SHTC3 I2C Test

code.py

import time
import board
import adafruit_lps35hw
import adafruit_dps310
import adafruit_shtc3


"""
run, then ^C^D or re-save file to CIRCUITPY, 
and line 42 (`sht =`) will fail:

  File "adafruit_shtc3.py", line 93, in __init__
  File "adafruit_shtc3.py", line 124, in reset
  File "adafruit_shtc3.py", line 120, in reset
  File "adafruit_shtc3.py", line 103, in _write_command
  File "adafruit_shtc3.py", line 103, in _write_command
  File "adafruit_bus_device/i2c_device.py", line 104, in write
OSError: [Errno 5] Input/output error

unrecoverable w/o power cycle to the SHTC3

but can also recover by re-saving this code with SHTC3 code commented out
"""


try:
    i2c = board.I2C()
except RuntimeError as e:
    print("I2C error:", e)

try:
    lps = adafruit_lps35hw.LPS35HW(i2c)
except ValueError as e:
    print("LPS35HW not found:", e)

try:
    dps310 = adafruit_dps310.DPS310(i2c)
except ValueError as e:
    print("DPS310 not found:", e)

try:
    sht = adafruit_shtc3.SHTC3(i2c)
except ValueError as e:
    print("SHTC3 not found:", e)
"""
except OSError as e:
    print("SHTC3 OSError:", e)
    # i2c.deinit()
"""

def i2c_scan():
    try:
        while not i2c.try_lock():
            pass
        device_addresses = i2c.scan()
        i2c.unlock()
        print("I2C addresses:", end=" ")
        for device_address in device_addresses:
            print(hex(device_address), end=' ')
        print("\n")
    except (RuntimeError, NameError) as e:
        print("I2C Error:", e)


i2c_scan()

while True:
    
    try:
        print("LPS35HW", end="")
        fahr = lps.temperature * 9/5 + 32
        print("\t%.0f  °F" % fahr, end="")
        print("\t\t\t%.1f hPa" % lps.pressure, end="")
        print()
    except NameError as e:
        print(e)

    try:
        print("DPS310", end="")
        fahr = dps310.temperature * 9/5 + 32
        print("\t%.1f°F" % fahr, end="")  # ±0.5°C accuracy
        print("\t\t\t%.1f hPa" % dps310.pressure, end="")
        print()
    except NameError as e:
        print(e)

    try:
        print("SHT3C", end="")
        temperature, relative_humidity = sht.measurements
        fahr = temperature * 9/5 + 32
        print("\t%0.1f°F" % fahr, end="")
        print("\t\t%0.0f%%" % relative_humidity, end="")
        print()
    except NameError as e:
        print(e)

    print()
    time.sleep(5)