How to connect the Monsoon to the computer and check the connection is correct?

[sf-wind]

In the python manual, there is no mention how the monsoon monitor to be connected to the computer and how to verify the connection is correct.

I just connected the USB port from the back of the HV power monitor to the usb port of the laptop. Then I run the following python commands in sequence:

import monsoon.HVPM as HVPM import monsoon.sampleEngine as sampleEngine import monsoon.Operations as op Mon = LVPM.Monsoon() Mon.setup_usb()

But after the last command, I get error:

Traceback (most recent call last): File "", line 1, in File "/Library/Python/2.7/site-packages/monsoon-0.1.62-py2.7.egg/monsoon/HVPM.py", line 46, in setup_usb DEVICE = usb.core.find(idVendor=0x2AB9, idProduct=0x0001) File "build/bdist.macosx-10.12-intel/egg/usb/core.py", line 1263, in find usb.core.NoBackendError: No backend available

It seems the USB is not connected correctly.

How to identify the issue? Thanks

[andydonzelli]

I was seeing the same error messages. I fixed it by installing libusb with homebrew. pip doesn't appear to install it correctly. brew install libusb

[nniranjhana]

Thank you @andydonzelli!