DIY portable 3x3x3 LED cube | unusual problem

[@TECHnoman753]

That's cool I never thought of putting diodes between the leds

[@dominikworkshop6007]

Thank you!

[@TECHnoman753]

@@dominikworkshop6007 yush!~ Btw is it a specific diod? I'm it's the glass one's but Idk much about them

[@dominikworkshop6007]

@@TECHnoman753 It's just a fast switching diode, nothing fancy, it is a low power diode that can switch fast.

[@Lol-ud8cs]

thank u sooo much, this helped me cheat my electronics test lol

[@leon9357]

I made a 8*8*8 led cube but unfortunately some of the leds are not working. I mean they are not showing any animation. They are either off or glowing constantly. Can you please help me? Is it the problem of my Arduino Uno board? Please help. Thank you.

[@dominikworkshop6007]

Are you using normal LEDs, or addressable LEDs? You might have to double check if they are connected correctly. I could help you more if i knew more details about your cube, schematics would be very helpful.

[@leon9357]

@@dominikworkshop6007 I am using normal blue colored LEDs. And I check all the connections. They are all ok. I downloaded the schematic from one youtuber named: "Creative Vinay". I used 74HC595N shift register(9 pieces), 16 2N2222NPN Transistor and one Arduino Uno.

[@dominikworkshop6007]

@@leon9357 I took a look a the schematic diagram, and I noticed that the shift register that controls the transistors has it's output connect directly, without a resistor, to the base of these transistors. It might damage the shift register or the transistors.

[@dominikworkshop6007]

@@leon9357 Are the misbehaving LEDs all in one column or a row? Or is there like one LED not working properly in one layer?

[@leon9357]

@@dominikworkshop6007 The misbehaving LEDs are in one column.Column no. 7 and Column no. 8. All the LEDs of these two columns are misbehaving. Thank you for your kind attention. You are a great guy. I changed all the shift registors and also changed 8 tarnsistors, but no help.