How to use interrupts on the LPC55S69 powered Okdo E1

In the last article, I summarized the process of enabling and using GPIO pins on the Okdo E1 by configuring the MCU in the MCUXpresso IDE. This time, I’ll enable pin interrupts that allow an application to react to various events.

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How to use the GPIO pins on the LPC55S69 powered Okdo E1

Over the last couple of years, I’ve utilized a few different Arduino, Raspberry Pi, and other Linux based hobbyist development boards, like the BeagleBone Black, for many of my projects. I, however, never used other microcontroller boards that weren’t Arduino compatible. Recently, I started experimenting with the Okdo E1, a development board that’s powered by the LPC55S69, a very capable NXP microcontroller.

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Arduino MKR Vidor 4000 Verilog FPGA and MCU hello world tutorial

This article discusses how user code can be uploaded to both, the MCU and the FPGA, of the Arduino MKR Vidor 4000. Some time ago, I wrote this summary of the topic which, however, didn’t include an easy to follow tutorial. Instead, it was more of an outline aimed at more experienced users. However, today I tried to re-create the steps, and I noticed that the original article wasn’t as simple to follow for beginners as I’d have liked it to be.

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Simple Swinging Power Lines and Ropes in Unity

I wanted to create dynamic power lines for a game that I’ve been working on in Unity for the last few weeks. I couldn’t find a solution that satisfied my requirements, and so I decided to implement a custom solution, which I wanted to share with you.

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How to build a responsive Angular Frontend

Smartphones and tablet computers have become more and more important over the last couple of years. Today, it’s almost impossible to image the internet without websites that function and look great on almost any screen. However, with business apps, that is often not the case. And, to be fair, it’s often also not required. In my case, however, I wanted to add basic responsive support for an Angular frontent that I’m working on, and in this article, I’d like to present the method that I used.

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Write better looking console applications using ANSI escape codes

Console applications are a great thing: They usually solely focus on getting things done. That, however, often also means that the user experience can come short. While I don’t have a problem with a simple text-only menu, it can often scare away new users. But there’s a way to easily style your console applications so that they can have something that you could call a primitive GUI:

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Control a CRT with the Raspberry Pi DPI

I managed to send video signals to a Mac Classic’s internal CRT monitor from a BeagleBone Black back in 2016, and it seems like this is a topic that a lot of people are still interested in. A recent discussion gave me the idea to try and do the same thing with a Raspberry Pi, and I wanted to document the experiment in this article.

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