Category Archives: Linux

Linux-related topics.

Embedded Continous Integration Made Easier

Posted on July 27, 2023 by treideme

I often get asked how we test our production firmware. This is a conceptual overview of how this can be done for almost any complex embedded system without embarking on a very expensive hardware-in-the-loop setup. Some of this work is grounded in lessons learned in previous research that I did during my tenure at the […]

Posted in Coding, DevOps, Embedded, Linux, Windows | Leave a comment

IoT Contest Conclusion

Posted on July 16, 2023 by treideme

Part 1 Part 2 I am delighted to present my final submission for the IoT contest. Throughout this journey, I have worked diligently to develop a reaction trainer prototype rivalling existing commercial solutions such as Blaze Pods. By leveraging the capabilities of the CH32V208W microcontroller, I have designed a custom PCB that incorporates a calibrated […]

Posted in Coding, Contest, Embedded, Linux, Martial Arts, RISCV, RT-Thread, WCH | Leave a comment

A Tiny Companion

Posted on November 20, 2022 by treideme

I finally received the laptop that I ordered a while back on Aliexpress. Given that I have a bunch of Christmas travel lined up and may spend hours being crammed in excessively priced airplane economy seats, I was seriously thinking of ways to reduce my electronic baggage. Typically I would have a phone, a big […]

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A Practical Introduction to libUSB and Raster Printers

Posted on September 21, 2022 by treideme

This article provides a basic introduction to libUSB by using a Brother tape printer. All sources and the finished library are on Github. I remember that as a kid, my first serious workstation was an Eskom 80386-DX40​1​ computer as part of the package my parents also got a Fujitsu DL​2​ dot-matrix printer with endless paper […]

Posted in Coding, Linux, USB | 1 Comment

Offline Linux: Back to the 90s Thanks to Rogers

Posted on July 18, 2022 by treideme

All sources, tools, and code are available here. Friday two weeks ago was almost a forced corporate holiday. A massive outage of Rogers caused mayhem in Canada. Everything from selective 911 outages, and payment settlement systems, to a complete loss of cellular service in all Rogers-serviced cells to Internet outages. Years of festering complacency of […]

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