Launchpad Classic being detected as Launchpad Pro

[nimaid]

Several users of my program which uses launchpad.py have reported their Launchpad Classic being detected as a Pro, thereby causing major issues. This only appears to happen to some Launchpads.

Here is a picture of one of the offending devices Here is the sticker on the back

And here is a test program which encapsulates the Launchpad detection code in my program:

try:
    import launchpad_py as launchpad
except ImportError:
    try:
        import launchpad
    except ImportError:
        sys.exit("[LPHK] Error loading launchpad.py")

lp = launchpad.Launchpad()

if lp.Check( 0, "mk2" ):
    lp = launchpad.LaunchpadMk2()
    if lp.Open( 0, "mk2" ):
        print('Connected to MkII! Yay!')
    else:
        raise Exception('MkII detected, but connection failed!')
elif lp.Check( 0, "pro" ):
    lp = launchpad.LaunchpadPro()
    if lp.Open( 0, "pro" ):
        print('Connected to Pro! Yay!')
    else:
        raise Exception('Pro detected, but connection failed!')
elif lp.Check( 0, "control xl" ) or lp.Check( 0, "launchkey" ) or lp.Check( 0, "dicer" ):
    raise Exception('Unsupported device detected!')
elif lp.Check():
    if lp.Open():
        print('Connected to Classic/Mini/S! Yay!')
    else:
        raise Exception('Classic/Mini/S detected, but connection failed!')
else:
    raise Exception('Launchpad appears to be unplugged!')

input("Press Enter to exit...")

This returns "Connected to Pro! Yay!" in the situations described above.

While I personally do not own a device that is incorrectly detected, I have a user on Discord who does and is eager to provide any additional info that may help you resolve this issue. Thank you for your hard work on this fantastic project!

[FMMT666]

The Launchpads are identified by their names. Please see method "Open()" in "Readme.md". They also can be overridden.

You can check the name of the attached devices with

lp = launchpad.Launchpad()
lp.ListAll()

Example output ("Mini" on a Mac):

('CoreMIDI', 'Launchpad Mini', 1, 0, 0)
('CoreMIDI', 'Launchpad Mini', 0, 1, 0)

Could you post the results here?

[nimaid]

Here is the output of that command, run by a user on Discord:

pygame 1.9.6
Hello from the pygame community. https://www.pygame.org/contribute.html
(b'MMSystem', b'Microsoft MIDI Mapper', 0, 1, 0)
(b'MMSystem', b'Mbox Pro External', 1, 0, 0)
(b'MMSystem', b'Mbox Pro Control', 1, 0, 0)
(b'MMSystem', b'2- Launchpad', 1, 0, 0)
(b'MMSystem', b'Microsoft GS Wavetable Synth', 0, 1, 0)
(b'MMSystem', b'Mbox Pro External', 0, 1, 0)
(b'MMSystem', b'Mbox Pro Control', 0, 1, 0)
(b'MMSystem', b'2- Launchpad', 0, 1, 0)

Please let me know if you need anything else to help resolve this issue.

[nimaid]

I resolved this. Here is how I fixed my detection method:

lp = launchpad.Launchpad()

if lp.Check( 0, "Launchpad MK2" ):
    lp = launchpad.LaunchpadMk2()
    if lp.Open( 0, "Launchpad MK2" ):
        print('Connected to MkII! Yay!')
    else:
        raise Exception('MkII detected, but connection failed!')
elif lp.Check( 0, "Launchpad Pro" ):
    lp = launchpad.LaunchpadPro()
    if lp.Open( 0, "Launchpad Pro" ):
        print('Connected to Pro! Yay!')
    else:
        raise Exception('Pro detected, but connection failed!')
elif lp.Check( 0, "control xl" ) or lp.Check( 0, "launchkey" ) or lp.Check( 0, "dicer" ):
    raise Exception('Unsupported device detected!')
elif lp.Check():
    if lp.Open():
        print('Connected to Classic/Mini/S! Yay!')
    else:
        raise Exception('Classic/Mini/S detected, but connection failed!')
else:
    raise Exception('Launchpad appears to be unplugged!')

[FMMT666]

Yep, maybe just looking for "Pro" was a baaad idea. Guess I will change that. Thx for reporting.