sigje

I accidentally bought Micro JST 1.25 batteries for a SparkFun ESP32 board that needs JST PH 2.0. Looking for project ideas that use these smaller connectors and recommendations for the right LiPo replacements.

Authenticated in the CLI but still getting "Could not load default credentials"? Let's bridge the gap between gcloud and your application code.

Adding emotional responses using the SparkFun ESP32 Thing Plus and Arduino Modulinos to create a personality for my robot

Moving from simulation to a physical chassis with the Elegoo Smart Car and troubleshooting "unplanned disassembly".

Exploring the "dual-brain" architecture of a droid—using Arduino for physical reflexes and a Raspberry Pi 5 with local Vision AI for cognition.

Ever wonder why your LEDs flicker when you add Serial logging? 🕵️‍♂️ I explore the bottleneck of Arduino Serial communication and how to use non-blocking timers and higher baud rates to keep your PWM signals smooth.

The hardware is alive! I kit-bashed two vintage Arduino packs to move past the 'Blink' stage. From troubleshooting a mysterious Pin 13 bug to open-sourcing four new logic sketches, the foundation for the droid’s brain is taking shape.

What happens when you try to use a 16-year-old Arduino kit on a 2026 Mac? I’m dusting off my 2010 starter pack to begin a journey toward building a LEGO droid, but I hit a major 'bad CPU type' roadblock along the way.

From noSQL at Yahoo to Modern System Administration, the biggest lesson I've learned is that we can only solve hard problems when we build a foundation of empathy and reliability. The strength of our systems depends entirely on the strength of our 'We'.

Can you sketch a bicycle from memory? We tested the illusion of explanatory depth with Ruth Malan's Advent of System Seeing. The results revealed that engineers, users, and visionaries don't just see different parts, they see entirely different systems.

Neal Sample called it the "Lumberjack Paradox": AI gives us a chainsaw, but we risk forgetting how to use the axe. In this post, I explore why code samples are the critical "line of representation" for modern engineering, and why fragmented documentation isn't just confusing developers—it's poisoning the AI models they rely on.

Quick question about the term cloud computing for discussion

An ongoing (series) with snippets I've learned on a daily basis.

A short TIL style post about creating a JWT claim in Python

Discussion prompt around balancing code completeness, security, and maintainability in samples.

Learn how collaborative games can give you a different perspective of your work with Day 8 of Sysadvent, D&D for SREs.

Existing techniques for debugging and profiling are breaking down in multi-service architectures. In this chat, Ran and Jennifer will talk about observability and monitoring in serverless applications.

Day 23 of the Azure Advent: Security with Azure

Participating in open source is a gift that keeps on giving. Everyone participating in open source can benefit from increased learning and visibility. Yet, so many lurk or consume rather than join in active contribution. How can they get started?

Have you ever thought of collaborating on a community blog?

Time and money are generally the resources we focus on when building applications. Yet we can’t buy trust; it builds slowly and can be broken quickly when we don’t factor it in to our development process. In this talk, I examined how to leverage security practices to enable an all-team approach to security. In this post, I share resources from that talk.

It’s been a decade of devops, how has it shaped our industry and where are we going next? In my talk at devopsdays Kansas City, I shared a number of books and resources. Here they are in an easily accessible list.

Last week we checked out the circuit-breaker. This week, we'll examine the retry pattern. The basis...

Configure an Azure Credentials File with service principal settings.

Quick tip on finding configured privileges from the Azure portal.

Learn how to use ARM Templates to manage a CNAME in less than 5 minutes.

There are many infrastructure design patterns. In this post, I want to dig into the circuit breaker...

Learn three quick tips when setting up a new instance with Chef Infra.

Wrapping up the month of Azure April with thank yous to collaborators and a little information about using kanban and slack to coordinate work on creation of posts.

Learning about collaboration through testing in narrative form through the use of a fictitious company.