AM2315 OSError: [Errno 19] No such device #27
Description
Temperature: 25.9
Traceback (most recent call last):
File "<stdin>", line 12, in <module>
File "/lib/adafruit_am2320.py", line 149, in relative_humidity
File "/lib/adafruit_am2320.py", line 123, in _read_register
OSError: [Errno 19] No such device
The error occurs if temperature and humidity are read without delay between readings.
following code is used:
import board
import busio
import time
import adafruit_am2320
i2c = busio.I2C(scl=board.GP17, sda=board.GP16)
am = adafruit_am2320.AM2320(i2c)
while True:
print("Temperature: ", am.temperature)
time.sleep(0.03)
print("Humidity: ", am.relative_humidity)
time.sleep(1)
at least 0.03 seconds of sleep is needed for the code to run correctly.
running on a raspberry pico W
circuitpyton v 8.0.0
no other devices attached
10k resistors are used to decouple scl and sda
the sensor is supplied with 3.3 V