Articles: #raspberry_pi
How to Sensor with Devicetree (on Raspberry Pi)
21st October, 2026 10min
On an Arduino there are libraries to drive sensors. On a Linux desktop the hardware is automatically configured and abstracted. But what about embedded Linux? What about a Raspberry Pi? This is where the Devicetree comes in: how Linux learns about the hardware — your way of specifying hardware.
Slay the Daemons on Embedded
4th October, 2026 15min
My name is Chris and I'm afraid of daemons. Well, not literally but I am engineering the firmware for an embedded, real-time device. And I chose to use Debian Linux with systemd. What I'm afraid of are background processes, daemons, performing actions I don't anticipate. This article explains how I create a linux image for my device with only a handful purposeful daemons.
Mistakes in the Docs: UART on Raspberry Pi 5 Compute Module
8th June, 2026 4min
We have a Raspberry Pi Compute Module 5 IO Board without a monitor or network connection. How do you see what the system is doing? How to read the Linux and bootloader log? A simple answer is UART. Turns out, UART isn't so simple on the Raspberry Pi 5 and its documentation, datasheet and raspi-config is wrong in a couple of places.