Category: macOS

Using a Software Defined Radio to Debug LoRa Communication Problems

As part of my ongoing “Introduction to IoT” series, in this article you’ll learn how to use a cheap software defined radio (SDR) to diagnose problems between different LoRa radios and drivers. SDR can be invaluable when diagnosing LoRa link problems, especially when using new and untested hardware and software. What follows is an account of the many problems I...

Getting Started With Lattice IceStick FPGA Using Open Source Tools on MacOS

The Lattice IceStick evaluation board is a great way into the exciting new world of FPGAs. It has opened up the traditionally closed world of FPGA development to hobbyists and makers. But working out how to install a development toolchain can be daunting, especially for Mac users. This tutorial is a step-by-step guide on how to bypass the official tools...

Stop Being Afraid Of Regular Expressions: 9 Essential Patterns You Should Learn

Regular expressions have a somewhat daunting reputation. Arguably one of the most useful inventions in computing history, they are nonetheless regarded with equal measures of awe and dread even by some experienced programmers. Why is this? Regular expressions are actually straightforward to understand and use. But their reputation has not been helped by people copying large and complex patterns from...

Advanced Wildcard Patterns Most People Don’t Know

If you’re a macOS Terminal or Linux shell user you may be familiar with simple wildcard patterns. But most people don’t know the more advanced patterns, which occupy a kind of netherworld between simple wildcards and their more complex cousins, regular expressions. In this article you’ll learn about these patterns and their hidden power.   In my article¬†Think You Understand...