Blog

Detecting Objects with the RASPBERRY Pi AI Camera and a RASPBERRY Pi 5 -- Part 2

RobinB13

In version 1, I set up the Raspberry Pi AI Camera and displayed the objects it detected in the terminal. A good start -- but this time, lets put those detections into a picture! In this upcoming version, I'll take a photo and save two copies: the ori...
- 11 Nov 2026
Detecting Objects with the RASPBERRY Pi AI Camera and a RASPBERRY Pi 5 -- Part 1

RobinB13

As an intern for the element14 community, I carried out this project as part of the tasks I had during my internship. The idea is simple: use a Raspberry Pi 5 and a Raspberry Pi AI Camera to recognize everyday objects, and build the project in four s...
- 7 Nov 2026
Pico low jitter PID controller

Jan Cumps

In my blog Pico PID controller without floating point using DSP C++ fixed point API , I created a low footprint Pico PID example. In this post, I reduce jitter by making sample clock steady, and let that drive the PID loop e...
- 24 Oct 2026
Pico PID controller without floating point using DSP C++ fixed point API

Jan Cumps

This is a proof of concept. A test to show that the generic PID class I wrote with a TI MSPM0, is actually generic.In this post, I make it run on a Raspberry Pico2. The design is a stabile DC voltage supply. Pico PWM generates a DC voltage...
- 23 Oct 2026
I wrote a hands-on Raspberry Pi Pico 2 project book — free review copies for embedded developers

micheal.embedded

Hi everyone, I’m Michael I write embedded systems books for beginners and professionals. I recently released: Embedded Systems with Raspberry Pi Pico 2 and RP2350: Projects and Deep Dives The book is built around the Raspberry Pi Pico 2 powere...
- 3 Mar 2026
Use the Pico RP2350 in RISC-V mode without Pico VSCode Extension: build

Jan Cumps

Raspberry published a VSCode extension for the Pico family. It's very useful and makes for an easy experience. I use it a lot.But for projects I publish, I prefer that there is no dependency on either VSCode or the extension. That...
- 15 Dec 2025
C++ write your own stream class - part 2: a working Pico UART IO stream (embedded friendly C++)

Jan Cumps

In C++ it's common to stream data. You write to a file using the << operator. You read with >>. example: cout << "hello, world! << endl; In this blog I'm making my own minimal in, out and in-out stream class fo...
- 15 Nov 2025
modern C++ on a Pico: use C++ Standard Library algorithms - embedded friendly

Jan Cumps

C++ has embedded friendly mechanisms that can help to structure your firmware. While keeping the design resource-lean.In this post, I use classes, C++ stl containers and algorithms to manage close-to-the-hardware resources with object...
- 7 Nov 2025
OO Library to handle Pico PIO relative interrupts: library design

Jan Cumps

This post explains the internal design of OO Library to handle Pico PIO relative interrupts: usage and example . I made an Object Oriented library that supports handling PIO interrupts with C++ objects.Goal: let a PI...
- 27 Aug 2025
OO Library to handle Pico PIO relative interrupts: usage and example

Jan Cumps

I made an Object Oriented library that supports handling PIO interrupts with C++ objects.Goal: let a PIO state machine call the very C++ object that can manage (or watch) that particular event. For who is this library? It's m...
- 26 Aug 2025
OO Library to handle Pico PIO relative interrupts: intro

Jan Cumps

Object Oriented library to design C++ classes that support PIO interrupts. Goal: make a PIO state machine call the very C++ object that's managing (or watching) it. When I designed a Pico library to manage stepper motors with the PIO co-cont...
- 23 Aug 2025
Raspberry PIO stepper library documentation - 5: simple ramp up and down

Jan Cumps

Raspberry PIO stepper library (pio_stepper_lib) is a C++ library that runs stepper motors in PIO state machines. It's intended to be easy to integrate and use in Pico projects. In this post: create ramps when motor starts, stops or changes direc...
- 11 May 2025
Raspberry Pico stepper driver IC library, with example: Allegro A4988

Jan Cumps

Pico C++ library for Allegro A4988 stepper driver IC. I created a generic stepper driver library, and made a first example: Raspberry Pico stepper driver IC library, with example: Texas Instruments DRV8711. In this post, I create a pl...
- 30 Apr 2025
Raspberry Pico stepper driver IC library, with example: Texas Instruments DRV8711

Jan Cumps

While designing a library for stepper motors, it bothered me that I had to put stepper driver IC logic across my user code.To solve that, I made a little driver lib. First I looked what logic shabaz and I put in our stepper projects, and s...
- 26 Apr 2025
Raspberry Pico: talk to ICs with active high Chip Select (CS)

Jan Cumps

SPI ICs usually have an active low chip select pin (~CS, nCS, ...). I have a Texas Instruments IC (stepper motor driver DRV8711) that has an active high CS. Initially, I bit-banged the CS pin: set it high with the GPIO API before communication, ...
- 25 Apr 2025
Raspberry PIO Stepper Library: Trying it out with a Pi Pico and two Stepper Motors!

shabaz

Stepper motors are super-useful for precision movements. I made a little stepper motor board a while back, but never got around to testing it at the time. Jan Jan Cumps has created a stepper motor control library (click here to learn a...
- 23 Apr 2025
Raspberry PIO stepper library documentation - 4: understand the step frequency

Jan Cumps

Raspberry PIO stepper library (pio_stepper_lib) is a C++ library that runs stepper motors in PIO state machines. It's intended to be easy to integrate and use in Pico projects. In this post: the frequency of the pulse train it generates, and how...
- 21 Apr 2025
Raspberry PIO stepper library documentation - 3: control multiple motors with 1 or more PIOs

Jan Cumps

Raspberry PIO stepper library (pio_stepper_lib) is a C++ library that runs stepper motors in PIO state machines. It's intended to be easy to integrate and use in Pico projects. Check Raspberry PIO stepper library documentation - 1: in...
- 21 Apr 2025
Raspberry PIO stepper library documentation - 2: advanced example with notification

Jan Cumps

Raspberry PIO stepper library (pio_stepper_lib) is a C++ library that runs stepper motors in PIO state machines. It's intended to be easy to integrate and use in Pico projects. Check Raspberry PIO stepper library documentation - 1: in...
- 18 Apr 2025
Raspberry PIO stepper library documentation - 1: intro, set up project and simple example

Jan Cumps

Raspberry PIO stepper library (pio_stepper_lib) is a C++ library that runs stepper motors in PIO state machines. It's intended to be easy to integrate and use in Pico projects. 4 motors can be controlled per PIO can be used with any stepper mot...
- 18 Apr 2025
Handle Raspberry Pico PIO "relative interrupts" in C++

Jan Cumps

In a previous post, I figured out how PIO -> ARM interrupts work, and how to handle them in C. What I learned was that a traditional interrupt is easy. Relative interrupts are more involved. The interrupt part adds significant ...
- 15 Apr 2025
Handle Raspberry Pico PIO "relative interrupts" in C

Jan Cumps

There are decent examples available on how to handle PIO interrupts in C. But not so much on dealing with relative IRQs. With a normal IRQ, PIO fires an interrupt with a fixed number. The number that you give it. A relative IRQ - ...
- 13 Apr 2025
Stepper Motor Control with Raspberry Pico PIO and DRV8711 driver- Part 7: autonomous PIO with interrupt when done

Jan Cumps

The Pico has a set of PIO co-processors. They are real-time controllers that can execute logic with deterministic timing. Ideal to run strict-timed sequences and state machines. And to implement extra peripherals.In this series, I'm trying t...
- 12 Apr 2025
emulate Raspberry PICO PIO programs

Jan Cumps

The Pico has a set of PIO co-processors. They are real-time controllers that can execute logic with deterministic timing. Ideal to run strict-timed sequences and state machines. And to implement extra peripherals.I'm trying a PIO emulator&nb...
- 11 Apr 2025
Stepper Motor Control with Raspberry Pico PIO and DRV8711 driver- Part 6: autonomous PIO with speed control

Jan Cumps

The Pico has a set of PIO co-processors. They are real-time controllers that can execute logic with deterministic timing. Ideal to run strict-timed sequences and state machines. And to implement extra peripherals.In this series, I'm trying t...
- 8 Apr 2025