• Jun 22, 2023

    picoTrackerPortable

    TL;DR

    picoTracker is a DIY music tracker that can be built with off the shelf components and built by soldering all the components together using wires, this is laborious, prone to errors and limits some of the design choices. I set myself to create a PCB for the project that could be easily built to make things easier. This set me off in a different direction and ended up creating a portable version of the picoTracker.

    final

  • Apr 30, 2023

    rp2040 audio clocks

    TL;DR

    I’ve calculated what are possible crystals that could be used in audio applications with the rp2040. The premise is to be able to generate i2s MCK, BCK and LRCK while also produce exact 48MHz USB clock. The two best crystals I came up with in the range valid for the rp2040 (between 5MHz and 15MHz) are 9.216MHz and 12.288MHz. These two crystal frequencies seem to be widely available too. Analysis was based on audio sampling frequency of 44100Hz. Results for other audio frequencies are provided but there might be crystals that are better suited for those.

  • Apr 20, 2023

    picoTracker

    TL;DR

    I ported LittleGPTracker to the Raspberry Pi Pico microcontroller and created an enclosure for 3D printing. The port has some limitations, some modifications and room to grow. Total cost of the picoTracker is $25 - $50 (USD) depending on things you may already have and where you source the components.

  • Nov 13, 2022

    Hello world!

    I’ve been wanting to share some of the stuff I do for a while, but for one reason or another I’ve never really done it. I’m setting up this blog in order to potentially share some stuff. I might never share anything tho… ¯\(ツ)/¯