Embedded Journeys

First Time USB Data Streaming from the Raspberry Pico 2W Using TinyUSB

Lessons learned from TinyUSB on the RP2350 and Python's PyUSB

When I read about the presence of the USB controller on the RP2350, I got intrigued if I would be able to stream data from the Pico 2 board. I set out to use TinyUSB on the RP2350 and created a host application in Python to ingest the data. This post is about some of the key insights I gained during the development of a simple datapipeline: from the pico 2W USB device to the Python USB host.

Posted by Steven De Bock on Tuesday, December 23, 2025

Debugging RP2350: Subtle Differences Between the RISC-V and ARM cores

3 insights that facilitated my Pico 2W multi-core debugging sessions

This all started when I was trying to understand how my RP2350 would react when I wanted to read a memory address like 0x00000000 on the RISC-V and ARM cores. However, this sidetracked me into a deeper understanding of debugging the RP2350 with my Raspberry Pi Debugger Probe! At first, it felt like regular breakpoints were just ignored, if the program even started running at all! My attempts at running RISC-V and ARM cores revealed some subtle debugging behaviour.

Posted by Steven De Bock on Friday, December 5, 2025

Raspberry Pi Pico 2W on the go!

Making sure I've got a Raspberry Pi Pico with me!

Just a small post about how I’m making sure I can quickly get my Raspberry Pi Pico 2W with me when on a commute. A small assortment box carries all components I need to quickly set up a small development environment.

Posted by Steven De Bock on Friday, November 21, 2025

Raspberry Pi + HC-SR04 Ultrasonic Distance Sensor: Wiring, Code and Accuracy Tips

Exploring how the HC-SR04 ultrasonic sensor measures distance using sound, and how to wire and program it on a Raspberry Pi.

The HC-SR04 is a popular and inexpensive ultrasonic distance sensor that measures range using sound waves. In this post, we connect it to a Raspberry Pi, explain the electronics behind the Trig and Echo pins, build a safe voltage divider for 3.3 V logic, and write a simple Python script to read accurate distance measurements. We’ll also touch on accuracy limits, environmental effects, and how ultrasonic interference can impact your readings.

Posted by Steven De Bock on Monday, November 10, 2025

Why hexdump and hexdump -C Show Different Output

A quick discovery I made while dumping ELF files with hexdump. A single flag changed the output in a way that made me rethink what I was seeing. Turns out, understanding how hexdump works under the hood is more important than it looks at first glance

Posted by Steven De Bock on Wednesday, July 9, 2025