Jonathan Rico

Windows is making great strides in usability and is on the verge of being a good enough developer desktop.

Adventures in Ruter API land 🚆🚌: A no-BS train & bus timetable website, tailored for my family.

A wearable guitar effects processor.

Today we will debug a Bluetooth application by using the rr debugger.

Today we will explain how to use the Zephyr Bluetooth stack on a board that doesn’t have a radio.

This post is an experiment in collecting and displaying trace data from a device running Zephyr RTOS.

A split low-profile mechanical keyboard.

A USB-controlled USB power/data switch.

Intro A board with a bunch of inputs and outputs I made for my daughter.

An LED strip (on a xmas tree) that displays the current job queue.

This post provides an non-exhaustive overview of the techniques that can be used to debug embedded devices.

Intro Designed as a follow-up to Ledwatch.

A project is never truly completed, but abandoned 2024 No-rush: Online train timetable 2023 FV1 clip: Wearable guitar effects processor.

Summary A simple binary led watch.

Summary An FM transmitter, just like the ones used for hearing your mp3 player’s music on your old car radio, but made for using with an electric guitar.

Summary A system that allows one to graph the acceleration and angular velocity of a small widget in real-time, wirelessly.

Summary A programmable guitar/bass effects pedal, based on the excellent Spin semi FV-1 DSP chip.

Summary My first encounter with robotics, in 10th grade.