
#suffixes = ["_EF_INDEX","_NEGATIVE_CH", "_RANGE", "_RESOLUTION_INDEX", "_EF_CONFIG_D", "_EF_CONFIG_E"] # conf for automatic gain/offset
suffixes = ["_NEGATIVE_CH", "_RANGE", "_RESOLUTION_INDEX"]
aNames = [chan+s for chan in self.channels for s in suffixes]
#aValues = [[1,ljm.constants.GND, self.chan_range[chan],0,self.gain[chan],self.offset[chan]] for chan,a in enumerate(self.channels)]
aValues = [[ljm.constants.GND, self.chan_range[chan],self.resolution] for chan,_ in enumerate(self.channels)]
aValues=[item for sublist in aValues for item in sublist] #flatten
#print aValues
#print "----------------------"
#print aNames
ljm.eWriteNames(self.handle, len(aNames), aNames, aValues)
else:
raise Exception("Invalid mode, please select 'single' or 'streamer'")
def __init__(self, log_msg_q, mp_q, simulate=False):
log_msg_q.put((log.INFO, MODULE, "Searching for LabJack T7's"))
# Set up arrays to hold device information for discovered LabJack devices
self.num_found = 0
self.num_ant = 0
self.num_abe = 0
self.ants = {}
self.abes = {}
self.stop_time = 0.0
self.move_time = 0.0
if simulate:
a_device_types = []
a_connection_types = []
a_serial_numbers = []
a_ip_addresses = []
self.num_found = NUM_SIM
for i in range(NUM_SIM):
a_device_types.append(ljm.constants.dtT7)
a_connection_types.append(ljm.constants.ctETHERNET)
a_serial_numbers.append("-2")
a_ip_addresses.append("192.168.1.{}".format(i))
else:
try:
(self.num_found, a_device_types, a_connection_types, a_serial_numbers, a_ip_addresses) =\
ljm.listAll(ljm.constants.dtT7, ljm.constants.ctTCP)
except ljm.LJMError as e:
log_msg_q.put(
(log.FATAL, MODULE,
"Error searching for LabJack devices. LJMError: {}".
format(e)))
raise ljm.LJMError
if self.num_found > 0:
sim_ant_num = 1
for i in range(self.num_found):
lj_handle = None
try:
lj_handle = ljm.open(a_device_types[i],
a_connection_types[i],
a_serial_numbers[i])
except ljm.LJMError:
self.num_found -= self.num_found
if self.num_found <= 0:
return
if simulate:
(lj_type, lj_location) = (ANT_TYPE, sim_ant_num)
sim_ant_num += 1
else:
(lj_type,
lj_location) = self._get_type_and_location(lj_handle)
if lj_type == ANT_TYPE:
self.ants[lj_location] = DsaAntLabjack(
lj_handle, lj_location, log_msg_q, mp_q)
self.num_ant += 1
elif lj_type == ABE_TYPE:
self.abes[lj_location] = DsaAbeLabjack(
lj_handle, lj_location, log_msg_q, mp_q)
self.num_abe += 1
def __init__(self):
# Open first found LabJack
self.handle = ljm.open(ljm.constants.dtANY, ljm.constants.ctANY, "ANY")
#self.handle = ljm.openS("ANY", "ANY", "ANY")
self.info = ljm.getHandleInfo(self.handle)
print("Opened a LabJack with Device type: %i, Connection type: %i,\n" \
"Serial number: %i, IP address: %s, Port: %i,\nMax bytes per MB: %i" % \
(self.info[0], self.info[1], self.info[2], ljm.numberToIP(self.info[3]), self.info[4], self.info[5]))
self.configure()
def openLJMDevice(deviceType, connectionType, identifier):
try:
handle = ljm.open(deviceType, connectionType, identifier)
except ljm.LJMError:
print("Error calling ljm.open(" + "deviceType=" + str(deviceType) +
", " + "connectionType=" + str(connectionType) + ", " +
"identifier=" + identifier + ")")
raise
return handle
def open_ljm_device(device_type, connection_type, identifier):
try:
handle = ljm.open(device_type, connection_type, identifier)
except ljm.LJMError:
print(
"Error calling ljm.open(" + \
"device_type=" + str(device_type) + ", " + \
"connection_type=" + str(connection_type) + ", " + \
"identifier=" + identifier + ")"
)
raise
return handle
def openPorts():
"""Open all the ports including the labjack and the powersupplies"""
# open the powersupply serial ports
xCoil.supply.openPort()
yCoil.supply.openPort()
#zCoil.supply.openPort()
print('opened all three powersupplies')
# open the labjack serial port
handle = ljm.open(ljm.constants.dtANY, ljm.constants.ctANY, "ANY")
# print the labjack info
info = ljm.getHandleInfo(handle)
print("Opened a LabJack with Device type: %i, Connection type: %i,\n" \
"Serial number: %i, IP address: %s, Port: %i,\nMax bytes per MB: %i" % \
(info[0], info[1], info[2], ljm.numberToIP(info[3]), info[4], info[5]))
return (handle) # return the handle so e can close it later
def Init():
# Open first found LabJack
handle = ljm.open(ljm.constants.dtANY, ljm.constants.ctANY, "ANY")
#handle = ljm.openS("ANY", "ANY", "ANY")
#A2D setup
info = ljm.getHandleInfo(handle)
print("Opened a LabJack with Device type: %i, Connection type: %i,\n" \
"Serial number: %i, IP address: %s, Port: %i,\nMax bytes per MB: %i" % \
(info[0], info[1], info[2], ljm.numberToIP(info[3]), info[4], info[5]))
# Setup and call eWriteNames to configure AINs on the LabJack.
numFrames = 3
names = ["AIN_ALL_NEGATIVE_CH", "AIN_ALL_RANGE", "AIN_ALL_RESOLUTION_INDEX"]
aValues = [199, 10, 1]
ljm.eWriteNames(handle, numFrames, names, aValues)
#return handle, Info
return handle
def ld_connect(dt, ct):
"""
function used to detect LabJack device(s) using specific protocol(s)
dt: device type DEVICE and ANY allowed
ct: connection type CT values and ANY allowed
return: list of connection to devices and list of connection information in case of loosing connection for
trying to restore the connection to de device
>>> dev = ld_connect(ANY, ANY) #it will connect to any labjack devices using any protocols
>>> dev = ld_connect(DEVICE_T7, CT[3]) #it will connect to labjack t7 devices using tcp protocols
>>> dev = ld_connect(DEVICE_T7, ANY) #it will connect to labjack t7 devices using any protocols
>>> dev = ld_connect(DEVICE_T7, CT[2]) #it will connect to labjack t7 devices using only wifi
>>> dev = ld_connect(DEVICE_T7, CT[1]) #it will connect to labjack t7 devices using only ethernet
>>> dev = ld_connect(DEVICE_T7, CT[0]) #it will connect to labjack t7 devices using only usb
"""
connection_info = []
handle = []
labjack_devices = ljm.listAllS(dt, ct)
for index in range(labjack_devices[CD_INDEX]):
try:
handle.append(
ljm.open(
labjack_devices[DT_INDEX][index],
labjack_devices[CT_INDEX][index],
labjack_devices[SN_INDEX][index]
)
)
connection_info.append(
[
labjack_devices[DT_INDEX][index],
labjack_devices[CT_INDEX][index],
labjack_devices[SN_INDEX][index]
]
)
except ljm.ljm.LJMError as LjmError:
print(
LjmError._errorString + ": Unable to connect to device " + str(
[
labjack_devices[DT_INDEX][index],
labjack_devices[CT_INDEX][index],
labjack_devices[SN_INDEX][index]
]
)
)
return handle, connection_info
def labjackInitialize():
'''
All the code to initialize the connection to the labjack.
Searches for the first Labjack that is connected, initializes the connection,
and returns a handle for communication
'''
# Open first found LabJack
# Eventually we will have multiple labjacks open, so fix this
handle = ljm.open(ljm.constants.dtANY, ljm.constants.ctANY, "ANY")
info = ljm.getHandleInfo(handle)
print("\nOpened a LabJack with Device type: %i, Connection type: %i,\n" \
"Serial number: %i, IP address: %s, Port: %i,\nMax bytes per MB: %i" % \
(info[0], info[1], info[2], ljm.numberToIP(info[3]), info[4], info[5]))
return handle
def run(self):
"""
main algorithm threads used to reconnect to devices after losing it connection
"""
for i in range(self.reconnection_attempt):
time.sleep(self.second)
try:
handle = ljm.open(self.connection_info[0],
self.connection_info[1],
self.connection_info[2])
if handle > 0:
Globals.handles.append(handle)
Globals.information.append(self.connection_info)
print("\nDevice " + str(self.connection_info) +
" successfully reconnected.\n")
return 0
except ljm.ljm.LJMError as LjmError:
self.error = LjmError._errorString
print("\nUnable to reconnect to device " + str(self.connection_info) +
" Error: " + LjmError._errorString + ". Removed permanently\n")
return -1
"""
Demonstrates how to use the labjack.ljm.eReadName (LJM_eReadName) function.
"""
from labjack import ljm
# Open first found LabJack
handle = ljm.open(ljm.constants.dtANY, ljm.constants.ctANY, "ANY")
#handle = ljm.openS("ANY", "ANY", "ANY")
info = ljm.getHandleInfo(handle)
print("Opened a LabJack with Device type: %i, Connection type: %i,\n" \
"Serial number: %i, IP address: %s, Port: %i,\nMax bytes per MB: %i" % \
(info[0], info[1], info[2], ljm.numberToIP(info[3]), info[4], info[5]))
# Setup and call eReadName to read a value from the LabJack.
name = "SERIAL_NUMBER"
result = ljm.eReadName(handle, name)
print("\neReadName result: ")
print(" Name - %s, value : %f" % (name, result))
# Close handle
ljm.close(handle)
from labjack import ljm
from datetime import datetime
import timeit
import functools
def eNamesIteration(handle, numFrames, names, aWrites, aNumValues, aValues,
results):
# Function for timit.Timer. Performs a eNames call to do LabJack operations.
# Takes eNames parameters and a list for results which will be filled.
del results[:]
r = ljm.eNames(handle, numFrames, names, aWrites, aNumValues, aValues)
results.extend(r)
# Open first found LabJack
handle = ljm.open(ljm.constants.dtANY, ljm.constants.ctANY, "ANY")
#handle = ljm.openS("ANY", "ANY", "ANY")
info = ljm.getHandleInfo(handle)
print("Opened a LabJack with Device type: %i, Connection type: %i,\n" \
"Serial number: %i, IP address: %s, Port: %i,\nMax bytes per MB: %i" % \
(info[0], info[1], info[2], ljm.numberToIP(info[3]), info[4], info[5]))
numIterations = 1000 # Number of iterations to perform in the loop
# Analog input settings
numAIN = 1 # Number of analog inputs to read
rangeAIN = 10.0
resolutionAIN = 1
from labjack import ljm
import time
import sys
import numpy as np
from datetime import datetime
#from oct2py import octave
#import matplotlib.pyplot as plt
from scipy.signal import find_peaks_cwt
import scipy.fftpack as ft
import peakutils
file = open("times.txt", "w")
t0 = time.time()
#from peakdetect import peakdetect
handle = ljm.open(ljm.constants.dtANY, ljm.constants.ctETHERNET,
"192.168.254.100")
t1 = time.time()
TopenEthernet = t0 - t1
OFFSET = 0.131
MULTIPLICITY = 1400
ANS = [0, 0, 0, 0]
DIGITAL = ["FIO1", "FIO4", "FIO2", "FIO0"]
def seleccionador(x):
ljm.eWriteName(handle, DIGITAL[x], 1)
def silenciador(x, peak):
def open_handle(self): self.handle=ljm.open(ljm.constants.dtANY, ljm.constants.ctANY, "ANY")
def __init__(self, etcd_endpoint: list, sim=False):
"""Discover Model T7 LabJack devices on network and return their information
Searches on the network for any LabJack T7 devices, and queries them for their DHCP-assigned
IP address. The devices are queried for their hardware identifier (DIP switch on to the
LabJack interface board) to determine if they are for an antenna (ant) or analog back-end
box (BEB), as well as the associated number. For the antennas, this is the antenna number.
Each BEB device is associated with multiple antennas.
Args:
etcd_endpoint (:obj:'list' of 'str'): A list with the etcd IP address and port number
sim (bool): Indicates if simulated (True) or real (False) data
Raises:
ljm.LJMError: An error occurred accessing the LabJack drivers.
"""
# Get the name of this for logging purposes.
my_class = str(self.__class__)
self.class_name = (my_class[my_class.find('.') +
1:my_class.find("'>'") - 1])
# Set up logging.
self.logger = logging.getLogger(Conf.LOGGER + '.' + __name__)
# Set class name for logging.
CustomFormatter.log_msg_fmt['class'] = self.class_name
self.logger.info("Searching for LabJack T7's")
# Set up arrays to hold device information for discovered LabJack devices.
self.num_ant = 0
self.num_beb = 0
self.ants = {}
self.bebs = {}
if sim:
a_connection_types, a_device_types, a_serial_numbers = self._creat_sim_devices(
)
else:
a_device_types, a_connection_types, a_serial_numbers = self._find_devices(
)
if self.num_found > 0:
sim_ant_num = 1
sim_beb_num = 1
for i in range(self.num_found):
lj_handle = None
try:
lj_handle = ljm.open(a_device_types[i],
a_connection_types[i],
a_serial_numbers[i])
except ljm.LJMError:
self.num_found -= self.num_found
if self.num_found <= 0:
return
if sim:
if i % 2 == 0:
(lj_type, lj_location) = (Constants.ANT_TYPE,
sim_ant_num)
sim_ant_num += 1
else:
(lj_type, lj_location) = (Constants.BEB_TYPE,
sim_beb_num)
sim_beb_num += 10
else:
(lj_type,
lj_location) = self._get_type_and_location(lj_handle)
if lj_type == Constants.ANT_TYPE:
self.ants[lj_location] = DsaAntLabJack(
lj_handle, lj_location, etcd_endpoint, sim)
self.num_ant += 1
print("Antenna {} found".format(lj_location))
elif lj_type == Constants.BEB_TYPE:
self.bebs[lj_location] = DsaBebLabJack(
lj_handle, lj_location, etcd_endpoint)
self.num_beb += 1
print("Analog backend {} found".format(lj_location))
def open_handle(identifier='ANY'): """ Function used only to open handle. For better exception behavior handling. """ handle = ljm.open(ljm.constants.dtANY, ljm.constants.ctANY,identifier) return handle
#dependencies="00a"
__author__ = 'chet'
#
# $Id$
#
import gumtools as gt
import serial
from labjack import ljm
from time import sleep
ser = serial.Serial(port='COM7', baudrate=115200, timeout=1)
if not gt.login(ser):
gt.fail(ser)
#open the labjack with the specified serial # on any available connection
lj = ljm.open(ljm.constants.dtANY, ljm.constants.ctANY, "470010285")
gpios = []
#iterate over all GPIOs
for i in xrange(8):
gpios.append(True)
#just to save copiable code, loop over I/O 0 or 1
for val in xrange(2):
#VERY IMPORTANT always reset LJ to low out to avoid driving LJ and Gumstix simultaneously
DIO = "FIO%i" % i
ljm.eWriteName(lj, DIO, 0)
#configure GPIO to output
ser.write('echo out > /gpio/boardio%i/direction\r' % (i + 1))
sleep(1)
ser.write('echo %i > /gpio/boardio%i/value\r' % (val, i + 1))
sleep(1)
#read value on LJ
#dependencies="00a"
__author__ = 'chet'
#
# $Id$
#
import gumtools as gt
import serial
from labjack import ljm
from time import sleep
ser = serial.Serial(port='COM7', baudrate=115200, timeout=1)
if not gt.login(ser):
gt.fail(ser)
#open the labjack with the specified serial # on any available connection
lj = ljm.open(ljm.constants.dtANY, ljm.constants.ctANY, "470010285")
gpios = []
#iterate over all GPIOs
for i in xrange(8):
gpios.append(True)
#just to save copiable code, loop over I/O 0 or 1
for val in xrange(2):
#VERY IMPORTANT always reset LJ to low out to avoid driving LJ and Gumstix simultaneously
DIO = "FIO%i" % i
ljm.eWriteName(lj, DIO, 0)
#configure GPIO to output
ser.write('echo out > /gpio/boardio%i/direction\r' % (i+1))
sleep(1)
ser.write('echo %i > /gpio/boardio%i/value\r' % (val, i+1))
sleep(1)
#read value on LJ
