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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
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    • cyperghostC
      cyperghost @josephchrzempiec
      last edited by

      @monstermadeofman
      I don't want to stop your helping hand but ....

      @josephchrzempiec said in 5" Jumpy screen?:

      Hello thank you all for the reply back. It came with a rear view car camera and i tried that. Surely a clear perfect picture no jumping around. It's only in the raspberry pi it's doing this.

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

        @cyperghost

        Yeah I think the issue at this point man is how he's supplying power. Seems a bit convoluted and is probably a power issue if it's ok when just using the camera with it.

        Not all those who wander are lost

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

          I want to try something Let me isolate the raspberry pi from the LCD and power it up on a different Power supply and see what happens.

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

            @monstermadeofman Do you think the power regulator is messing the composite signal? That could be possible.... So it should work with separated power supplies.
            But it could also be a bad composite connection or a bad config.

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

              That's what I was thinking. I'm using a composite screen with with a powerboost 1000C and I'm not getting an issue. But I think the fact he's using individual parts that might not like working together or could be wired incorrectly.

              Not all those who wander are lost

              cyperghostC 1 Reply Last reply Reply Quote 0
              • 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
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