Uncannier Software - It's not enough to just be uncanny

RAK2245 LoRaWAN Gateway With An Outdoor Antenna

Uncannier Software / December 31, 2019

In this article I add an outdoor antenna to the RAK2245 Raspberry Pi 3B+ 915MHz gateway I created a month ago. This article is the third in my LoRaWAN series that started here. This part of my LoRaWAN adventure required much quiet contemplation and planning, often aided by fine whiskey. Motivation In the month that …

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RAK7204 LoRaWAN Node & The Things Network

Uncannier Software / December 29, 2019

In this article I setup a RAK7204 LoRa Environmental Node as an application on The Things Network with data reaching TTN via my RAK2245 LoRaWAN Gateway. This article is the second in a series that started here. RAK Documentation Detailed setup instructions can be found at RAK’s site: https://doc.rakwireless.com/quick-start/rak7204-lora-environmental-sensor/rak7204-lora-environmental-sensor Unboxing There’s not a lot in …

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LoRaWAN Gateway: RAK2245, Raspberry Pi 3B+ & TTN

Uncannier Software / November 30, 2019

In this article I create a LoRaWAN gateway using a RAK Wireless RAK2245 Pi HAT LoRa Concentrator and a Raspberry Pi 3 Model B+. The gateway is registered on The Things Network. This article is the first in a series: LoRaWAN Gateway: RAK2245, Raspberry Pi 3B+ & TTN RAK7204 LoRaWAN Node & The Things Network …

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CR2032 Lithium Battery Charge Level Measurement

Uncannier Software / June 15, 2019

The CR2032 3V lithium button cell battery is commonly used in small electronic devices, and especially BLE IoT devices. In this article I explain the complications associated with estimating the remaining charge level (“state of charge”) of this battery, and recommend a simple strategy for reasonably accurate measurement. I demonstrate this strategy in the Uncannier …

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Automated Software Versioning – Continuous Integration & Thunderboard

Uncannier Software / June 8, 2019

In this article I put my Three Laws of Software Versioning into practice. I show how to setup automated software versioning for an embedded firmware project. I use the Uncannier Thunderboard projects, and CircleCI continuous integration, as an example. Strategy Let’s get straight to the point. To automate software versioning you need a way to …

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Three Laws of Software Versioning

Uncannier Software / June 1, 2019

In this article I present my highly-opinionated three laws of software versioning. My laws are an academic rung or two below Sir Isaac’s three laws of motion, but I at least have better hair. The Version Is The Identification There are lots of articles on the web about software versioning. Mostly about semantic versioning and …

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Enabling HTTPS & SSL Using Let’s Encrypt & Certbot

Uncannier Software / April 22, 2019

In this post I’ll show you how to add HTTPS/SSL to an existing website that uses Apache HTTP Server. I’ll generate a free SSL/TLS certificate using Let’s Encrypt, specifically the Certbot ACME Client. Additionally, we’ll cover: how to enable automatic renewal of SSL/TLS certificates. how to setup re-writes in Apache such that all HTTP requests …

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Tomcat in AWS – Part 4 – Install MariaDB / MySQL

Uncannier Software / April 17, 2019

In this article we add MariaDB (MySQL) to our Tomcat Ubuntu 18.04 LTS server in AWS EC2. I cover the basics of how to integrate it with your Tomcat web applications. If you’ve been playing along at home, you know this is part 4 of a series that started here. Installation Installing MariaDB in Ubuntu …

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Tomcat in AWS – Part 3 – Installation and Security Hardening

Uncannier Software / April 14, 2019

This article is part 3 of a series that started here. In this post we get down to the business of actually installing Tomcat into the Ubuntu 18.04 LTS AWS EC2 instance created in earlier posts. I go in to some detail on how to secure your Tomcat installation. Installation We start by installing Java …

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Tomcat in AWS – Part 2 – Apache Web Server

Uncannier Software / April 10, 2019

In this article I cover how to install Apache HTTP Server into Ubuntu 18.04 LTS. This article is part 2 of a series on how to create a Tomcat server in AWS. In part 1 we created an Ubuntu 18.04 LTS server in AWS EC2. We now add Apache HTTP Server as a front-end for …

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