This project began life way back before I discovered the Raspberry Pi with the PICAXE microcontoller and the commonly used DS18B20 1-wire digital temperature thermometer (top-right). The completed sensor rig. Fast forward to 2017 and I helped my daughter build an Air Quality School Science project using a Raspberry Pi Zero.   To do this, we added a couple of simple-to-use sensors, the MQ7, which measures carbon monoxide and the MQ135 Air Quality sensor.  To convert the data we used a MCP3008 analog-to-digital converter (ADC) mounted on a breadboard.  There are plenty of example ..read more

With May here and the longer winter evenings ahead I thought I'd make the time to review some fun tech stuff I did last summer.  I've got a spare Raspberry Pi or two so I decided to put them to good use by constructing this simple server rack.  In this post, I'll give a quick overview of the hardware used and a breakdown of the different software applications installed. For more detailed instructions of how the software is configured, I've included links to some really helpful sites at the end of the post.Let's start at the top.  This a Raspberry Pi Zero, running Raspbian Stretch OS.  The post ..read more

Ghost has a flexible organisational taxonomy called tags which can be used to configure your site structure using dynamic routing. Basic TaggingYou can think of tags like Gmail labels. By tagging posts with one or more keyword, you can organise articles into buckets of related content.When you create content for your publication you can assign tags to help differentiate between categories of content. For example you may tag some content with  News and other content with Podcast, which would create two distinct categories of content listed on /tag/news/ and /tag/weather/, respectively.If you ta ..read more

There are three primary ways to work with third-party services in Ghost: using Zapier, editing your theme, or using the Ghost API.ZapierYou can connect your Ghost site to over 1,000 external services using the official integration with Zapier.Zapier sets up automations with Triggers and Actions, which allows you to create and customise a wide range of connected applications.Example: When someone new subscribes to a newsletter on a Ghost site (Trigger) then the contact information is automatically pushed into MailChimp (Action).Here are the most popular Ghost<>Zapier automation templates ..read more