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fixing resolutions #11

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merged 3 commits into from
Jun 28, 2023
Merged

fixing resolutions #11

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0b99d4c
fixing resolutions
jposada202020 Jun 28, 2023
a122a49
fixing resolutions
jposada202020 Jun 28, 2023
a6757b6
fixing resolutions
jposada202020 Jun 28, 2023
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16 changes: 9 additions & 7 deletions adafruit_htu31d.py
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Original file line number Diff line number Diff line change
Expand Up @@ -163,7 +163,9 @@ def measurements(self) -> Tuple[float, float]:
i2c.write(self._buffer, end=1)

# wait conversion time
time.sleep(0.02)
# Changed as reading temp and hum at OS3 is 20.32 ms
# See datasheet Table 5
time.sleep(0.03)

self._buffer[0] = _HTU31D_READTEMPHUM
with self.i2c_device as i2c:
Expand Down Expand Up @@ -202,7 +204,7 @@ def humidity_resolution(self) -> Literal["0.020%", "0.014%", "0.010%", "0.007%"]

"""

return _HTU31D_HUMIDITY_RES[self._conversion_command >> 4 & 3]
return _HTU31D_HUMIDITY_RES[self._conversion_command >> 3 & 3]

@humidity_resolution.setter
def humidity_resolution(
Expand All @@ -212,9 +214,9 @@ def humidity_resolution(
raise ValueError(
f"Humidity resolution must be one of: {_HTU31D_HUMIDITY_RES}"
)
register = self._conversion_command & 0xCF
register = self._conversion_command & 0xE7
hum_res = _HTU31D_HUMIDITY_RES.index(value)
self._conversion_command = register | hum_res << 4
self._conversion_command = register | hum_res << 3

@property
def temp_resolution(self) -> Literal["0.040", "0.025", "0.016", "0.012"]:
Expand All @@ -229,7 +231,7 @@ def temp_resolution(self) -> Literal["0.040", "0.025", "0.016", "0.012"]:

"""

return _HTU31D_TEMP_RES[self._conversion_command >> 2 & 3]
return _HTU31D_TEMP_RES[self._conversion_command >> 1 & 3]

@temp_resolution.setter
def temp_resolution(
Expand All @@ -239,9 +241,9 @@ def temp_resolution(
raise ValueError(
f"Temperature resolution must be one of: {_HTU31D_TEMP_RES}"
)
register = self._conversion_command & 0xF3
register = self._conversion_command & 0xF9
temp_res = _HTU31D_TEMP_RES.index(value)
self._conversion_command = register | temp_res << 2
self._conversion_command = register | temp_res << 1

@staticmethod
def _crc(value) -> int:
Expand Down
29 changes: 24 additions & 5 deletions examples/htu31d_setting_resolutions.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
#
# SPDX-License-Identifier: MIT

import time
import board
import adafruit_htu31d

Expand All @@ -15,16 +16,34 @@
print("Temperature Resolution: ", htu.temp_resolution)
print("Humidity Resolution: ", htu.humidity_resolution)


# Setting the temperature resolution.
# Possible values are "0.040", "0.025", "0.016" and "0.012"
htu.temp_resolution = "0.016"
htu.temp_resolution = "0.040"

# Setting the Relative Humidity resolution.
# Possible values are "0.020%", "0.014%", "0.010%" and "0.007%"
htu.humidity_resolution = "0.007%"

htu.humidity_resolution = "0.020%"

# Printing the New Values
print("Temperature Resolution: ", htu.temp_resolution)
print("Humidity Resolution: ", htu.humidity_resolution)

hum_res = ["0.020%", "0.014%", "0.010%", "0.007%"]
temp_res = ["0.040", "0.025", "0.016", "0.012"]

while True:
for humidity_resolution in hum_res:
htu.humidity_resolution = humidity_resolution
print(f"Current Humidity Resolution: {humidity_resolution}")
for _ in range(2):
print(f"Humidity: {htu.relative_humidity:.2f}")
print(f"Temperature: {htu.temperature:.2f}")
print("")
time.sleep(0.5)
for temperature_resolution in temp_res:
htu.temp_resolution = temperature_resolution
print(f"Current Temperature Resolution: {temperature_resolution}")
for _ in range(2):
print(f"Humidity: {htu.relative_humidity:.2f}")
print(f"Temperature: {htu.temperature:.2f}")
print("")
time.sleep(0.5)