Simple test

Ensure your device works with this simple test.

examples/sht31d_simpletest.py
 1# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
 2# SPDX-License-Identifier: MIT
 3
 4import time
 5import board
 6import adafruit_sht31d
 7
 8# Create sensor object, communicating over the board's default I2C bus
 9i2c = board.I2C()
10sensor = adafruit_sht31d.SHT31D(i2c)
11
12loopcount = 0
13while True:
14    print("\nTemperature: %0.1f C" % sensor.temperature)
15    print("Humidity: %0.1f %%" % sensor.relative_humidity)
16    loopcount += 1
17    time.sleep(2)
18    # every 10 passes turn on the heater for 1 second
19    if loopcount == 10:
20        loopcount = 0
21        sensor.heater = True
22        print("Sensor Heater status =", sensor.heater)
23        time.sleep(1)
24        sensor.heater = False
25        print("Sensor Heater status =", sensor.heater)

Simple Mode

Example in how to use the sensor in simple mode

examples/sht31d_simple_mode.py
 1# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
 2# SPDX-License-Identifier: MIT
 3
 4import board
 5import adafruit_sht31d
 6
 7# Create sensor object, communicating over the board's default I2C bus
 8i2c = board.I2C()
 9sensor = adafruit_sht31d.SHT31D(i2c)
10
11print("\033[1mSensor\033[0m = SHT31-D")
12print("\033[1mSerial Number\033[0m = ", sensor.serial_number, "\n")
13
14for i in range(3):
15    if i == 0:
16        sensor.repeatability = adafruit_sht31d.REP_LOW
17        print("\033[1m\033[36mLow Repeatability:\033[0m\n")
18    if i == 1:
19        sensor.repeatability = adafruit_sht31d.REP_MED
20        print("\n\033[1m\033[36mMedium Repeatability:\033[0m\n")
21    if i == 2:
22        sensor.repeatability = adafruit_sht31d.REP_HIGH
23        sensor.clock_stretching = True
24        print("\n\033[1m\033[36mHigh Repeatability:\033[0m")
25        print("\033[1m\033[95mClock Stretching:\033[0m \033[92mEnabled\033[0m\n")
26    for itr in range(3):
27        print("\033[1mTemperature:\033[0m %0.3f ºC" % sensor.temperature)
28        print("\033[1mHumidity:\033[0m %0.2f %%" % sensor.relative_humidity, "\n")

Periodic Mode

Example in how to use the sensor in periodic mode

examples/sht31d_simpletest.py
 1# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
 2# SPDX-License-Identifier: MIT
 3
 4import time
 5import board
 6import adafruit_sht31d
 7
 8# Create sensor object, communicating over the board's default I2C bus
 9i2c = board.I2C()
10sensor = adafruit_sht31d.SHT31D(i2c)
11
12loopcount = 0
13while True:
14    print("\nTemperature: %0.1f C" % sensor.temperature)
15    print("Humidity: %0.1f %%" % sensor.relative_humidity)
16    loopcount += 1
17    time.sleep(2)
18    # every 10 passes turn on the heater for 1 second
19    if loopcount == 10:
20        loopcount = 0
21        sensor.heater = True
22        print("Sensor Heater status =", sensor.heater)
23        time.sleep(1)
24        sensor.heater = False
25        print("Sensor Heater status =", sensor.heater)