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    Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

    5" Jumpy screen?

    Scheduled Pinned Locked Moved Help and Support
    jumpylcdscreen
    46 Posts 4 Posters 16.0k Views
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    • josephchrzempiecJ
      josephchrzempiec @cyperghost
      last edited by

      @cyperghost And there goes that problem I isolate the screen from the Raspberry pi and just Power the LCD with it's only 5v 2a Power supply and it confirms my thoughts there is Noise on the lines. The LCD comes on with no problem nice and clear and clean.

      cyperghostC 1 Reply Last reply Reply Quote 0
      • cyperghostC
        cyperghost @monstermadeofman
        last edited by cyperghost

        @monstermadeofman
        We will see in the next posting of @josephchrzempiec. Be prepared :)

        EDIT: Respect you were right :)

        1 Reply Last reply Reply Quote 0
        • cyperghostC
          cyperghost @josephchrzempiec
          last edited by cyperghost

          @josephchrzempiec
          Nice it works :)
          Do you use the same grounding signal for all?
          Please then graduate @monstermadeofman

          1 Reply Last reply Reply Quote 0
          • josephchrzempiecJ
            josephchrzempiec
            last edited by

            Someone Shake my head off my shoulders please LOL

            Yes i still keep a common ground between both power supplies bypassing the buck boost converters. As i looked online A lot of these Buck boost converters Because there old design That they are notorious For noise on the lines. I do have a power boost 1000c from adafruit But i do not have other buck boost converter like in your I'm i will look into getting one. Meanwhile i think with a little help from filtering caps might for now Help clear up some of the Screaming noise from the lines.

            1 Reply Last reply Reply Quote 0
            • monstermadeofmanM
              monstermadeofman
              last edited by

              Dude you don't need another power converter.

              The Powerboost is the converter! It steps up 3.7V to 5.2V.

              Can you take a pic of your wiring my friend? Just so we can see how you are powering everything

              Not all those who wander are lost

              josephchrzempiecJ 1 Reply Last reply Reply Quote 0
              • josephchrzempiecJ
                josephchrzempiec @monstermadeofman
                last edited by

                @monstermadeofman That might be a problem so much wiring you won't be able to see what is going where. There are 30 wires are more going form the game controllers to the raspberry pi and to the LCD and power it's so tangled up it's not even funny.

                monstermadeofmanM 1 Reply Last reply Reply Quote 0
                • monstermadeofmanM
                  monstermadeofman @josephchrzempiec
                  last edited by

                  @josephchrzempiec

                  Christ man. Are you using a power strip to supply/distribute power to everyhting?

                  Not all those who wander are lost

                  josephchrzempiecJ 1 Reply Last reply Reply Quote 0
                  • josephchrzempiecJ
                    josephchrzempiec @monstermadeofman
                    last edited by

                    @monstermadeofman LOL no man I just not got around to cleaning up the wires yes. That was the next thing to do. After getting it powered up and testing it.

                    monstermadeofmanM 1 Reply Last reply Reply Quote 0
                    • monstermadeofmanM
                      monstermadeofman @josephchrzempiec
                      last edited by

                      @josephchrzempiec

                      I would suggest a powerstrip before powering anything.

                      They are simple enough to make or you can order one from OSH Park

                      alt text

                      https://oshpark.com/shared_projects/tQqjx16m

                      I've got a simple one I made that I use for testing power purposes

                      Not all those who wander are lost

                      josephchrzempiecJ 2 Replies Last reply Reply Quote 0
                      • josephchrzempiecJ
                        josephchrzempiec @monstermadeofman
                        last edited by

                        @monstermadeofman That is on my next thing to do as soon as i can.

                        1 Reply Last reply Reply Quote 0
                        • josephchrzempiecJ
                          josephchrzempiec @monstermadeofman
                          last edited by josephchrzempiec

                          @monstermadeofman There is a En and Vs pin on the 1000c Power Boost what is that for?

                          the other Question is would the power boost 1000c would be able to charge my 5000mah batteries?

                          monstermadeofmanM 1 Reply Last reply Reply Quote 0
                          • monstermadeofmanM
                            monstermadeofman @josephchrzempiec
                            last edited by

                            @josephchrzempiec

                            En is you Enable. That's for a powerswtich.

                            I Beleive the VS is also for this but I onlu use VS and Ground. Check Adafruits website for the wiring I beileve it's on there

                            Not all those who wander are lost

                            josephchrzempiecJ 1 Reply Last reply Reply Quote 0
                            • josephchrzempiecJ
                              josephchrzempiec @monstermadeofman
                              last edited by

                              This post is deleted!
                              1 Reply Last reply Reply Quote 0
                              • josephchrzempiecJ
                                josephchrzempiec
                                last edited by

                                The other Question is would the power boost 1000c would be able to charge my 5000mah batteries?

                                monstermadeofmanM 1 Reply Last reply Reply Quote 0
                                • monstermadeofmanM
                                  monstermadeofman @josephchrzempiec
                                  last edited by

                                  @josephchrzempiec

                                  Yeah dude it would. Will take longer than charging a 2500mAh battery but it will do it all the same

                                  Not all those who wander are lost

                                  josephchrzempiecJ 1 Reply Last reply Reply Quote 0
                                  • josephchrzempiecJ
                                    josephchrzempiec @monstermadeofman
                                    last edited by

                                    @monstermadeofman I got all the time in the world. Being disabled one thing i got is time :)

                                    1 Reply Last reply Reply Quote 1
                                    • josephchrzempiecJ
                                      josephchrzempiec
                                      last edited by

                                      Thank you all for the help I will later on Post a update and let everyone know how it's coming along.

                                      1 Reply Last reply Reply Quote 1
                                      • josephchrzempiecJ
                                        josephchrzempiec
                                        last edited by

                                        Hello all who helped me on my screen problem. I isolate everything from the screen even shorten the wires and still got some jumping to it not as much as before. So i decided to take out the raspberry pi and put the camera it came with for the rear view and what i found out is the problem is the screen even with the camera i still get the same problem. So next thing i tested was putting it on a old DVD player and what i saw was the same thing jumping around a little still wasn't as bad. Over all shorting the wires helped the noise which i think that is what it is and changing the raspberry pi settings Helped it a lot. The LCD i think is not a very good one. Very cheap. No matter what i do to it. The noise won't go away.

                                        Which brings me to the End of the Post. Sad it's over but i learned a lot about this screen, Yeah never to buy it again LOL Thank you to all who helped me with this screen problem. :)

                                        1 Reply Last reply Reply Quote 0
                                        • josephchrzempiecJ
                                          josephchrzempiec
                                          last edited by

                                          Hello i wonder if someone can help me out with the config file to set it for a 16:9 800x480 screen that is a 5" Inch LCD monitor using composite video. There are so many settings i do not know which is better. Sense I'm not using HDMI wish to disable it. This is the link from this post for the video part. But so many to choose from not sure. http://raspberrypi.stackexchange.com/tags/config.txt/info

                                          1 Reply Last reply Reply Quote 0
                                          • cyperghostC
                                            cyperghost
                                            last edited by

                                            The screen gots two inputs. Did you try the white one?
                                            All at all it seems the screen is faulty.

                                            josephchrzempiecJ 1 Reply Last reply Reply Quote 0
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