def connect(self):
'''
Connect to dropbot-dx instrument.
'''
self.has_environment_data = False
self.environment_sensor_master = None
# if the dropbot dx plugin is installed and enabled, try getting its
# reference
try:
service = get_service_instance_by_name('wheelerlab.dropbot_dx')
if service.enabled():
self.dropbot_dx_remote = service.control_board
except:
pass
if self.dropbot_dx_remote is None:
# if we couldn't get a reference, try finding a DropBot DX connected to
# a serial port
try:
self.dropbot_dx_remote = dx.SerialProxy()
host_version = self.dropbot_dx_remote.host_software_version
remote_version = self.dropbot_dx_remote.remote_software_version
if remote_version != host_version:
response = yesno('The DropBot DX firmware version (%s) '
'does not match the driver version (%s). '
'Update firmware?' % (remote_version,
host_version))
if response == gtk.RESPONSE_YES:
self.on_flash_firmware()
# turn on the light by default
self.dropbot_dx_remote.light_enabled = True
except IOError:
logger.warning('Could not connect to DropBot DX.')
try:
env = self.get_environment_state(self.dropbot_dx_remote).to_dict()
logger.info('temp=%.1fC, Rel. humidity=%.1f%%' %
(env['temperature_celsius'],
100 * env['relative_humidity']))
self.has_environment_data = True
self.environment_sensor_master = self.dropbot_dx_remote
except:
service = get_service_instance_by_name('wheelerlab.dmf_control_board_plugin')
if service.enabled() and service.control_board.connected():
try:
env = self.get_environment_state(service.control_board).to_dict()
logger.info('temp=%.1fC, Rel. humidity=%.1f%%' %
(env['temperature_celsius'],
100 * env['relative_humidity']))
self.has_environment_data = True
self.environment_sensor_master = service.control_board
except:
pass
# Get instrument identifier, if available.
self.dropbot_dx_id = getattr(self.dropbot_dx_remote, 'id', None)
def get_step_label(self):
try:
step_label_plugin =\
get_service_instance_by_name('wheelerlab.step_label_plugin')
return step_label_plugin.get_step_options().get('label')
except:
return None
def max_voltage(element, state):
"""Verify that the voltage is below a set maximum"""
service = get_service_instance_by_name(ph.path(__file__).parent.name)
if service.control_board and (element.value >
service.control_board.max_waveform_voltage):
return element.errors.append(
'Voltage exceeds the maximum value (%d '
'V).' % service.control_board.max_waveform_voltage)
else:
return True
def max_voltage(element, state):
"""Verify that the voltage is below a set maximum"""
service = get_service_instance_by_name(
get_plugin_info(path(__file__).parent).plugin_name)
if service.control_board.connected() and \
element.value > service.control_board.max_waveform_voltage:
return element.errors.append('Voltage exceeds the maximum value '
'(%d V).' %
service.control_board.max_waveform_voltage)
else:
return True
def check_frequency(element, state):
"""Verify that the frequency is within the valid range"""
service = get_service_instance_by_name(ph.path(__file__).parent.name)
if service.control_board and (
element.value < service.control_board.min_waveform_frequency
or element.value > service.control_board.max_waveform_frequency):
return element.errors.append(
'Frequency is outside of the valid range '
'(%.1f - %.1f Hz).' %
(service.control_board.min_waveform_frequency,
service.control_board.max_waveform_frequency))
else:
return True
def initialize_connection_with_dropbot(self):
'''
If the dropbot plugin is installed and enabled, try getting its
reference.
'''
try:
service = get_service_instance_by_name('dropbot_plugin')
if service.enabled():
self.dropbot_remote = service.control_board
assert(self.dropbot_remote.properties.package_name == 'dropbot')
except Exception:
logger.debug('[%s] Could not communicate with Dropbot.', __name__,
exc_info=True)
logger.warning('Could not communicate with DropBot.')
def check_frequency(element, state):
"""Verify that the frequency is within the valid range"""
service = get_service_instance_by_name(
get_plugin_info(path(__file__).parent).plugin_name)
if service.control_board.connected() and \
(element.value < service.control_board.min_waveform_frequency or \
element.value > service.control_board.max_waveform_frequency):
return element.errors.append('Frequency is outside of the valid range '
'(%.1f - %.1f Hz).' %
(service.control_board.min_waveform_frequency,
service.control_board.max_waveform_frequency)
)
else:
return True
