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""" | ||
TSL2561 luminosity sensor | ||
""" | ||
from typing import cast | ||
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from ...types import CerberusSchemaType, ConfigType, SensorValueType | ||
from . import GenericSensor | ||
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REQUIREMENTS = ("adafruit-circuitpython-tsl2561",) | ||
CONFIG_SCHEMA: CerberusSchemaType = { | ||
"chip_addr": { | ||
"type": 'integer', | ||
"required": False, | ||
"empty": False, | ||
"default": '0x48'}, | ||
"integration_time": { | ||
"required": False, | ||
"empty": False, | ||
"allowed": [13.7, 101, 402], | ||
"default": 101, | ||
}, | ||
"gain": { | ||
"required": False, | ||
"empty": False, | ||
"allowed": [1, 16], | ||
"default": 1, | ||
}, | ||
} | ||
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class Sensor(GenericSensor): | ||
""" | ||
Implementation of Sensor class for the Adafruit_ADS1x15. | ||
""" | ||
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SENSOR_SCHEMA: CerberusSchemaType = { | ||
"type": { | ||
"type": 'string', | ||
"required": False, | ||
"empty": False, | ||
"allowed": ['broadband', 'infrared', 'lux'], | ||
"default": 'lux', | ||
}, | ||
} | ||
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def setup_module(self) -> None: | ||
# pylint: disable=import-outside-toplevel,attribute-defined-outside-init | ||
# pylint: disable=import-error,no-member | ||
import board # type: ignore | ||
import busio # type: ignore | ||
import adafruit_tsl2561 # type: ignore | ||
# Create the I2C bus | ||
self.i2c = busio.I2C(board.SCL, board.SDA) | ||
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# Convert sensor address from hex to dec | ||
self.address = int(0x48) | ||
if 'chip_addr' in self.config: | ||
self.address = int(self.config['chip_addr']) | ||
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self.tsl = adafruit_tsl2561.TSL2561(self.i2c, self.address) | ||
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# Set gain 0=1x, 1=16x | ||
gains = { | ||
"1": 0, | ||
"16": 1, | ||
} | ||
if 'gain' in self.config: | ||
self.tsl.gain = gains[str(self.config["gain"])] | ||
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# Set integration time (0=13.7ms, 1=101ms, 2=402ms, or 3=manual) | ||
ints = { | ||
"13.7": 0, | ||
"101": 1, | ||
"402": 2, | ||
} | ||
if 'integration_time' in self.config: | ||
self.tsl.integration_time = ints[str(self.config["integration_time"])] | ||
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self.tsl.enabled = True | ||
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#print("tsl2561 Enabled = {}".format(self.tsl.enabled)) | ||
#print("tsl2561 Gain = {}".format(self.tsl.gain)) | ||
#print("tsl2561 Integration time = {}".format(self.tsl.integration_time)) | ||
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def get_value(self, sens_conf: ConfigType) -> SensorValueType: | ||
# pylint: disable=import-outside-toplevel,attribute-defined-outside-init | ||
# pylint: disable=import-error,no-member | ||
import time | ||
self.tsl.enabled = True | ||
time.sleep(1) | ||
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sens_type = sens_conf["type"] | ||
data = { | ||
"broadband": self.tsl.broadband, | ||
"infrared": self.tsl.infrared, | ||
"lux": self.tsl.lux | ||
} | ||
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self.tsl.enabled = False | ||
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if data[sens_type] is None: # Possible sensor underrange or overrange. | ||
data[sens_type] = -1 | ||
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return cast( | ||
float, | ||
data[sens_type], | ||
) |
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""" | ||
VEML 6075 UV sensor | ||
""" | ||
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import logging | ||
from mqtt_io.types import ConfigType, SensorValueType | ||
from . import GenericSensor | ||
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REQUIREMENTS = ("smbus2", "veml6075",) | ||
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CONFIG_SCHEMA = { | ||
"i2c_bus_num": {"type": "integer", "required": True, "empty": False}, | ||
} | ||
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# UV COEFFICIENTS AND RESPONSIVITY | ||
# More details here : | ||
# https://web.archive.org/web/20190416120825/http://www.vishay.com/docs/84339/designingveml6075.pdf | ||
# For more details | ||
################################################################################## | ||
# Configuration # a # b # c # d # UVAresp # UVBresp # | ||
################################################################################## | ||
# No teflon (open air) # 2.22 # 1.33 # 2.95 # 1.74 # 0.001461 # 0.002591 # | ||
# 0.1 mm teflon 4.5 mm window # 2.22 # 1.33 # 2.95 # 1.74 # 0.002303 # 0.004686 # | ||
# 0.1 mm teflon 5.5 mm window # 2.22 # 1.33 # 2.95 # 1.74 # 0.002216 # 0.005188 # | ||
# 0.1 mm teflon 10 mm window # 2.22 # 1.33 # 2.95 # 1.74 # 0.002681 # 0.004875 # | ||
# 0.25 mm teflon 10 mm window # 2.22 # 1.33 # 2.95 # 1.74 # 0.002919 # 0.009389 # | ||
# 0.4 mm teflon 10 mm window # 2.22 # 1.17 # 2.95 # 1.58 # 0.004770 # 0.006135 # | ||
# 0.7 mm teflon 10 mm window # 2.22 # 1.17 # 2.95 # 1.58 # 0.007923 # 0.008334 # | ||
# 1.0 mm teflon 5.5 mm window # 2.55 # 1.00 # 3.80 # 1.10 # 0.006000 # 0.003100 # | ||
################################################################################## | ||
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_LOG = logging.getLogger(__name__) | ||
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class Sensor(GenericSensor): | ||
""" | ||
Implementation of Sensor class for the VEML 6075 UV sensor. | ||
""" | ||
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SENSOR_SCHEMA = { | ||
"a": {"type": "float", "required": False, "empty": False, "default": 2.22}, | ||
"b": {"type": "float", "required": False, "empty": False, "default": 1.33}, | ||
"c": {"type": "float", "required": False, "empty": False, "default": 2.95}, | ||
"d": {"type": "float", "required": False, "empty": False, "default": 1.74}, | ||
"UVAresp": {"type": "float", "required": False, "empty": False, "default": 0.001461}, | ||
"UVBresp": {"type": "float", "required": False, "empty": False, "default": 0.002591}, | ||
} | ||
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def setup_module(self) -> None: | ||
# pylint: disable=import-outside-toplevel,import-error | ||
from smbus2 import SMBus # type: ignore | ||
from veml6075 import VEML6075 # type: ignore | ||
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self.bus = SMBus(self.config["i2c_bus_num"]) | ||
self.sensor = VEML6075(i2c_dev=self.bus) | ||
self.sensor.set_shutdown(True) | ||
self.sensor.set_high_dynamic_range(False) | ||
self.sensor.set_integration_time('100ms') | ||
self.sensor.set_shutdown(False) | ||
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def calculate_uv_index(self, sens_conf: ConfigType, \ | ||
uva: float, uvb: float, uv_comp1: float, uv_comp2: float) -> float: | ||
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""" | ||
Calculate the UV index from received values. | ||
""" | ||
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_LOG.debug("UVA: %f UVB: %f UV_comp1: %f UV_comp2: %f)", uva, uvb, uv_comp1, uv_comp2) | ||
uva_calc = uva - (sens_conf["a"] * uv_comp1) - (sens_conf["b"] * uv_comp2) | ||
uvb_calc = uvb - (sens_conf["c"] * uv_comp1) - (sens_conf["d"] * uv_comp2) | ||
_LOG.debug("uva_calc: %f uvb_calc: %f", uva_calc, uvb_calc) | ||
uva_index = uva_calc * sens_conf["UVAresp"] | ||
uvb_index = uvb_calc * sens_conf["UVBresp"] | ||
_LOG.debug("uva_index: %f uvb_index: %f", uva_index, uvb_index) | ||
uv_index: float = (uva_index + uvb_index) / 2.0 | ||
return uv_index | ||
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def get_value(self, sens_conf: ConfigType) -> SensorValueType: | ||
""" | ||
Get the UV index from the sensor | ||
""" | ||
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# Fetch the values | ||
uva, uvb = self.sensor.get_measurements() | ||
uv_comp1, uv_comp2 = self.sensor.get_comparitor_readings() | ||
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# Calculate and return the UV index | ||
return self.calculate_uv_index(sens_conf, uva, uvb, uv_comp1, uv_comp2) |
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