Hello everyone,
i am currently in the 10th class and doing my exam project in technic.
The Program i have to upload to my arduino uno is done and work.
But when i upload it it wont work.
The Project ->
https://create.arduino.cc/projecthub/lindsi8784/electronic-piano-keyboard-with-preset-songs-74ee7c?ref=tag&ref_id=piano&offset=0
This is what i rebuild ->
and i recorded an video for you to see how it is "working" ->
u-cqhlul:
i am currently in the 10th class and doing my exam project in technic.
The Program i have to upload to my arduino uno is done and work.
But when i upload it it wont work.
That doesn't make sense. If your program doesn't work when it is uploaded when and how does it work?
Steve
It looks like you have a contrast problem... are you using a 10K potentionmeter like the tutorial? It looks like a wiring issue. Please recheck all your connections for the LCD. Does it make music?
Reply to #1 - Well i mean that the programm is alright when i check it but when i upload it i cant play music or else.
Reply to #2 - I don't know exactly what kind of potentiomete i am using. How can i check ? But it doesnt even make a single sound.
I just Found out that i done something wrong.
(To explain i tried to build my hole project again to check if something is missing or so.)
Here to see -> Imgur: The magic of the Internet
The first cable imarked missed the hole Time 
And the other thing what i marked is that there should be an 1k resistor, but i accidently put there an 4.7k resistor :(.
Do you think that myght be the reason ?
On monday when i have school again i can get these 2 things and tell you if it works.
I think the major problem is likely to be the fact that you've wired the buttons incorrectly.
Nevermind, I'm dumb.
And the other thing what i marked is that there should be an 1k resistor, but i accidently put there an 4.7k resistor
Do you think that myght be the reason ?
No all that would do is to change the note's pitch.
The first cable imarked missed the hole Time
Could you try that again in English please?
Did it miss the hole? Was it missing the whole time?
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