Tech – Page 2 – GeoffHudik.com

Raspberry Pi Infrared Motion Sensor with .NET

May 23, 2020May 24, 2020 Geoff Hudik

Overview The last post in this Raspberry Pi Cat Motion Siren project covered deploying .NET apps to Raspberry Pi through GitHub Actions and Docker. With the deployment mechanism in place, it’s time to dig deeper into the application code and Pi hardware. This post covers connecting a passive infrared (PIR) motion sensor to the Raspberry…

Using Pi-Gen to Build a Custom Raspbian Lite Image

May 15, 2020 Geoff Hudik

Recently I worked on Automating Raspberry Pi Setup but that relied on a setup script being copied to an SD card and run on the device. Near the end of that process I discovered pi-gen, a tool used to create the raspberrypi.org Raspbian images. Later in working with Azure IoT Edge, I had a similar…

CI/CD with Pulumi, Docker, and TeamCity

May 6, 2020May 29, 2020 Geoff Hudik

After setting up Pulumi to build an Azure VM, I wanted to try incorporating it into a TeamCity CI/CD process. The Pulumi TeamCity doc details the installation steps such as installing Node.js. In my case however the target build agents are used by many different applications so I’m hesitant to install or mess with system…

Use Pulumi to Create and Provision an Azure VM for IoT Edge

May 3, 2020 Geoff Hudik

Overview In working with Azure IoT Edge, I wanted to evaluate dynamically creating a Linux VM to perform automated integration testing against – perhaps one spun up and torn down within CI/CD or otherwise short-lived for ad-hoc testing. There are a number of ways to do this but I decided to give Pulumi a shot.…

Deploying .NET Apps to Raspberry Pi with GitHub Actions and Docker

April 27, 2020 Geoff Hudik

The last post in this series explored different ways of deploying .Net apps to a Raspberry Pi and touched on some of the pros and cons of using Docker for this. This post covers using GitHub actions to build a Raspberry Pi image and deploy to Docker Hub when commits are pushed to the repository.…

Deploying, Running, Debugging .NET Code on Raspberry Pi

April 27, 2020 Geoff Hudik

Overview While I settled on Docker as the means to deploy and run my .NET code on a Pi for this project, it’s worth looking at other options. This post explores a few common options, each of which has its own pros and cons and may be useful at different times. It also touches on…

Automating Raspberry Pi Setup

April 27, 2020May 24, 2020 Geoff Hudik

After creating the SD card for this project, I next wanted to automate the initial Pi setup on the first login – further configuring system settings and installing applications. While it might have been possible to do some of that with pi-gen or Yocto layers, I just wanted a simple script to execute initially. In…

Scripting Raspberry Pi Image Builds

April 27, 2020May 24, 2020 Geoff Hudik

One of the first steps towards Raspberry Pi fun is installing a Raspberry Pi operating system image on an SD card and this project was no different. Initially it’s common to use a GUI tool like the recently announced Raspberry Pi Imager or Balena Etcher. You might think this is more a one-time setup step…

Raspberry Pi Cat Motion Siren

April 27, 2020May 23, 2020 Geoff Hudik

I’ve been wanting to dive deeper into Raspberry Pi development for a while but needed to make the time and find a project. Image classification using machine learning has been an interest so something using the motion sensor and camera sounded ideal. As it turns out, my significant other’s cat provided an opportunity to put…

Trying Stream Deck From a Developer’s Perspective

July 19, 2019 Geoff Hudik

I’ve heard good things about Stream Deck in the past but since I’m not a streamer I’ve never looked into it. However it was recently heavily discounted on Amazon’s Prime Day and my curiosity got me to pull the trigger and see how I might use it more from a developer’s perspective. The following video…