Bernard Killeen

By Brendan Stafford

The Problem

I recently had air conditioning installed in my home extension. It is supplied with a hand controller that has a wide range of functions. I should have asked for the Wi-Fi option but I missed a trick.  I quite fancied the idea of controlling it via Alexa inside the house and via my phone when outside.

A discussion at one of our maker meetings set me thinking. It seems that an Arduino extension called SinRic Pro will implement Alexa commands in a ‘home…

The electronics box has been drawn in a 3D modelling package. The objective is to produce a 2D drawing of the panel outline together with the cutouts. It is difficult to position the panel in the correct place on the cutter bed so that the apertures are cut in the right place and are correctly aligned with the panel outline.

The cut file read in to the cutter has two layers. The first layer is the outline, and the second is the aperture that we want to cut. The first step is to place…