kopia lustrzana https://github.com/micropython/micropython-lib
hs3003: Add new relative humidity and temperature sensor driver.
Renesas HS3003 Humidity and Temperature sensor driver.pull/593/head
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"""
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The MIT License (MIT)
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Copyright (c) 2023 Arduino SA
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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HS3003 driver for MicroPython.
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Example usage:
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import time
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from hs3003 import HS3003
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from machine import Pin, I2C
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bus = I2C(1, scl=Pin(15), sda=Pin(14))
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hts = HS3003(bus)
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while True:
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rH = hts.humidity()
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temp = hts.temperature()
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print ("rH: %.2f%% T: %.2fC" %(rH, temp))
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time.sleep_ms(100)
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"""
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import struct
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class HS3003:
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def __init__(self, bus, address=0x44):
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self.bus = bus
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self.address = address
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def _read_data(self):
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# Init measurement mode
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self.bus.writeto(self.address, b"")
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# Data fetch
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return struct.unpack(">HH", self.bus.readfrom(self.address, 4))
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def humidity(self):
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"""Returns the relative humidity in percent."""
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h, t = self._read_data()
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return ((h & 0x3FFF) / 16383) * 100
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def temperature(self):
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"""Returns the temperature in degrees Celsius."""
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h, t = self._read_data()
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return ((t >> 2) / 16383) * 165 - 40
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metadata(description="Renesas HS3003 Humidity and Temperature sensor driver.", version="1.0.0")
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module("hs3003.py", opt=3)
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