enviroplus-python
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pimoroni
GPIO24: not found
After the fix of #134 I tried re-installing and rerunning. I get passed the get_pin part now, but am getting GPIO24: not found
Exception in thread Thread-2:
Traceback (most recent call last):
File "/usr/local/lib/python3.9/threading.py", line 980, in _bootstrap_inner
self.run()
File "/usr/local/lib/python3.9/threading.py", line 917, in run
self._target(*self._args, **self._kwargs)
File "/usr/src/enviroplus-mqtt/src/logger.py", line 60, in __read_pms_continuously
pms = PMS5003()
File "/usr/local/lib/python3.9/site-packages/pms5003/__init__.py", line 109, in __init__
self._pin_enable, self._pin_reset = gpiodevice.get_pins_for_platform(PLATFORMS)
ValueError: not enough values to unpack (expected 2, got 0)
Woah there, suitable gpiochip not found!
❌ GPIO24: not found - /dev/gpiochip2 (raspberrypi-exp-gpio)!
❌ GPIO24: not found - /dev/gpiochip1 (brcmvirt-gpio)!
❌ GPIO24: not found - /dev/gpiochip0 (pinctrl-bcm2835)!
This is running with --use-pms5003 but even without that flag, I don't get the exception but do get the GPIO24: not found messages.
What do you see if you run gpioinfo? (It should list all devices and GPIO pins, including their labels).
And also: lsb_release -a
Edit: I'm also in the process of pushing an updated pms5003 library (the one throwing the error in your case) which you can try with:
pip install git+https://github.com/pimoroni/pms5003-python@patch-simplify-gpio
I don't believe I have gpioinfo installed:
sudo find / -name gpioinfo finds nothing.
{'RELEASE': '10', 'CODENAME': 'buster', 'DESCRIPTION': 'Raspbian GNU/Linux 10 (buster)', 'ID': 'Raspbian'} []
Thanks! That worked. Here's the output:
piochip0 - 54 lines:
line 0: unnamed unused input active-high
line 1: unnamed unused input active-high
line 2: unnamed unused input active-high
line 3: unnamed unused input active-high
line 4: unnamed unused input active-high
line 5: unnamed unused input active-high
line 6: unnamed unused input active-high
line 7: unnamed "spi0 CS1" output active-low [used]
line 8: unnamed "spi0 CS0" output active-low [used]
line 9: unnamed unused input active-high
line 10: unnamed unused input active-high
line 11: unnamed unused input active-high
line 12: unnamed unused input active-high
line 13: unnamed unused input active-high
line 14: unnamed unused input active-high
line 15: unnamed unused input active-high
line 16: unnamed unused input active-high
line 17: unnamed unused input active-high
line 18: unnamed unused input active-high
line 19: unnamed unused input active-high
line 20: unnamed unused input active-high
line 21: unnamed unused input active-high
line 22: unnamed unused input active-high
line 23: unnamed unused input active-high
line 24: unnamed unused input active-high
line 25: unnamed unused input active-high
line 26: unnamed unused input active-high
line 27: unnamed unused input active-high
line 28: unnamed unused input active-high
line 29: unnamed unused input active-high
line 30: unnamed unused input active-high
line 31: unnamed unused input active-high
line 32: unnamed unused input active-high
line 33: unnamed unused input active-high
line 34: unnamed unused input active-high
line 35: unnamed unused input active-high
line 36: unnamed unused input active-high
line 37: unnamed unused input active-high
line 38: unnamed unused input active-high
line 39: unnamed unused input active-high
line 40: unnamed unused input active-high
line 41: unnamed unused input active-high
line 42: unnamed unused input active-high
line 43: unnamed unused input active-high
line 44: unnamed unused input active-high
line 45: unnamed unused input active-high
line 46: unnamed unused input active-high
line 47: unnamed unused output active-high
line 48: unnamed unused input active-high
line 49: unnamed unused input active-high
line 50: unnamed unused input active-high
line 51: unnamed unused input active-high
line 52: unnamed unused input active-high
line 53: unnamed unused input active-high
gpiochip1 - 2 lines:
line 0: unnamed "led0" output active-high [used]
line 1: unnamed unused input active-high
gpiochip2 - 8 lines:
line 0: unnamed unused output active-high
line 1: unnamed unused output active-high
line 2: unnamed unused output active-high
line 3: unnamed unused output active-high
line 4: unnamed unused input active-high
line 5: unnamed unused output active-high
line 6: unnamed unused output active-high
line 7: unnamed "led1" input active-high [used]
unnamed 💀
Well that's... extremely unhelpful.
The library currently requires GPIO line labels - available in later versions of Raspberry Pi OS - in order to figure out which pin to use. Without this you've got to be very explicit about which GPIO device and line(s) you want to open, eg:
⚠️ the below example needs an experimental version of the PMS5003 library:
pip install git+https://github.com/pimoroni/pms5003-python@patch-user-gpio
#!/usr/bin/env python3
import logging
import time
from gpiod import Chip
from pms5003 import PMS5003, ReadTimeoutError, OUTL, OUTH
logging.basicConfig(
format="%(asctime)s.%(msecs)03d %(levelname)-8s %(message)s",
level=logging.INFO,
datefmt="%Y-%m-%d %H:%M:%S")
logging.info("""particulates.py - Print readings from the PMS5003 particulate sensor.
Press Ctrl+C to exit!
""")
# Open the GPIO chip and request the enable/reset lines
chip = Chip("/dev/gpiochip0")
lines = chip.request_lines(consumer="pms5003", config={
22: OUTH,
27: OUTL
})
# Pass the requested lines and offsets into PMS5003...
pms5003 = PMS5003(pin_enable=(lines, 22), pin_reset=(lines, 27))
time.sleep(1.0)
try:
while True:
try:
readings = pms5003.read()
logging.info(readings)
except ReadTimeoutError:
pms5003 = PMS5003()
except KeyboardInterrupt:
pass
Sorry for the delay. I did what you said above:
pi@pi001:~ $ sudo python3 pyfoo.py
2024-04-28 16:47:04.535 INFO particulates.py - Print readings from the PMS5003 particulate sensor.
Press Ctrl+C to exit!
Traceback (most recent call last):
File "/home/pi/pyfoo.py", line 28, in <module>
pms5003 = PMS5003(pin_enable=(lines, 22), pin_reset=(lines, 27))
File "/usr/local/lib/python3.9/site-packages/pms5003/__init__.py", line 106, in __init__
self._pin_enable = gpiodevice.get_pin(pin_enable, "PMS5003_en", OUTH)
File "/usr/local/lib/python3.9/site-packages/gpiodevice/__init__.py", line 150, in get_pin
chip = find_chip_by_pins(pin)
File "/usr/local/lib/python3.9/site-packages/gpiodevice/errors.py", line 45, in wrapper
errors.append(next(i))
File "/usr/local/lib/python3.9/site-packages/gpiodevice/__init__.py", line 122, in find_chip_by_pins
offset = chip.line_offset_from_id(pin_id)
File "/usr/local/lib/python3.9/site-packages/gpiod/chip.py", line 131, in line_offset_from_id
return self._chip.line_offset_from_id(id)
TypeError: argument 1 must be str, not LineRequest
Would it be easier if I just upgraded my OS?
I just re-installed and am on Rasbian 12 and this works correctly again. Thanks!