I'm excited to share a project I've been working on: a web-based tool that lets you generate 3D printable models of real-world locations using OpenStreetMap data!

t started with a message from a fellow Home Assistant user struggling with a blueprint. They shared a screenshot of their goal: an automation that snaps a photo when motion is detected and sends it—complete with an AI-generated description—as a mobile notification. I’d only used notifications for simple things, like knowing when a door was left open or the laundry was finished, but I really liked the idea of combining AI with real-time alerts. It didn’t take long to get it working, and I realized it was too useful not to share. So in this post, I’ll walk you through the exact setup, step by step.

[sprite_tm] had a problem. He needed a clock for the living room, but didn’t want to just buy something off the shelf. In his own words, “It’s an opportunity for a cool project that I’d rather not let go to waste.” Thus started a project to build a fun e-paper digit clock!

Raspberry Pi-based headless Plexamp player inside a vintage cassette deck

TL;DR - A simple mission to write a guide for some people on Reddit on how to create a plane spotting screen led me down a deep ADS-B rabbit hole and ended with me building a clock.

Read on for a guide to build a screen yourself (GitHub repo here), or if you can't be bothered to source the components and run your own ADS-B station, I can send you a kit with everything you need to set up a clock like the one above.

Interactive exhibition by Niklas Roy , Kikk Festival

For a small volunteer-run music festival we designed and built a custom decentralized NFC payment system. Due to the nature of the festival, the design of the system and hardware had some unique requirements: It had to be fully decentralized and not rely on network connection, which created some interesting security challenges. We also developed custom hardware terminals (based on ESP32) to be used at point-of-sale.

LVGL is the most popular free and open-source embedded graphics library to create beautiful UIs for any MCU, MPU and display type.

From consumer electronics to industrial automation, any application can leverage LVGL's 30+ built-in widgets, 100+ style properties, web-inspired layouts, and typography system supporting many languages.

pwn.college is an education platform for students (and other interested parties) to learn about, and practice, core cybersecurity concepts in a hands-on fashion. In martial arts terms, it is designed to take a “white belt” in cybersecurity through the journey to becoming a “blue belt”, able to approach (simple) cybersecurity competitions (CTFs) and wargames.

Cheap Yellow Display

Webpages fade,

Preserve them.

Your all-in-one collaborative tool for collecting and preserving useful webpages and documents.

Building a community around a cheap ESP32 Display with a touch screen

Raspberry Pi-based headless Plexamp player inside a vintage cassette deck

Electronics-based art installations are often fleeting and specific things that only a select few people who are in the right place or time get to experience before they are lost to the ravages of ‘progress.’ So it’s wonderful to find a dedicated son who has recreated his father’s 1973 art installation, showing it to the world in a miniature form. The network-iv-rebooted project is a recreation of an installation once housed within a departure lounge in terminal C of Seattle-Tacoma airport.