Hi everyone,

This is my first attempt at designing a PCB for an RGB controller.
The concept is to take in an RS485 signal and then output 9 PWM signals (3 each for Red, Green, and Blue)(And those singals go into a RGB amplifier).

I’ve only followed a few YouTube tutorials to design this, so I’d really appreciate it if you could point out any obvious beginner mistakes in my design.

Also, what would you consider a reasonable price for a bare PCB like this? I’ve seen huge differences online (anywhere from €5 to €50).
I’m from the Netherlands (EU), so shipping costs are also a big factor for me. Do you have any PCB manufacturers you would recommend that are still affordable with shipping included?

Do you have any PCB manufacturers you would recommend?
Thanks!

https://www.dropbox.com/scl/fi/bvdlkkznocx35no61i67p/Gerber_First-project2_PCB_First-project2_2025-08-25.zip?rlkey=3ye06db0ssfuesk4fdng32cva&st=798wq8mt&dl=0