Tempus Ex

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fpga 26 January 2023

Professional Video With Arduinos - An Intro to SDI Video & PCB Fabrication

In this post, we'll do a deep dive into SDI, then create what's possibly the world's cheapest SDI signal generator by fabricating an SDI transmitter for an Arduino.

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rust 26 January 2022

Hello, Microcontroller!

In this post, we'll explore at a high level the key concepts of programming microcontrollers. Then, to further demystify them, we'll write a small Rust program and run it on an ARM microcontroller.

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rust 30 September 2021

Rust for ML

Is Rust a contender for ML projects?

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av 6 July 2021

Hello, Video Codec!

In this post, we'll explore at a high level the key concepts and defining characteristics of video codecs. Then, to further demystify them, we'll even implement one from scratch in about a hundred lines of Rust.

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av 18 March 2021

Real-Time Video Processing With FPGAs

If you need to transcode an 8K video in real-time, you're going to struggle to find hardware capable of keeping up. This is an introduction to FPGAs and how they might be able to help.

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golang 13 November 2020

Go's Recurring Security Problem

Go is designed to be able to build untrusted packages safely without running any code from them. Unfortunately, this is easier said than done.

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quantum 31 August 2020

Solving Professional Football's Nurse Scheduling Problem with Quantum Annealing

Each year, the matchups for professional football leagues such as the CFL are decided deterministically based on a rotating schedule. With the matchups decided, these leagues are then faced with a combinatorial optimization problem.

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rust 13 July 2020

Making Unsafe Rust Safe

One of Rust's greatest strengths is its guarantee that if it compiles, it's free of data races and thread-safety violations. To use unsafe code and maintain that guarantee requires you to write safe wrappers that perfectly define the contracts under which the unsafe code can be used.

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git 11 May 2020

What exactly is a Git "commit"?

Those new to Git often find their repo in confusing or inexplicable states. More experienced users may know how to get things done, but might not know why the things they do work. Understanding what Git is at a more fundamental level helps both types of people use Git more effectively.

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golang 8 April 2020

Generics in Go – How They Work and How to Play With Them

Generics in Go have come much closer to becoming a reality. Here's what the latest design looks like and how you can try out generics yourself.