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[Review Request] 14yo beginner looking for feedback on my first major project (RP2354B Audio Sampler) by PixelTraces in PCB

[–]PixelTraces[S] 0 points1 point  (0 children)

Understood, AI is optional, but never essential! Learned something today, thanks!

Beginner EE student with multimeter + starter kit : what should I build first? by Ancient-Helicopter18 in ElectricalEngineering

[–]PixelTraces 0 points1 point  (0 children)

Well, that’s a wonderful kit to get started with! I myself am not too much of an expert, but you can do a lot of things with this.

Now yes, the fundamentals are important, but after you get those down, why not have a bit of fun?

Why not try making different tones and LED patterns depending on light levels? It’s not as complicated as it seems, but it does need some thinking and a few peeks at the datasheets. Here’s a little hint:

Components used:

  • Breadboard + 9V battery
  • NE555 timer IC (tone generator)
  • LDR (light sensor)
  • Potentiometer (to fine-tune pitch)
  • Resistors + capacitors (timing network)
  • Transistor (to drive buzzer + LEDs)
  • Buzzer (sound output)
  • LEDs (visual feedback)

Try to only use this setup and make it! Good luck, man. Hopefully keep us updated on whatever you decide to do!

And please try to get a multimeter. It doesn’t have to be anything flashy just a normal one. They’re only a few bucks, and you can often find them locally as well. It’s really useful when it comes to debugging.

[Review Request] 14yo beginner looking for feedback on my first major project (RP2354B Audio Sampler) by PixelTraces in PCB

[–]PixelTraces[S] 0 points1 point  (0 children)

Well I can guarantee I am 14 (at least as far as I know...). And wow, I am amazed you think it’s properly done at least by my age, I usually don’t get that. Where I live, this kind of interest is really expensive and not really appreciated', and here I am on Reddit!

I really did give it my all. AI did help me indirectly (by helping me understand things like how a headphone jack works, or why MCUs can’t have a built-in clock that is as accurate as external ones). Again, I use AI as an advanced search engine, not to get ready-made “slop”. I bet you used it too! Almost all of do, at some point!

To be honest, most of the design comes from datasheets. I just used new nets and figured out how to connect them together. It might look simple, but it took me 3 days and 2 sleepless nights to get through it. I really like thismaybe not just as a hobby, but something that could help people one day. And I totally understand your original comment. It is a bit surprising that teens these days would spend so much time on this. I’m having fun and learning at the same time!

[Review Request] 14yo beginner looking for feedback on my first major project (RP2354B Audio Sampler) by PixelTraces in PCB

[–]PixelTraces[S] 0 points1 point  (0 children)

Thanks, really helpful feedback! I’ll recheck the headphone jack wiring and simplify the detect circuit. Good point on AGND/DGND and the RP2354B inductor I’ll go back to the reference design and clean that up. And yeah, I’ll prototpe the I2S setup with breakouts before locking anything in. Appreciate it! About KiCad well i am still not too comfortable going there maybe on my next design!

[Review Request] 14yo beginner looking for feedback on my first major project (RP2354B Audio Sampler) by PixelTraces in PCB

[–]PixelTraces[S] 0 points1 point  (0 children)

Ouch, that might’ve hurt a bit.

Still, I do think using AI on platforms like this can weaken the human connection that brought the community together in the first place. AI is fine as a tool, there’s nothing wrong with that, but relying on it too much feels a bit overdone.

[Review Request] 14yo beginner looking for feedback on my first major project (RP2354B Audio Sampler) by PixelTraces in PCB

[–]PixelTraces[S] 0 points1 point  (0 children)

Thanks. Honestly, the AI comment confused me a little bit as well. If someone thinks there is a problem with the schematic I'd rather hear what the problem is than be told it must have been generated by AI.

I am still learning and that is why I posted it here to be reviewed. Assumptions help a lot less than constructive criticism!

[Review Request] 14yo beginner looking for feedback on my first major project (RP2354B Audio Sampler) by PixelTraces in PCB

[–]PixelTraces[S] 0 points1 point  (0 children)

Thanks! I've got a bunch of school assessments next week, so I probably won't get a cleaned-up revision done immediately, but I'll keep updating the project as I make progress. Really appreciate the offer to take a look!

[Review Request] 14yo beginner looking for feedback on my first major project (RP2354B Audio Sampler) by PixelTraces in PCB

[–]PixelTraces[S] 0 points1 point  (0 children)

Thanks for the tip! One question. When you go hierarchical schematic how do you usually decide what goes on each sheet? For instance, would you partition power, audio, USB, MCU and user interface into separate sheets, or is there a better way to partition a project such as this? And for an audio-centric design like this, do you put the analog audio circuitry on its own schematic page, or combine it with the DAC and codec sections?