def read_sensors(self):
"""
Read measurements from all sensor objects that have been registered in the sensor_manager.
Reading is done with the read() function of each respective sensor object.
"""
# Collect observations.
data = {}
richdata = {}
# Iterate all registered sensors.
sensors = self.sensor_manager.sensors
log.info('Reading %s sensor ports', len(sensors))
for sensor in sensors:
# Signal sensor reading to user.
sensorname = sensor.__class__.__name__
log.info('Reading sensor port "%s"', sensorname)
# Read sensor port.
try:
# Disable garbage collector to guarantee reasonable
# realtime behavior before invoking sensor reading.
with gc_disabled():
reading = sensor.read()
# Evaluate sensor outcome.
if reading is None or reading is AbstractSensor.SENSOR_NOT_INITIALIZED:
continue
# Add sensor reading to observations.
data.update(reading)
# Record reading for prettified output.
self.record_reading(sensor, reading, richdata)
except Exception as ex:
# Because of the ``gc_disabled`` context manager used above,
# the propagation of exceptions has to be tweaked like that.
log.exc(ex, 'Reading sensor "%s" failed', sensorname)
# Feed the watchdog.
self.device.watchdog.feed()
# Clean up memory after reading each sensor object.
#self.device.run_gc()
# Debugging: Print sensor data before running telemetry.
prettify_log = self.settings.get('sensors.prettify_log', False)
if prettify_log:
log.info('Sensor data:\n\n%s', ddformat(richdata, indent=11))
else:
log.info('Sensor data: %s', data)
return data
def read_sensors(self) -> DataFrame:
"""
Read measurements from all sensor objects that have been registered in the sensor_manager.
Reading is done with the read() function of each respective sensor object.
"""
# Power up sensor peripherals.
self.sensor_manager.power_on()
# Collect observations.
data = {}
richdata = {}
readings = []
# Iterate all registered sensors.
sensors = self.sensor_manager.sensors
log.info('Reading %s sensor ports', len(sensors))
for sensor in sensors:
# Signal sensor reading to user.
sensorname = sensor.__class__.__name__
log.info('Reading sensor port "%s"', sensorname)
# Read sensor port.
try:
# Disable garbage collector to guarantee reasonable
# realtime behavior before invoking sensor reading.
with gc_disabled():
sensor_outcome = sensor.read()
# Power off HX711 after reading
if "HX711Sensor" in sensorname:
sensor.power_off()
# Backward compat.
if isinstance(sensor_outcome, SensorReading):
sensor_reading = sensor_outcome
else:
sensor_reading = SensorReading()
sensor_reading.sensor = sensor
sensor_reading.data = sensor_outcome
sensor_data = sensor_reading.data
# Evaluate sensor outcome.
if sensor_data is None or sensor_data is AbstractSensor.SENSOR_NOT_INITIALIZED:
continue
# Round values according to sensor settings.
if sensor.settings.get('decimals') is not None:
for key, value in sensor_data.items():
sensor_data[key] = round(
sensor_data[key], sensor.settings.get('decimals'))
# Add sensor reading to observations.
data.update(sensor_data)
# Record reading for prettified output.
self.record_reading(sensor, sensor_data, richdata)
readings.append(sensor_reading)
except Exception as ex:
# Because of the ``gc_disabled`` context manager used above,
# the propagation of exceptions has to be tweaked like that.
log.exc(ex, 'Reading sensor "%s" failed', sensorname)
# Feed the watchdog.
self.device.watchdog.feed()
# Clean up memory after reading each sensor object.
#self.device.run_gc()
# Debugging: Print sensor data before running telemetry.
prettify_log = self.settings.get('sensors.prettify_log', False)
if prettify_log:
from terkin.util import ddformat
log.info('Sensor data:\n\n%s', ddformat(richdata, indent=11))
else:
log.info('Sensor data: %s', data)
# Capture all sensor readings.
result = DataFrame()
result.readings = readings
result.data_in = data
return result