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My Oled dsiplay nothing after power on — Parallax Forums

My Oled dsiplay nothing after power on

KevinKKKevinKK Posts: 27
edited 2010-08-06 04:15 in Propeller 1
We have two pcs of OLED128, one of which the display can't show clear image after power on it (see attached pic). The other can't display any image.
We can hardly find out any reason for this shortage. Can you check for us and we hope your any suggestion ...

Kevin K

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http://www.playrobot.com

Kevin KK
SI Engineering Dept.
2592 x 1944 - 96K

Comments

  • Bobb FwedBobb Fwed Posts: 1,119
    edited 2010-08-05 23:39
    The program you are using or a circuit diagram would be helpful to diagnose this problem.

    The first questions should be are you sure you have a strong 5V going to the screen? Are you pulling the TX line high? Which object are you using to drive the screen?

    I recently purchased my first oLED screens, I didn't get it to work with the first object I downloaded. I ended up with "uOLED-128-GMD1" and haven't had any problems since.

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  • TubularTubular Posts: 4,699
    edited 2010-08-06 04:15
    Kevin,

    I suggest you try asking on the support forum at 4dsystems.com.au. Others may have seen something similar. Also I believe the circuit schematic is available in the documentation - this might help you trace through the voltage levels and see what is wrong.

    If all else fails - there is a new 128x128 module which has an excellent LCD screen, and these are just $29.

    regards
    tubular

    KevinKK wrote: »
    We have two pcs of OLED128, one of which the display can't show clear image after power on it (see attached pic). The other can't display any image.
    We can hardly find out any reason for this shortage. Can you check for us and we hope your any suggestion ...

    Kevin K

    http://www.playrobot.com
    Kevin KK
    SI Engineering Dept.
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