def __init__(self, com_port):
self.com_port = com_port
self.device = KoradSerial(com_port, True)
self.device.output.off()
channel = self.device.channels[0]
channel.voltage = 12.0
channel.current = 2.0
def load(self):
h5path = time.strftime('/Date_%Y-%m-%d/Time_%H_%M_%S').split('/')
if '/' + h5path[1] not in self.h5:
h5group = self.h5.createGroup('/', h5path[1])
h5group = self.h5.createGroup('/' + h5path[1], h5path[2])
h5table = self.h5.createTable(h5group, 'load', LoadRow)
ps = KoradSerial(DEVSERIAL)
ps.output.off()
ps.beep.off()
ch1 = ps.channels[0]
ch1.current = self.current
ch1.voltage = self.voltage
ps.output.on()
starttime = time.time()
currenttime = time.time()
while (currenttime - starttime) < self.maxtime * HOUR_TO_SEC:
time.sleep(5)
currenttime = time.time()
voltage = ch1.output_voltage
current = ch1.output_current
print time.ctime(currenttime), 'V: ', voltage, ' I: ', current
row = h5table.row
row['time'] = currenttime
row['voltage'] = voltage
row['current'] = current
row.append()
h5table.flush()
ps.output.off()
class PowerSupply():
def __init__(self, com_port):
self.com_port = com_port
self.device = KoradSerial(com_port, True)
self.device.output.off()
channel = self.device.channels[0]
channel.voltage = 12.0
channel.current = 2.0
def poweroff(self):
self.device.output.off()
def poweron(self):
self.device.output.on()
def __del__(self):
self.device.close()
def korad(ctx, port):
"""Interfacing a Korad KA3005P power supply.
If KORADPORT is in the environment, the --port option is optional:
export KORADPORT=/dev/ttyACM0
"""
try:
global korad_device
korad_device = KoradSerial(port)
except SerialException as e:
error(e)
ctx.exit(1)
ctx.call_on_close(korad_device.close)
class KoradSerialTest(TestCase):
def setUp(self):
self.device = KoradSerial('/dev/tty.usbmodemfd121', True)
self.overrideSkippedTests = False
def tearDown(self):
self.device.close()
def _pause(self, delay=1):
""" Give the power supply time to digest the commands.
:param delay: How long to pause. The default 1 second is overkill.
"""
sleep(delay)
def test_beep(self):
""" Test the BEEP command.
According to what I've read on the Internet, and confirmed by my trials, is that BEEP0 doesn't work.
Thus this test is useless.
:return:
"""
if not self.overrideSkippedTests:
return
self.device.beep.off()
status = self.device.status
self.assertEqual(OnOffState.off, status.beep)
self._pause()
self.device.beep.on()
status = self.device.status
self.assertEqual(OnOffState.on, status.beep)
def test_channel1(self):
""" Test Channel 1's functionality.
This test assumes a small load (perhaps 100 ohm) is on the power supply so a small amount of current is drawn.
"""
channel = self.device.channels[0]
# Turn off output and ensure that it's reading zeroes.
self.device.output.off()
self._pause()
self.assertEqual(0, channel.output_voltage)
self.assertEqual(0, channel.output_current)
# Set the current and voltage and ensure it's reporting back correctly.
channel.voltage = 12.34
channel.current = 1.234
self.assertAlmostEqual(12.34, channel.voltage, 2)
self.assertAlmostEqual(1.234, channel.current, 3)
# Set a different current and voltage to ensure that we're not reading old data.
channel.voltage = 3.30
channel.current = 0.123
self.assertAlmostEqual(3.30, channel.voltage, 2)
self.assertAlmostEqual(0.123, channel.current, 3)
# Turn on the output and ensure that current is flowing across the small load.
self.device.output.on()
self._pause()
self.assertAlmostEqual(3.30, channel.output_voltage, 2)
self.assertLess(0, channel.output_current)
self.device.output.off()
def test_lock(self):
""" Test the lock state.
Ha! Just kidding. This is a stub.
It appears that there is no command to alter the lock state.
While connected to a serial line and processing commands, the power supply is in a lock state.
"""
if not self.overrideSkippedTests:
return
pass
def test_memory(self):
""" Ensure that memory store/recall works.
A two-step process is required to set a memory.
* First, one must choose the memory number with a `recall()` command.
* Second, one must set the desired voltage and current limit.
* Third, one must save the memory with a `save()` command.
Recalling a memory setting simply requires calling the `recall()` command.
This goes through the test twice with different values to ensure what is read isn't old data.
"""
channel = self.device.channels[0]
m1 = self.device.memories[0]
m2 = self.device.memories[1]
m3 = self.device.memories[2]
m4 = self.device.memories[3]
# Pass one with the first set of values.
m1.recall()
channel.voltage = 1.00
channel.current = 0.100
m1.save()
m2.recall()
channel.voltage = 2.00
channel.current = 0.200
m2.save()
m3.recall()
channel.voltage = 3.00
channel.current = 0.300
m3.save()
m4.recall()
channel.voltage = 4.00
channel.current = 0.400
m4.save()
m1.recall()
self.assertAlmostEqual(1.00, channel.voltage, 2)
self.assertAlmostEqual(0.100, channel.current, 3)
m2.recall()
self.assertAlmostEqual(2.00, channel.voltage, 2)
self.assertAlmostEqual(0.200, channel.current, 3)
m3.recall()
self.assertAlmostEqual(3.00, channel.voltage, 2)
self.assertAlmostEqual(0.300, channel.current, 3)
m4.recall()
self.assertAlmostEqual(4.00, channel.voltage, 2)
self.assertAlmostEqual(0.400, channel.current, 3)
# Pass two with different values.
m1.recall()
channel.voltage = 5.00
channel.current = 0.500
m1.save()
m2.recall()
channel.voltage = 10.00
channel.current = 1.000
m2.save()
m3.recall()
channel.voltage = 15.00
channel.current = 1.500
m3.save()
m4.recall()
channel.voltage = 20.00
channel.current = 2.000
m4.save()
m1.recall()
self.assertAlmostEqual(5.00, channel.voltage, 2)
self.assertAlmostEqual(0.500, channel.current, 3)
m2.recall()
self.assertAlmostEqual(10.00, channel.voltage, 2)
self.assertAlmostEqual(1.000, channel.current, 3)
m3.recall()
self.assertAlmostEqual(15.00, channel.voltage, 2)
self.assertAlmostEqual(1.500, channel.current, 3)
m4.recall()
self.assertAlmostEqual(20.00, channel.voltage, 2)
self.assertAlmostEqual(2.000, channel.current, 3)
def test_model(self):
""" Test the IDN command.
Read the model number from the device.
"""
model = self.device.model
self.assertTrue(model.startswith("KORAD"))
def test_ocp(self):
""" Test Over Current Protection
There's no way to get feedback on these, so simply ensure that no exceptions are thrown.
"""
self.device.over_current_protection.on()
self._pause()
self.device.over_current_protection.off()
def test_ovp(self):
""" Test Over Voltage Protection
There's no way to get feedback on these, so simply ensure that no exceptions are thrown.
"""
self.device.over_voltage_protection.on()
self._pause()
self.device.over_voltage_protection.off()
def test_output(self):
""" Ensure the device is reporting the output on/off state correctly.
"""
self.device.output.on()
status = self.device.status
self.assertEqual(OnOffState.on, status.output)
self._pause()
self.device.output.off()
status = self.device.status
self.assertEqual(OnOffState.off, status.output)
def test_track(self):
""" Test the TRACK commands.
**NOTE:** The tests here are hypothetical.
I don't have a multi-channel power supply to actually test this against.
"""
if not self.overrideSkippedTests:
return
self.device.track(Tracking.parallel)
status = self.device.status
self.assertEqual(Tracking.parallel, status.tracking)
self._pause()
self.device.track(Tracking.series)
status = self.device.status
self.assertEqual(Tracking.series, status.tracking)
self._pause()
self.device.track(Tracking.independent)
status = self.device.status
self.assertEqual(Tracking.independent, status.tracking)
global i1Graphic
global i2Graphic
# .ini variables
global ps1Vini
global ps2Vini
global ps1Vmaxini
global ps2Vmaxini
global ps1Imaxini
global ps2Imaxini
global runPS1
global runPS2
maxPSV = 5.0
maxPSI = 5.0
ps1 = KoradSerial(ps1serialPort) # handle def
ps2 = KoradSerial(ps2serialPort) # handle def
# Acquiring initial readings from PS1
ps1currentActual = ps1.current_actual # actual current being given out
ps1currentRead = ps1.current_set # read what you previously set
ps1deviceStatus = ps1.status
# Acquiring initial readings from PS2
ps2currentActual = ps2.current_actual # actual current being given out
ps2voltageRead = ps2.voltage_set # read what you previously set
ps2currentRead = ps2.current_set # read what you previously set
ps2deviceStatus = ps2.status
# Acquiring the values from the INI file
ps1Voltage = float(parser.get("Settings", 'ps1Voltage')) # Initial voltage definition for PS1
import ConfigParser from ConfigParser import SafeConfigParser # from koradcli import korad # Definition of serial ports for 2 power supplies ps1serialPort = 'COM4' # COMM PORT 1 ps2serialPort = 'COM5' # COMM PORT 2 # Variable definitions global ps1 global ps2 global ps1output global ps2output ps1 = KoradSerial(ps1serialPort) # handle def ps2 = KoradSerial(ps2serialPort) # handle def ps1.output = 'off' ps2.output = 'off' # Acquiring initial readings from PS1 ps1voltageActual = ps1.voltage_actual # actual voltage being given out ps1currentActual = ps1.current_actual # actual current being given out ps1voltageRead = ps1.voltage_set # read what you previously set ps1currentRead = ps1.current_set # read what you previously set ps1deviceStatus = ps1.status # Acquiring initial readings from PS2 ps2voltageActual = ps2.voltage_actual # actual voltage being given out ps2currentActual = ps2.current_actual # actual current being given out ps2voltageRead = ps2.voltage_set # read what you previously set
def setUp(self):
self.device = KoradSerial('/dev/tty.usbmodemfd121', True)
self.overrideSkippedTests = False
class KoradSerialTest(TestCase):
def setUp(self):
self.device = KoradSerial('/dev/tty.usbmodemfd121', True)
self.overrideSkippedTests = False
def _pause(self, delay=1):
""" Give the power supply time to digest the commands.
:param delay: How long to pause. The default 1 second is overkill.
"""
sleep(delay)
def test_beep(self):
""" Test the BEEP command.
According to what I've read on the Internet, and confirmed by my trials, is that BEEP0 doesn't work.
Thus this test is useless.
:return:
"""
if not self.overrideSkippedTests:
return
self.device.beep.off()
status = self.device.status
self.assertEqual(OnOffState.off, status.beep)
self._pause()
self.device.beep.on()
status = self.device.status
self.assertEqual(OnOffState.on, status.beep)
def test_channel1(self):
""" Test Channel 1's functionality.
This test assumes a small load (perhaps 100 ohm) is on the power supply so a small amount of current is drawn.
"""
channel = self.device.channels[0]
# Turn off output and ensure that it's reading zeroes.
self.device.output.off()
self._pause()
self.assertEqual(0, channel.output_voltage)
self.assertEqual(0, channel.output_current)
# Set the current and voltage and ensure it's reporting back correctly.
channel.voltage = 12.34
channel.current = 1.234
self.assertAlmostEqual(12.34, channel.voltage, 2)
self.assertAlmostEqual(1.234, channel.current, 3)
# Set a different current and voltage to ensure that we're not reading old data.
channel.voltage = 3.30
channel.current = 0.123
self.assertAlmostEqual(3.30, channel.voltage, 2)
self.assertAlmostEqual(0.123, channel.current, 3)
# Turn on the output and ensure that current is flowing across the small load.
self.device.output.on()
self._pause()
self.assertAlmostEqual(3.30, channel.output_voltage, 2)
self.assertLess(0, channel.output_current)
self.device.output.off()
def test_lock(self):
""" Test the lock state.
Ha! Just kidding. This is a stub.
It appears that there is no command to alter the lock state.
While connected to a serial line and processing commands, the power supply is in a lock state.
"""
if not self.overrideSkippedTests:
return
pass
def test_memory(self):
""" Ensure that memory store/recall works.
A two-step process is required to set a memory.
* First, one must choose the memory number with a `recall()` command.
* Second, one must set the desired voltage and current limit.
* Third, one must save the memory with a `save()` command.
Recalling a memory setting simply requires calling the `recall()` command.
This goes through the test twice with different values to ensure what is read isn't old data.
"""
channel = self.device.channels[0]
m1 = self.device.memories[0]
m2 = self.device.memories[1]
m3 = self.device.memories[2]
m4 = self.device.memories[3]
# Pass one with the first set of values.
m1.recall()
channel.voltage = 1.00
channel.current = 0.100
m1.save()
m2.recall()
channel.voltage = 2.00
channel.current = 0.200
m2.save()
m3.recall()
channel.voltage = 3.00
channel.current = 0.300
m3.save()
m4.recall()
channel.voltage = 4.00
channel.current = 0.400
m4.save()
m1.recall()
self.assertAlmostEqual(1.00, channel.voltage, 2)
self.assertAlmostEqual(0.100, channel.current, 3)
m2.recall()
self.assertAlmostEqual(2.00, channel.voltage, 2)
self.assertAlmostEqual(0.200, channel.current, 3)
m3.recall()
self.assertAlmostEqual(3.00, channel.voltage, 2)
self.assertAlmostEqual(0.300, channel.current, 3)
m4.recall()
self.assertAlmostEqual(4.00, channel.voltage, 2)
self.assertAlmostEqual(0.400, channel.current, 3)
# Pass two with different values.
m1.recall()
channel.voltage = 5.00
channel.current = 0.500
m1.save()
m2.recall()
channel.voltage = 10.00
channel.current = 1.000
m2.save()
m3.recall()
channel.voltage = 15.00
channel.current = 1.500
m3.save()
m4.recall()
channel.voltage = 20.00
channel.current = 2.000
m4.save()
m1.recall()
self.assertAlmostEqual(5.00, channel.voltage, 2)
self.assertAlmostEqual(0.500, channel.current, 3)
m2.recall()
self.assertAlmostEqual(10.00, channel.voltage, 2)
self.assertAlmostEqual(1.000, channel.current, 3)
m3.recall()
self.assertAlmostEqual(15.00, channel.voltage, 2)
self.assertAlmostEqual(1.500, channel.current, 3)
m4.recall()
self.assertAlmostEqual(20.00, channel.voltage, 2)
self.assertAlmostEqual(2.000, channel.current, 3)
def test_model(self):
""" Test the IDN command.
Read the model number from the device.
"""
model = self.device.model
self.assertTrue(model.startswith("KORAD"))
def test_ocp(self):
""" Test Over Current Protection
There's no way to get feedback on these, so simply ensure that no exceptions are thrown.
"""
self.device.over_current_protection.on()
self._pause()
self.device.over_current_protection.off()
def test_ovp(self):
""" Test Over Voltage Protection
There's no way to get feedback on these, so simply ensure that no exceptions are thrown.
"""
self.device.over_voltage_protection.on()
self._pause()
self.device.over_voltage_protection.off()
def test_output(self):
""" Ensure the device is reporting the output on/off state correctly.
"""
self.device.output.on()
status = self.device.status
self.assertEqual(OnOffState.on, status.output)
self._pause()
self.device.output.off()
status = self.device.status
self.assertEqual(OnOffState.off, status.output)
def test_track(self):
""" Test the TRACK commands.
**NOTE:** The tests here are hypothetical.
I don't have a multi-channel power supply to actually test this against.
"""
if not self.overrideSkippedTests:
return
self.device.track(Tracking.parallel)
status = self.device.status
self.assertEqual(Tracking.parallel, status.tracking)
self._pause()
self.device.track(Tracking.series)
status = self.device.status
self.assertEqual(Tracking.series, status.tracking)
self._pause()
self.device.track(Tracking.independent)
status = self.device.status
self.assertEqual(Tracking.independent, status.tracking)
import serial
from time import sleep
from koradserial import KoradSerial
from koradserial import OnOffState
from koradserial import Tracking
mydevice = KoradSerial("COM3", False)
channel = mydevice.channels[0]
channel.voltage = 12
dev_status = mydevice.status
print(dev_status)
mydevice.output.on()
dev_status = mydevice.status
print(dev_status)
load = {}
# for i in range(50, 150, 5):
# channel.voltage = i/10
# sleep(0.01)
# #load.append(channel.output_current)
# load["{} volt".format(i/10)] = "{} Amp".format(channel.output_current)
#
# for i in range(150, 45, -5):
# channel.voltage = i / 10
# sleep(0.01)
# #load.append(channel.output_current)
# load["{} volt".format(i)] = "{} Amp".format(channel.output_current)
#mydevice.output.off()
def enablePowerSupply(device, powerOn=True):
with KoradSerial(device) as ps:
ps.output.on() if powerOn == True else ps.output.off()
with KoradSerial('/dev/ttyACM0') as ps:
print("V: {}V".format(ps.channels[0].output_voltage))
print("I: {}A".format(ps.channels[0].output_current))
def setUp(self):
self.ps = KoradSerial(serial_port)
self.ps.output = OnOffState('off')
class KoradSerialTest(TestCase):
def setUp(self):
self.ps = KoradSerial(serial_port)
self.ps.output = OnOffState('off')
def tearDown(self):
self.ps.close()
def test_modelstring(self):
model = self.ps.model
self.assertTrue(
model.startswith('KORAD') or model.startswith('VELLEMAN'))
def test_statusclass(self):
status = self.ps.status
self.assertIsInstance(status.mode, OutputMode)
self.assertIsInstance(status.beep, OnOffState)
self.assertIsInstance(status.ocp, OnOffState)
self.assertIsInstance(status.ovp, OnOffState)
self.assertIsInstance(status.output, OnOffState)
def test_ocp(self):
self.ps.ocp = OnOffState('on')
self.assertEqual(self.ps.ocp.name, 'on')
self.ps.ocp = 'off'
self.assertEqual(self.ps.ocp.name, 'off')
def test_ovp(self):
self.ps.ovp = OnOffState('on')
self.assertEqual(self.ps.ovp.name, 'on')
self.ps.ovp = 'off'
self.assertEqual(self.ps.ovp.name, 'off')
def test_output(self):
self.ps.output = OnOffState('off')
self.assertEqual(self.ps.output.name, 'off')
self.ps.output = 'on'
self.assertEqual(self.ps.output.name, 'on')
def test_voltage(self):
self.ps.output = OnOffState('off')
voltage = self.ps.voltage_set
self.ps.voltage = 1
self.assertEqual(self.ps.voltage_actual, 0)
self.assertEqual(self.ps.voltage_set, 1)
self.ps.voltage = voltage
def test_current(self):
self.ps.output = OnOffState('off')
current = self.ps.current_set
self.ps.current = 1
self.assertEqual(self.ps.current_actual, 0)
self.assertEqual(self.ps.current_set, 1)
self.ps.current = current
def test_memory(self):
# remember saved values
self.ps.recall_from_memory(1)
c1, v1 = self.ps.current_set, self.ps.voltage_set
self.ps.recall_from_memory(2)
c2, v2 = self.ps.current_set, self.ps.voltage_set
self.ps.current = 2.0
self.ps.voltage = 5.0
self.ps.save_to_memory(1)
self.ps.current = 0.5
self.ps.voltage = 3.3
self.ps.save_to_memory(2)
self.ps.recall_from_memory(1)
self.assertEqual(self.ps.current_set, 2.0)
self.assertEqual(self.ps.voltage_set, 5.0)
self.ps.recall_from_memory(2)
self.assertEqual(self.ps.current_set, 0.5)
self.assertEqual(self.ps.voltage_set, 3.3)
self.ps.current = 1.5
self.ps.voltage = 8.0
self.ps.save_to_memory(1)
self.ps.current = 0.2
self.ps.voltage = 15.0
self.ps.save_to_memory(2)
self.ps.recall_from_memory(1)
self.assertEqual(self.ps.current_set, 1.5)
self.assertEqual(self.ps.voltage_set, 8.0)
self.ps.recall_from_memory(2)
self.assertEqual(self.ps.current_set, 0.2)
self.assertEqual(self.ps.voltage_set, 15.0)
# set backed up values
self.ps.current, self.ps.voltage = c2, v2
self.ps.save_to_memory(2)
self.ps.current, self.ps.voltage = c1, v1
self.ps.save_to_memory(1)
import serial
from time import sleep
from koradserial import KoradSerial
from koradserial import OnOffState
from koradserial import Tracking
mydevice = KoradSerial("COM3", 1)
channel = mydevice.channels[0]
channel.voltage = 5
channel.current = 2
mydevice.output.off()
#power_state = mydevice.status
print(OnOffState.on.value)
load = channel.output_current
print(load)
# #wait = input("press to continue" )
# wait = 'r'
# while wait == 'r':
# wait = input("press to continue: ")
# load = channel.output_current
# print(load)
wait = input("press to continue: ")
mydevice.output.off()
mydevice.close()
# ser = serial.Serial('COM3')
# print(ser.name)
# #ser.write(b'VSET1:6.34')
def setUp(self):
self.device = KoradSerial('/dev/tty.usbmodemfd121', True)
self.overrideSkippedTests = False
from unittest import TestCase, main # from click.testing import CliRunner import Tkinter from Tkinter import * import tkMessageBox import datetime import time from koradserial import KoradSerial, OnOffState, OutputMode # from koradcli import korad # Definition of serial ports for 2 power supplies ps1serialPort = 'COM4' # COMM PORT 1 ps2serialPort = 'COM5' # COMM PORT 2 ps1 = KoradSerial(ps1serialPort) # handle def ps2 = KoradSerial(ps2serialPort) # handle def # Setting the electrical parameters and power source configuration ps1.current = 5.0 #set current ps1.voltage = 1.4 #set voltage ps1.ovp = 'off' ps1.ocp = 'on' ps1.cv = 'on' ps2.current = 5.0 #set current ps2.voltage = 1.4 #set voltage ps2.ovp = 'off' ps2.ocp = 'off' ps2.cv = 'on'
from koradserial import KoradSerial
import time
import sys
if len(sys.argv) != 3:
print("Usage: app.py serial_port output file")
sys.exit(-1)
with KoradSerial(sys.argv[1]) as power_supply:
with open(sys.argv[2], 'w') as f:
f.write("time,voltage,current\n")
while True:
f.write("{0},{1},{2}\n".format(
time.time(), power_supply.channels[0].output_voltage,
power_supply.channels[0].output_current))
time.sleep(1)
def printPowerSupplyInfo(device):
with KoradSerial(device) as ps:
print("Model: {}".format(ps.model))
print("Status: {}".format(ps.status))
