Hey there,
Got a Gemma and a neopixel! First thing I did was try to make the Hoop Earrings, so I wired it up as per http://learn.adafruit.com/gemma-hoop-ea ... it-diagram.
After that didn't work I thought I might start simpler. So I got the Gemma to blink the onboard led to make sure I could to that. Then attempted to run the strandtest example, but to no avail. I will chuck some pics in below.
http://i.imgur.com/6PzSF5j.jpg
http://imgur.com/0sqiukZ.jpg
I don't have a power pack for it yet, so at the moment I am running it off a portable usb charger battery thing.
I have been playing around with it for hours now, but cant get it going. If anyone has any recommendations please let me know.
Cheers
Having problems getting my neopixel ring up and running
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Please be positive and constructive with your questions and comments.
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- adafruit_support_bill
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Re: Having problems getting my neopixel ring up and running
Do the neopixels light up at all?
Can't see much detail in the photos. Try outside or near a window for more light.
Can't see much detail in the photos. Try outside or near a window for more light.
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Re: Having problems getting my neopixel ring up and running
A few flash sometimes when i plug the usb cable into Gemma, otherwise none at all when I actually run the program. Is there an even simpler way to test the neopixel ring?
I know my soldering is a bit iffy, but I checked all the connections with a multimeter. Here are some more pictures of what I have set up.
http://i.imgur.com/wdXjD15.jpg
http://i.imgur.com/kdt7sLz.jpg
http://i.imgur.com/m03IEkQ.jpg
http://i.imgur.com/uSNl7GD.jpg
I know my soldering is a bit iffy, but I checked all the connections with a multimeter. Here are some more pictures of what I have set up.
http://i.imgur.com/wdXjD15.jpg
http://i.imgur.com/kdt7sLz.jpg
http://i.imgur.com/m03IEkQ.jpg
http://i.imgur.com/uSNl7GD.jpg
- adafruit_support_bill
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Re: Having problems getting my neopixel ring up and running
Much better photos, thanks. I don't see any real problems with the soldering.
What exactly are you using? What voltage are you getting on the Gemma's Vout pin?I don't have a power pack for it yet, so at the moment I am running it off a portable usb charger battery thing.
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Re: Having problems getting my neopixel ring up and running
I am getting 4.8V on Gemmas Vout.
Also I am using one of these http://www.thinkcomputers.org/reviews/c ... fort/4.jpg, sorry couldn't find a better picture. It is Choiix 5600mAh USB battery pack.
Also I am using one of these http://www.thinkcomputers.org/reviews/c ... fort/4.jpg, sorry couldn't find a better picture. It is Choiix 5600mAh USB battery pack.
- adafruit_support_bill
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Re: Having problems getting my neopixel ring up and running
That supply should be OK. Looking closer at your VOUT connection, it looks like it might be a cold-joint. Re-flow that one until it is smooth any shiny.
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Re: Having problems getting my neopixel ring up and running
http://i.imgur.com/qMcW5LO.jpg
Done, but it didn't change anything. Is there any simple way to test the neopixel ring? Rather than running the test code in the Adafruit_NeoPixel library
Done, but it didn't change anything. Is there any simple way to test the neopixel ring? Rather than running the test code in the Adafruit_NeoPixel library
- adafruit_support_bill
- Posts: 88154
- Joined: Sat Feb 07, 2009 10:11 am
Re: Having problems getting my neopixel ring up and running
No. You need a microcontroller of some kind to send it precisely timed control signals. There is no 'manual' test.Is there any simple way to test the neopixel ring? Rather than running the test code in the Adafruit_NeoPixel library
It appears that you have everything connected correctly. If you contact [email protected] with a link to this thread we can send you a replacement ring.
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- Joined: Mon Nov 18, 2013 5:37 am
Re: Having problems getting my neopixel ring up and running
Done, thanks for your help.
Please be positive and constructive with your questions and comments.