bencorrado / pmsensor Goto Github PK

Hi
I'm not sure if this is an issue...

In Home Assistant I get such results for PM25:

No idea why.

PM10 looks ok:

Is there any chance to rule out outliers? Is this a bug? I'll restart HASS and report back if the problem persists or not.

Thanks for your great work anyways! Cheers!

When an error occurs raising an exception is more appropriate than returning None.

Hi,
What is the unit for sensor output.

Date_Time | PM1 | PM2.5 | PM10
2019/02/13 12:52:09 | 386 | 1142 | 1267

I am mgetting this kind of output.

Thankyou.

This is a feature request, but since particulate matter sensors have a limited lifespan, it would be nice if this library provided the option to put the sensor into and bring it out of sleep mode.

e.g. the SDS011 sensor has a laser diode service life of up to 8,000 hours:
https://nettigo.pl/attachments/398

I am looking for the owner of this repo or the pmsensor at PiPy listed as openha. I would like to help take over this project and update it for additional pm sensors. There are two waiting PRs (#13 #15) and there has been no activity for years. I would be happy to help take over, if you are the owner please contact me.

@usul27 you appear to be involved in all the @open-homeautomation repos, is this your account and/or could you help here? Or anyone at @hifiberry that happens to know Daniel as his GitHub account does not seem very active.

Hi,

running on VirtualBox Ubuntu 16.04 LTS 32 bit VM (Windows 10 host) I share a USB-Serial converter into the virtual machine.

The device itself appears like this:
$ sudo lsusb
Bus 001 Device 017: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter

And is apparently present at:
/dev/ttyUSB0

I get the following error in python when I run the co2_demo.py (where I point it to ttyUSB0 instead of the example device from the original file):

Traceback (most recent call last):
File "co2_demo.py", line 10, in
ppm = co2sensor.read_mh_z19("/dev/ttyUSB0")
File "/srv/co2/pmsensor/pmsensor/co2sensor.py", line 16, in read_mh_z19
result = read_mh_z19_with_temperature(serial_device)
File "/srv/co2/pmsensor/pmsensor/co2sensor.py", line 47, in read_mh_z19_with_temperature
if ser.inWaiting() > 0:
File "/usr/lib/python2.7/dist-packages/serial/serialutil.py", line 538, in inWaiting
return self.in_waiting
File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line 464, in in_waiting
s = fcntl.ioctl(self.fd, TIOCINQ, TIOCM_zero_str)
IOError: [Errno 5] Input/output error

The kernel log does not contain any errors, but the syslog has the following relevant events:
usb 1-2: new full-speed USB device number 17 using ohci-pci
usb 1-2: New USB device found, idVendor=1a86, idProduct=7523
usb 1-2: New USB device strings: Mfr=0, Product=2, SerialNumber=0
usb 1-2: Product: USB2.0-Serial
ch341 1-2:1.0: ch341-uart converter detected
usb 1-2: ch341-uart converter now attached to ttyUSB0
usb 1-2: USB disconnect, device number 17
usb 1-2: ch341_read_int_callback - usb_submit_urb failed: -19
ch341-uart ttyUSB0: ch341-uart converter now disconnected from ttyUSB0
ch341 1-2:1.0: device disconnected

Is this a config issue, a software issue, missing package issue or a driver issue?

Any ideas about what is wrong?

Best regards,
Remi

Hi.
MH-Z19B and MH-Z1C CO2 sensor has, for example, option to turn on/off auto calibration.
Would be great to add it to pmsensor/co2sensor.py.
mh-z19b-co2-ver1_0.pdf
mh-z19c-pins-type-co2-manual-ver1_0.pdf

Hi. i am new to home assistant. i have been trying using pms5003 in my setup. However, home assistant unable to fetch data from sensor.

it is like:
2017-05-20 13:56:36 ERROR (Thread-9) [homeassistant.components.sensor.serial_pm] Could not read PM10 value
2017-05-20 13:56:38 ERROR (Thread-4) [pmsensor.serial_pm] read timeout after 2 seconds, read 0 bytes
2017-05-20 13:56:38 ERROR (Thread-4) [homeassistant.components.sensor.serial_pm] Could not read PM1 value
2017-05-20 13:56:40 ERROR (Thread-1) [pmsensor.serial_pm] read timeout after 2 seconds, read 0 bytes

Is there anything wrong with the code? Thanks