Comments (9)
ap--
commented on June 24, 2024
So according to the datasheet the NIR256 has the product ID 0x1010 and if I understand you correctly you created an inf file for the NIR256 so that it uses the pyusb compatible windows-driver.
So if you did this the correctly you should be able to run:
import usb.core
list(usb.core.find(idVendor=0x2457, idProduct=0x1010, find_all=True))and it should find the Device.
If it finds it:
make a pull request with your changes to pyseabreeze and I'll have a look at your code changes.
If it doesn't:
search for tutorials online on how to use pyusb with a usb device on windows, and try to install the correct driver for your spectrometer.
Good luck
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anffray
commented on June 24, 2024
Hi !
The device is now well detected by the pc as the code lines you gave me print this on the spyder console :
[<DEVICE ID 2457:1010 on Bus 000 Address 001>]
But the seabreeze's list_devices() is still empty unfortunately...:/
I will make a pull request, I hope you will find the errors...
Thanks !
edit : I am new to github, so I did a pull request but somehow it is a pull request on a fork of this project but on my profile, I don't know if it is what you expected...
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ap--
commented on June 24, 2024
hmm...
can you report the output of:
import seabreeze.pyseabreeze.interfaces.defines as sbdef
print sbdef.ProductIdsfrom python-seabreeze.
anffray
commented on June 24, 2024
This is what I get : [4160, 8192, 4098, 4164, 4166, 4134, 4136, 4106, 4140, 4130, 16384, 4112, 4114, 20480, 4116, 4118, 4120, 16388, 4138, 4126]
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ap--
commented on June 24, 2024
Hey @anffray,
sorry for the late reply. I can't really see an issue with your code (although I might miss something. It's hard to debug without the hardware)
one more thing you could try is:
import usb.core
from seabreeze.pyseabreeze.interfaces import NIR256
import numpy as np
dev, = list(usb.core.find(idVendor=0x2457, idProduct=0x1010, find_all=True))
s = NIR256()
s.open_device(dev)
N = s.get_formatted_spectrum_length()
arr = np.zeros((N,))
s.get_formatted_spectrum(arr)
print arrfrom python-seabreeze.
anffray
commented on June 24, 2024
Thank you !
So I tried this and with my NIR I got :
Traceback (most recent call last):
File "C:\ProgramData\Anaconda2\lib\site-packages\seabreeze\pyseabreeze\interfaces\common.py", line 14, in decorated_func
return func(*args, **kwargs)
File "C:\ProgramData\Anaconda2\lib\site-packages\seabreeze\pyseabreeze\interfaces\spectrometer.py", line 139, in get_formatted_spectrum
out[:] = ret * self._NORMALIZATION_VALUE
AttributeError: 'NIR256' object has no attribute '_NORMALIZATION_VALUE'
With another try I got this and I have the same SeabreezeError with a HR4000 :
Traceback (most recent call last):
File "<ipython-input-2-4c110a6164d0>", line 1, in <module>
runfile('C:/Users/AAA/Desktop/testscript.py', wdir='C:/Users/AAA/Desktop')
File "C:\ProgramData\Anaconda2\lib\site-packages\spyder\utils\site\sitecustomize.py", line 866, in runfile
execfile(filename, namespace)
File "C:\ProgramData\Anaconda2\lib\site-packages\spyder\utils\site\sitecustomize.py", line 87, in execfile
exec(compile(scripttext, filename, 'exec'), glob, loc)
File "C:/Users/AAA/Desktop/testscript.py", line 19, in <module>
s.get_formatted_spectrum(arr)
File "C:\ProgramData\Anaconda2\lib\site-packages\seabreeze\pyseabreeze\interfaces\common.py", line 23, in decorated_func
raise SeaBreezeError(msg)
SeaBreezeError: Error while reading raw spectrum
I don't really know where these errors come from...
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ap--
commented on June 24, 2024
Sorry, my mistake:
import usb.core
from seabreeze.pyseabreeze.interfaces import NIR256
import numpy as np
dev, = list(usb.core.find(idVendor=0x2457, idProduct=0x1010, find_all=True))
s = NIR256()
s.open_device(dev)
# < ADDED THE FOLLOWING LINES
s.usb_send(struct.pack('<B', 0x01))
time.sleep(0.1)
s._initialize_common()
# />
N = s.get_formatted_spectrum_length()
arr = np.zeros((N,))
s.get_formatted_spectrum(arr)
print arr
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anffray
commented on June 24, 2024
So it gave this to me :
[ 0. 912. 514. 722. 1294. 278. 1394. 3941. 1367. 1373.
694. 1298. 314. 2826. 2663. 1728. 1446. 541. 3092. 1747.
3734. 1239. 2302. 39. 3568. 387. 27. 3894. 1794. 267.
1758. 3912. 2184. 2085. 3932. 3620. 3648. 906. 2784. 3771.
1579. 3210. 2536. 3468. 1718. 3094. 1653. 586. 2147. 2120.
426. 1718. 393. 4054. 1166. 702. 671. 3955. 94. 592.
1566. 691. 1162. 2604. 3366. 727. 1231. 1730. 3918. 1658.
340. 350. 1998. 266. 3234. 472. 3748. 132. 2589. 884.
3334. 2798. 1059. 3424. 514. 491. 795. 2895. 1372. 2338.
1516. 496. 2174. 3714. 1250. 3989. 2547. 873. 2766. 1470.
3237. 1430. 3870. 246. 2984. 2959. 4052. 1994. 2315. 3866.
2278. 2172. 3796. 3195. 278. 1888. 3990. 3200. 1287. 660.
3877. 502. 1336. 133. 887. 3316. 1643. 3402. 754. 4067.
3177. 3970. 231. 2286. 629. 914. 3066. 834. 2642. 2806.
368. 3588. 3902. 1606. 1630. 2831. 1665. 2031. 3770. 3244.
916. 1180. 1284. 3114. 512. 2386. 2246. 2694. 1244. 2819.
2214. 2442. 4091. 3848. 1002. 495. 681. 2404. 36. 2116.
6. 2363. 2034. 3678. 3126. 1482. 3183. 2142. 3646. 422.
2084. 95. 442. 1662. 2154. 3870. 836. 3255. 910. 3866.
1972. 2176. 1429. 2562. 3596. 2902. 1998. 3360. 2494. 1130.
2258. 775. 2726. 1075. 922. 1270. 3619. 130. 3868. 62.
2447. 2830. 2719. 3909. 62. 1582. 1011. 1258. 2091. 2107.
360. 3579. 2564. 3761. 2290. 3426. 618. 788. 4070. 2082.
3978. 705. 1371. 1630. 3290. 1977. 2319. 2386. 218. 116.
3852. 3882. 3423. 2779. 622. 2714. 4095. 1799. 3891. 2074.
94. 748. 3266. 2743. 3694. 3247.]
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ap--
commented on June 24, 2024
Well looks like you're getting closer to a working implementation for your spectrometer model 👍
If this does not look like a spectrum, when you plot it, try using get_unformatted_spectrum_length and get_unformatted_spectrum record one spectrum with the light blocked, and one with the spectrometer saturated. Then you can try to reverse engineer the bitpattern for this spectrometer.
Look at the different implementations of get_formatted_spectrum in pyseabreeze to get a feeling for how to reconstruct the spectra. Most of them are just a bit of byte shuffling to reconstruct the words per pixel and then maybe an XOR for some of the higher bits.
And look at the spectrometer class in seabreeze to see how to use the lower level interface directly.
Here's the example for how to query the wavelength array (which I would try next, in your case) https://github.com/ap--/python-seabreeze/blob/master/seabreeze/spectrometers.py#L112-L118
Keep up the good work 🏅
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