## GPS Project II: The Importance of testing your code

I hope this blog post illustrates the importance of testing your code thoroughly, first let’s have a look at the issues I discovered in video form. Your browser does not support the video tag. Now to explain What’s going on. As I outlined in my previous post, the UK is split into 100km squares, each labelled with a 2 letter code. So I went to the border of two squares ($$TA$$ and $$TF$$, marked with the red cross on the map), to see how well it worked....

October 23, 2020 · Peter Taylor

## GPS Project

In this project I created a device to display Ordnance Survey grid references using an ESP32 and a GPS chip in a 3D printed case. The Maths A little background on the earth: The earth is roughly an ellipsoid (squashed sphere), but as these are approximations no one model will perfectly encapsulate the data, several different ellipsoids exist, but we will only be looking at 2 in this post, WGS84 and Airy 1830...

October 4, 2020 · Peter Taylor