<< return to Pixycam.com

USB not detected at all

Pixy Software
#6

Sorry for your troubles, stranger.

Just to verify, you pressed the button down after powering it, correct? And have you tried other USB ports on your machine?

If the “tested ok” sticker is on there, then it had to have passed our inspection and software tests before leaving the production line. Something must have been damaged during packing or shipping.

Thanks.

Scott

#7

Hi Wee Keat,

Please try the new Mac build “here”:https://drive.google.com/file/d/0B9hNWd6bDWpiWTFwOHBYSHBlWmc.

Have you seen the instructions for uploading firmware “here”:http://cmucam.org/projects/cmucam5/wiki/Uploading_New_Firmware?

Hope this helps.

Scott

#8

Hi Scott,

Thanks for getting back to us.

I’ve already tried the new Mac build. Found it while going through the forum threads.
I’ve also used the older build just in case - no go either. It always says “error: No Pixy devices have been detected.”

Not sure if I can even update the firmware if PixyMon is not detecting it at all?

#9

Hi Wee Keat,

What exactly happens when you plug in Pixy in DFU mode (hold down the white button as you’re connecting it to USB)?

Thanks.

Scott

#10

Hi Scott,

Thank you for your response once again!

Well I tried different USB-ports, cables and even different PCs and MACs before starting to debug it by myself with a multimeter.

The result of my debugging efforts were that there are no 3.3V available on the board. Analyzing the schematics the button you mentioned should rise voltage level from LOW to HiGh (3.3V) on a GPIO of the LPC. I tried to validate this and measured that there are no 3.3V available at the input of the button. I was unsure and checked it against the 3.3V pin at the 4pin serial debug port. Again no 3.3V. The same result at the output pin of the power regulator.

I’m a kickstarter early bird and very sad as it took a month for shipping it to Germany and get it through customs.

I will contact [email protected] with a link to our communication.

Thank you,
Marco

#11

Hi Scott,

When I plug Pixy into DFU mode, the LED turns bright white, constant as described in your firmware update doc.

I then fired up PixyMon (0.1.48):

  • PixyMon’s log pane showed “error: No Pixy devices have been detected.”
  • Pixy’s LED still in constant bright white

As I mentioned before, it seems like it’s not detected even at USB level as it doesn’t show up in my USB profile.

What can I try next?

#12

Im haveing the same problem. I get a bright light and servo twitch when plugging in and am able to cycle through the led colours but no matter what usb cable I try and uninstalling and trying diffrent installs I cant get it to work :’( waaaaaa

#13

Hi Shayn Smith,
It sounds like you’ve tried different cables(?)

Have you tried (for debugging purposes) to unplug the servos from Pixy?
What about trying (also for debugging purposes) using different USB ports on your computer?

thanks!

#14

Hi there,

Any assistance on what I should do next? I’d really love to get this started.

Much appreciated.

Thanks.

#15

ugh. “The new Mac build”…

This is the “new new Mac build”, version 0.1.49 :slight_smile:

https://drive.google.com/file/d/0B9hNWd6bDWpiR0FMOUJjNDU5TE0

Mr. Wee Keat Chin, please give this a try. This version tweaks the enumeration of the DFU device and I expect it to fix your issue (fingers crossed).

thanks!

#16

Hi Rich,

Thanks for getting back to me. I left my Pixy at home - at work now. :frowning:

Will try it out as soon as I get home.

QUESTION:
I’m on Mac OS X - should any device show up in my USB tree when I plug Pixy in? See attached screenshot.

Thanks again.

#17

Thank you for the quick reply. Yes Ive tried diffrent usb slots and cables. Ive tryed removing the servos as well as switching them just in case. My task bar tells me pixy is working but pixymon program wont pick it up. Ps I love the purle Dyno for the program! If I get an arduino do you think that will help me? Is the Uno the best to get? Also I will try on a mac when I can to see if I can get anywhere to try and reduse what the problem could be. Ill also purchuse a new mini usb cable. What should I be looking for for compatibility?

#18

Also I tried running it with the servos detatched.

#19

Shayn I’m sending you an email… two parallel threads are hard to parse.

#20

Hi Rich, Scott,

Just tried it. Again - it says “error: No Pixy devices have been detected.”

Can I just re-iterate what I said before:
MY MAC’S USB DEVICE TREE DID NOT DETECT PIXY.

  1. When I plug in my Nexus, my USB devices shows ‘Nexus’ being connected. Please refer to attachment “nexus.png”
  2. When I plug in my Pixy, my USB devices shows NOTHING. Please refer to attachment “pixy.png”

Again, we keep looking at the software. But how can the software (PixyMon) connect to Pixy when Mac’s USB can’t even detect it?

==== Previous notes =====

When I power up the Pixy via USB and hold on the white button, Pixy does cycle the LED colors. So, it seems Pixy is functioning fine on its own. Something has gone wrong on the USB side of things.

#21

Hi Wee Keat Chin,
We’re going to handle your case via email. PixyMon 0.1.49 has fixed the same issue for several Mac users. Your problem sounded exactly the same, so we skipped some information-gathering steps.

You’re right— you should be able to see Pixy in the System Profiler:

!http://i74.photobucket.com/albums/i241/cmucam/ScreenShot2014-04-29at91442AM_zps74fb81a5.png!

(Note, this is what you see when Pixymon is running. When PixyMon isn’t running, it looks the same except the “current required” isn’t configured.)

#22

Just following up on this, in my case, I’ve finally got it working!

Believe or not, it’s actually my USB cable. Bought a brand new one to eliminate that as a possibility and as soon as I plugged it in with the new cable, Pixy showed up in my USB devices.

Thanks!

#23

Please take a if your old cable was a 4pin instead of a 5pin variant. I guess that it is the solution for most cable related problems in this forum. (But not for my problem, unfortunately!)

#24

Have purchased a different USB. The servos spazzed out and tried to push past normal point so I unplugged it straight away. I then tried with the old USB to use on a mac and could get it to work, yay! But I can’t get it to work on my PC :frowning: sad. Do you have any tips? Ps I didn’t receive an email so I’ll just continue on here if you don’t mind.

#25

Shayn-- check your email! I’ve sent 2 messages! (spam?)

Regarding your PC, do you have a Renesas host controller? Bring up the Device Manager and take a look:

!http://i74.photobucket.com/albums/i241/cmucam/Image001_zps904633ef.jpg!

If you do, you may need to update the driver (you need version version 2.1.16.0 or later or Pixy won’t work!) You can download a recent version here:

This has fixed several PCs with communications problems so far. :slight_smile: (Took a while to track down!)