def initialize_input(self):
import adafruit_sht4x
from adafruit_extended_bus import ExtendedI2C
try:
self.sensor = adafruit_sht4x.SHT4x(
ExtendedI2C(self.input_dev.i2c_bus),
address=int(str(self.input_dev.i2c_location), 16))
except:
self.logger.exception("Setting up sensor")
def ensure_sensor(self) -> None:
if not self._sensor:
log.debug(f"Initializing temp sensor {self._sensor_addr}")
self._sensor_init_count += 1
i2c = busio.I2C(board.SCL, board.SDA)
self._sensor = adafruit_sht4x.SHT4x(i2c)
log.debug(
f"Found SHT4x with serial number {hex(self._sensor.serial_number)}"
)
self._sensor.mode = adafruit_sht4x.Mode.MEDHEAT_1S
log.debug(
"SHT4x mode is: {adafruit_sht4x.Mode.string[self._sensor.mode]}"
)
def read_sht40(self):
"""
@brief Read sht40 raspberry pi i2c bus
Get temperatue, humidity
"""
try:
with I2C(self._bus) as i2c:
sht = adafruit_sht4x.SHT4x(i2c)
sht.mode = adafruit_sht4x.Mode.NOHEAT_HIGHPRECISION
time.sleep(1)
temperature, humidity = sht.measurements
if self._debug:
print("Temperature: %.3f °c" % temperature)
print("Humidity: %.3f %%" % humidity)
return temperature, humidity
except Exception as e:
print("cannot read sht40, An exception occurred: {}".format(e))
# SPDX-FileCopyrightText: Copyright (c) 2020 ladyada for Adafruit Industries
#
# SPDX-License-Identifier: MIT
import time
import busio
import board
import adafruit_sht4x
i2c = busio.I2C(board.SCL, board.SDA)
sht = adafruit_sht4x.SHT4x(i2c)
print("Found SHT4x with serial number", hex(sht.serial_number))
sht.mode = adafruit_sht4x.Mode.NOHEAT_HIGHPRECISION
# Can also set the mode to enable heater
# sht.mode = adafruit_sht4x.Mode.LOWHEAT_100MS
print("Current mode is: ", adafruit_sht4x.Mode.string[sht.mode])
while True:
temperature, relative_humidity = sht.measurements
print("Temperature: %0.1f C" % temperature)
print("Humidity: %0.1f %%" % relative_humidity)
print("")
time.sleep(1)
