Hey,
i just received a TEMPer2 and a TEMPerGold device, and both are identified by the same USB ids: 1a86:e025 which means it's not really useful to select a device using its id. Maybe it'd make sense to select by name or something like that?

temper.py -l
Bus 001 Dev 009 1130:660c   PCsensor Temper ['hidraw1', 'hidraw2']

When running ./temper.py receive the following traceback:

root@john-desktop:/home/john/temper/pcsensor-temper# python3 /usr/local/lib/python3.9/dist-packages/temper.py --force 1130:660c --verbose
Firmware query: b'0186ff0100000000'
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/dist-packages/temper.py", line 436, in <module>
    main()
  File "/usr/local/lib/python3.9/dist-packages/temper.py", line 433, in main
    sys.exit(temper.main())
  File "/usr/local/lib/python3.9/dist-packages/temper.py", line 426, in main
    results = self.read(args.verbose)
  File "/usr/local/lib/python3.9/dist-packages/temper.py", line 343, in read
    results.append({ **info, **usbread.read() })
  File "/usr/local/lib/python3.9/dist-packages/temper.py", line 270, in read
    return self._read_hidraw(self.device)
  File "/usr/local/lib/python3.9/dist-packages/temper.py", line 178, in _read_hidraw
    firmware = self._read_hidraw_firmware(fd, self.verbose)
  File "/usr/local/lib/python3.9/dist-packages/temper.py", line 158, in _read_hidraw_firmware
    raise RuntimeError('Cannot read device firmware identifier')
RuntimeError: Cannot read device firmware identifier

Hi everyone, thanks for the work for adding support for Linux for the PC sensors.

My PC sensor, I just bough, has a humidity and temperature sensor with a black serial cable that connects to the sticks. I also has a red button with TXT written on it as well temperature range.

Running ./temper.py -l I get

Bus 001 Dev 001 1d6b:0002   xHCI Host Controller ['hidraw1', 'hidraw2', 'hidraw3', 'hidraw4', 'hidraw5']
Bus 001 Dev 004 04ca:3016    
Bus 001 Dev 005 1bcf:2ca0   HD WebCam 
Bus 001 Dev 011 093a:2510   USB Optical Mouse ['hidraw1']
Bus 001 Dev 024 03f0:034a   HP Elite USB Keyboard ['hidraw2', 'hidraw3']
Bus 001 Dev 027 3553:a001   TEMPer2 ['hidraw4', 'hidraw5']
Bus 002 Dev 001 1d6b:0003   xHCI Host Controller 

But ./temper.py doesn give any ouput.
I tried sudo ./temper.py --force 3553:a001 and I got:

Bus 001 Dev 027 3553:a001 TEMPer2_V4.1 Error: Unknown firmware TEMPer2_V4.1: b'80800bf64e200000'

Can anyone give me a hint in how to add support to this new version. Then I will gladly make a PR for that.

Thanks a lot

Hi,

I'm getting this message:
Bus 001 Dev 006 1a86:e025 TEMPerHUM_V3.9 Error: Unknown firmware TEMPerHUM_V3.9: b'8020096d18d80000'

any idea?

EDIT: has nothing to do with a kernel update. It never worked

I have installed and used the Pypi package 'temper_py' in the Jetson J3010 device, to read the sensor (PCSensor: TEMPER1F V4.1) values.
This sensor is connected through USB HUB. When running the program, it raised a firmware compatibility issue, Please instruct us to avoid this.
Here I attached screenshots for your reference.

Recently purchased two new sensors. They now have a version identified as "TEMPerGold_V3.3". Was able to modify my local version of temper.py to get it to identify and read temperature data. Thanks.

Hello,
I am trying to use this script with new Temper2 usb key (https://thepihut.com/products/temper2-usb-dual-temperature-sensor)

After runing setup when I try to run

:/tmp/temper# python temper.py --verbose --json
[]

I am using raspberry pi and usb is detected as bellow.

:/tmp/temper# lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 3553:a001 PCsensor TEMPer2
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

:/tmp/temper# python temper.py -l
Bus 001 Dev 001 1d6b:0002 xHCI Host Controller
Bus 001 Dev 002 2109:3431 USB2.0 Hub
Bus 001 Dev 003 3553:a001 TEMPer2
Bus 002 Dev 001 1d6b:0003 xHCI Host Controller

I also tried to add

if vendorid == 0x3553 and productid == 0xa001:
return True

to temper.py and then it returns

:/tmp/temper# python temper.py --verbose --json
[
{
"vendorid": 13651,
"productid": 40961,
"manufacturer": "PCsensor",
"product": "TEMPer2",
"busnum": 1,
"devnum": 3,
"devices": [],
"port": "1-1.1",
"error": "no hid/tty devices available"
}
]

what am I doing wrong?

Hi, I noticed I sometime get the same temperature reading for multiple hours using TEMPER2 external sensor:

I'm unsure if it's something in the firmware or in the way it's queried with Python. It looks a bit like that “old” issue in a different project: padelt/temper-python#61

Not sure there's anything which can be done at the software level but in case some other people experience that and/or have a workaround, I'd be interested.

Hi, it seems I have a slightly different model, mis-matched USB ID too?... I'm afraid I'm not too familiar with python, but I'm very happy to try to help... I see there was a guy with TEMPerGold_V3.3 who got it working, but no PR as yet... I guess they are probably related versions? Physically, it is the metal device with the thermometer printed on it.

root@trinity:/home/james# python3 temper.py --json
[
{
"vendorid": 6790,
"productid": 57381,
"manufacturer": "PCsensor",
"product": "TEMPerGold",
"busnum": 1,
"devnum": 12,
"devices": [
"hidraw6",
"hidraw7"
],
"port": "1-5.1",
"firmware": "TEMPerGold_V3.4",
"hex_firmware": "54454d506572476f6c645f56332e3420",
"hex_data": "80800c674e200000",
"error": "Unknown firmware TEMPerGold_V3.4: b'80800c674e200000'"
}
]

Bus 001 Dev 012 1a86:e025 * TEMPerGold ['hidraw6', 'hidraw7']

I bought two TEMPerX232 (V2.5) USB devices and they appear to work fine, but their temp difference is often off by 1.5 degrees between each other:

$ sudo ./temper.py
Bus 002 Dev 014 1a86:5523 TEMPerX232_V2.5 25.10C 77.18F 37% - - -
Bus 002 Dev 015 1a86:5523 TEMPerX232_V2.5 26.29C 79.32F 37% - - -

Is there a way to define an offset for one or both the cards so the readings are closer to reality?

Sorry for a total newbee question but why do I need SU rights to run this script? Without SUDO i get an permission denied error

I have been looking at the code and noticed that its was using select is an odd way.
The oddity is that the fd is not set O_NONBLOCK.

The end result of using O_NONBLOCK is that the code will report the temperatures as soon the sensor reports them.
Takes 0.386s vs the old code taking 0.558s. Tested with a TEMPer2.

If you are interest in my refactors let me know and I will raise a PR.

My refactor is in barry-scott@772d8c0.

Testers Needed

• TEMPer 0c45:7401 TEMPerF1.4 I Metal
• TEMPer 413d:2107 TEMPerGold_V3.1 I Metal
• TEMPerHUM 413d:2107 TEMPerX_V3.1 I I White plastic
• TEMPer2 413d:2107 TEMPerX_V3.3 I,E White plastic
• TEMPer2 1a86:e025 TEMPer2_V3.7 I,E White plastic with red button
• TEMPer1F 413d:2107 TEMPerX_V3.3 E White plastic
• TEMPerX232 1a86:5523 TEMPerX232_V2.0 I,E I White plastic
• TEMPer1V1.1 0c45:7401 TEMPer1F1.1Per1F E Metal

Tests Passing

• TEMPer 0c45:7401 TEMPerF1.4 I Metal
• TEMPer 413d:2107 TEMPerGold_V3.1 I Metal
• TEMPerHUM 413d:2107 TEMPerX_V3.1 I I White plastic
• TEMPer2 413d:2107 TEMPerX_V3.3 I,E White plastic
• TEMPer2 1a86:e025 TEMPer2_V3.7 I,E White plastic with red button
• TEMPer1F 413d:2107 TEMPerX_V3.3 E White plastic
• TEMPerX232 1a86:5523 TEMPerX232_V2.0 I,E I White plastic
• TEMPer1V1.1 0c45:7401 TEMPer1F1.1Per1F E Metal

Hello,
on raspberry PI, the response I have is:
sudo python ./temper.py
Traceback (most recent call last):
File "/home/admin/scripts/./temper.py", line 472, in
main()
File "/home/admin/scripts/./temper.py", line 469, in main
sys.exit(temper.main())
^^^^^^^^^^^^^
File "/home/admin/scripts/./temper.py", line 462, in main
results = self.read(args.verbose)
^^^^^^^^^^^^^^^^^^^^^^^
File "/home/admin/scripts/./temper.py", line 379, in read
results.append({ **info, **usbread.read() })
^^^^^^^^^^^^^^
File "/home/admin/scripts/./temper.py", line 304, in read
return self._read_hidraw(self.device)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/admin/scripts/./temper.py", line 181, in _read_hidraw
firmware = self._read_hidraw_firmware(fd, self.verbose)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/admin/scripts/./temper.py", line 149, in _read_hidraw_firmware
os.write(fd, query)
BrokenPipeError: [Errno 32] Broken pipe

and the response if requesting a --list is
sudo python ./temper.py --list
Bus 001 Dev 001 1d6b:0002 xHCI Host Controller ['hidraw0']
Bus 001 Dev 002 2109:3431 USB2.0 Hub ['hidraw0']
Bus 001 Dev 003 1a86:e025 * TEMPerX232 ['hidraw0']
Bus 002 Dev 001 1d6b:0003 xHCI Host Controller
Bus 002 Dev 012 1058:107c Elements 107C

not sure why. Thanks for your kind support

Hi,

To make this device work, I modified:

if info['firmware'][:12] in [ 'TEMPerX_V3.1', 'TEMPerX_V3.3', 'TEMPer2_V3.9' ]:

to include the V3.9 version, and:

if vendorid == 0x1a86 and productid == 0xe025:
return True

to recognise the corresponding USB id (1a86:e025).

This trick works for temperature, but not for humidity:

Bus 001 Dev 031 1a86:e025 TEMPer2_V3.9 28.93C 84.07F - - - -

is it possible to add full compatibility for this device? can I help in any way?

Thanks in advance

Hello,
thanks for your Open Source software.

it lists nicely

/temper.py -l
Bus 001 Dev 003 3553:a001 TEMPer2 ['hidraw1', 'hidraw2']

./temper.py --json
[]

but then

/temper.py --force 3553:a001
Bus 001 Dev 003 3553:a001 TEMPer2_V4.1 Error: Unknown firmware TEMPer2_V4.1: b'808009e94e200000800109084e200000'

PS: WHY IS IT SO HARD TO GET GNU LINUX TALK TO A THERMOMETER?
(it would probably easier to build an https://duckduckgo.com/?t=ffab&q=arduino+weather+station)

1a86:e025 TEMPerGold_V3.3 appears to have been skipped :)