element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • Community Hub
    Community Hub
    • What's New on element14
    • Feedback and Support
    • Benefits of Membership
    • Personal Blogs
    • Members Area
    • Achievement Levels
  • Learn
    Learn
    • Ask an Expert
    • eBooks
    • element14 presents
    • Learning Center
    • Tech Spotlight
    • STEM Academy
    • Webinars, Training and Events
    • Learning Groups
  • Technologies
    Technologies
    • 3D Printing
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • Technology Groups
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents Projects
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • Project Groups
  • Products
    Products
    • Arduino
    • Avnet & Tria Boards Community
    • Dev Tools
    • Manufacturers
    • Multicomp Pro
    • Product Groups
    • Raspberry Pi
    • RoadTests & Reviews
  • About Us
  • Store
    Store
    • Visit Your Store
    • Choose another store...
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      • Japan
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      • Vietnam
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
  • Settings
Raspberry Pi
  • Products
  • More
Raspberry Pi
Raspberry Pi Forum Square in the corner
  • Blog
  • Forum
  • Documents
  • Quiz
  • Events
  • Polls
  • Files
  • Members
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
Join Raspberry Pi to participate - click to join for free!
Featured Articles
Announcing Pi
Technical Specifications
Raspberry Pi FAQs
Win a Pi
Raspberry Pi Wishlist
Actions
  • Share
  • More
  • Cancel
Forum Thread Details
  • State Verified Answer
  • Replies 6 replies
  • Answers 1 answer
  • Subscribers 679 subscribers
  • Views 655 views
  • Users 0 members are here
  • openelec
  • raspberry_pi_space
  • rainbowsquare
  • power
Related

Square in the corner

Brett.Wildermoth
Brett.Wildermoth over 10 years ago

what is with the square in the corner of the screen, I noticed this running openelec, but this isn't present on any of my other openelec platforms. Just thought maybe it is a radpberrypi2 specific thing.

  • Sign in to reply
  • Cancel
  • Former Member
    0 Former Member over 10 years ago

    Rainbow-y?  It's a notification that something g your doing is buttiing up against power requirements.  Just means you want to Consider more amps or a powered USB hub.

    • Cancel
    • Vote Up +1 Vote Down
    • Sign in to reply
    • Verify Answer
    • Reject Answer
    • Cancel
  • michaelwylie
    0 michaelwylie over 10 years ago

    Definitely a power supply notification like Ross mentioned.

    • Cancel
    • Vote Up +1 Vote Down
    • Sign in to reply
    • Reject Answer
    • Cancel
  • Brett.Wildermoth
    0 Brett.Wildermoth over 10 years ago

    I am using a 2A supply to power the unit and running all other devices off of a powered usb hub. So I can't see how it could be insufficient power. Unless my cable that was powering it was broken, since it doesn't seem to charge my phone either. I guess further investigation is required, thanks for the help.

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
  • michaelwylie
    0 michaelwylie over 10 years ago in reply to Brett.Wildermoth

    That is interesting. I've only seen this issue described online in the Raspberry Pi forums on Element 14. I've never had it occur.

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
  • Brett.Wildermoth
    0 Brett.Wildermoth over 10 years ago

    It seems that the the micro USB cable between the Raspberry Pi and the power-pack was a dud, so it was a power issue after all. But an interesting side effect is that you can just barely power the Raspberry Pi via the USB-B plugs connected to a powered hub, with nothing connected to the microUSB power port.

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
  • screamingtiger
    0 screamingtiger over 10 years ago

    I was getting this square this week. I have a RPi 2 and am using a 1A cell phone charger as power.  I power an arduino on the 5V rail of the pi, and when I started using a servo powered by the arduino I would get the square.  Of course I am pushing it  image

     

    I've since switched to a battery to power the arduino.

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
element14 Community

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2026 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • X
  • Facebook
  • linkedin
  • YouTube