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[New Nucleo, same prob] DIY Pin2DMD Black screen


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I'm trying to run my pin2dmd but I do not have anything on the screen. The first time, I had a few lines because I was wrong on the solder card sd ... but now I have nothing that appears. The Nucleo is in V3. the leds are well fed in 5v but nothing works ?
The problem is that I do not know where to start to check?
Can you help me.

Thank you and good day.

Ps: I have not yet put all the components for the pinball part, I think it does not matter!





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3 minutes ago, latenite04 said:

It looks like your Max232 chip is backwards, the notch should be on the other side, and you are also missing capacitors c1-c7.


Oh yes i will try...thanks you !


(I thought the capacitors are only there for the pinball connection)

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You are probably right about the parts, I have never built a shield just for a vpin. I would check and re-flow the solder joints on your headers. I have had a shield that gave me a blank screen and it was a bad solder joint on the header. Did you re-flash the nucleo board with the firmware?

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After a long wait, I finally received my Nucleo F429ZI.
I flashed it with the latest version of PIN2DMD and I still have the same problem, nothing on the screen.

I want to cry ?

So here are some screenshots if anyone can help me?

Thank you and good day.






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Maybe you did not download the firmware binary, but the website html.

Just click on the download button on this site to get the correct file

https://github.com/lucky01/PIN2DMD/blob/master/firmware/latest/V4 NUCLEO-144/PIN2DMD.bin

or use this link 

https://github.com/lucky01/PIN2DMD/blob/master/firmware/latest/V4 NUCLEO-144/PIN2DMD.bin?raw=true

Also please make a picture of how you connected the panels 

The downside connector is for piggyback installation and not for ribbon cables. Please connect the ribbon cable

to the topside HUB75 connector.



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