Sami Lahti

Get a grip to your Python versions in macOS

There are multiple ways to manage and use Python with macOS, from using just system Python (comes with macOS) or managing it directly with Homebrew. I wanted to start from clean slate and here’s what I did. It will give you control which version of Python you are using and when. And no need forContinue reading “Get a grip to your Python versions in macOS”

Testing Azure AD Verifiable Credentials Preview

Microsoft announced Azure AD Verifiable Credentials a month ago. It is a platform you can use to design and issue verifiable credentials to represent proof of employment, education or any other claim. Holder of the credential can decide who to share their credentials with and they can present credentials by using Microsoft Authenticator. Credentials isContinue reading “Testing Azure AD Verifiable Credentials Preview”

DIY: Making your home (almost) Ad-free with Pi-hole

I have “No Ads, please!” label on my physical mailbox, but that works only for traditional ads. For my devices, I need to install an ad blocker to each browser and for some devices like my smart TV such doesn’t exist. Luckily, there is a solution for that and it is called Pi-hole. Pi-Hole isContinue reading “DIY: Making your home (almost) Ad-free with Pi-hole”

Building a Blade Runner blaster replica kit

Since I saw Adam Savage showing off his Blade Runner blaster collection (link), I have always wanted to have my own, because I’m a huge fan of the movies. There are many different kits available on the market, but the Tomenosuke version is the one you should get, because it is by far the mostContinue reading “Building a Blade Runner blaster replica kit”

DIY Home Automation with Home Assistant

When I moved to my new house three years ago, I searched solutions how to control my garage door with my iPhone, especially through Apple Home(Kit). But I couldn’t find any cheap commercial solutions and HomeKit accessories were quite new and expensive back then. So, I started to investigate DIY solutions and I was recommendedContinue reading “DIY Home Automation with Home Assistant”

Monitoring your home temperature – Part 3: Visualizing your data with Power BI

Finally, we have our infrastructure up and running and we can start visualizing it with Power BI. Just login to your Power BI account: https://app.powerbi.com/ Select My Workspace and click Datasets + dataflows. Click the three dots from your dataset and choose Create Report. Let’s create line charts for temperature, humidity and air pressure. EachContinue reading “Monitoring your home temperature – Part 3: Visualizing your data with Power BI”

Monitoring your home temperature – Part 2: Setting up Azure

Now we need to setup the Azure side and for that you need an Azure subscription. You can get a new subscription with 170€ of credits for 30 days with this link, if you don’t have anything yet: https://azure.microsoft.com/en-us/free/ As this is a demo environment, we do not focus heavily on security. You need someContinue reading “Monitoring your home temperature – Part 2: Setting up Azure”

Monitoring your home temperature – Part 1: Setting up RuuviTags and Raspberry Pi

I actually did this a few years ago, but never wrote a detailed blog about it, so I thought now would be good time for it. We moved to a new house three years ago and since then, we have had issues with floor temperatures. It’s hard to maintain steady temperature for all rooms andContinue reading “Monitoring your home temperature – Part 1: Setting up RuuviTags and Raspberry Pi”