{"id":283,"date":"2024-01-23T17:10:14","date_gmt":"2024-01-23T17:10:14","guid":{"rendered":"https:\/\/foxlap.com\/tutorials\/?p=283"},"modified":"2026-03-25T17:35:57","modified_gmt":"2026-03-25T17:35:57","slug":"diy-build-your-foxlap-device","status":"publish","type":"post","link":"https:\/\/foxlap.com\/tutorials\/diy-build-your-foxlap-device\/","title":{"rendered":"DIY-Build Your FoxLAP device"},"content":{"rendered":"\n

FoxLAP – The DIY version<\/mark><\/h2>\n\n\n\n

This is what you will get at the end of this tutorial. A complete working GPS LAP timer…<\/strong>
<\/p>\n\n\n\n

\n
\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n<\/figure>\n\n\n\n

A complete working GPS LAP timer, yes, but with some limits.
Limitations<\/strong>: No external sensors (rpm, temp, EGT), no accelerometer. We can add accelerometer, temp sensor, and rpm to this device, but we will see that maybe in another tutorial.
This device is not really (completely not) water resistant, no battery management (only a physical switch power button). And finally something ugly inside with manual soldering and hot glue. Of course this is a quick and dirty<\/strong> implementation, i’m sure you can do better than i did. This is what i’ve done to create the first prototype to be able to start programming the firmware. I did it again for this tutorial but didn’t invest much time to get a high quality build. If you improve this, please share<\/p>\n\n\n\n

Even with these limitations, you will get your lap times, gap with best, speed, sectors, theoretical best lap, live delta and so on… and you will be able to analyze your recorded GPS data (GPXRender software<\/a> and with the online tool<\/a>).<\/p>\n\n\n\n

\n
\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n<\/figure>\n\n\n\n

<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

The goal of this tutorial is to create the simplest version possible. I started the development of this project on a version like this (in fact exactly the same). It brings back memories of going back to it. <\/p>\n\n\n\n

This simple version is probably not the best, and it can be improved easily – we can obviously discuss choices i made, why blender?, why this display, why this MCU… But it’s there and it works So ready to go<\/strong>?<\/p>\n\n\n\n

<\/div>\n\n\n\n

1- Required parts<\/h2>\n\n\n\n

This is what i used, mostly because i had most of these items available at home. some of this parts can be changed to more convenient, cheaper parts (depends on availability on your location). links to purchase these items are provided but i don’t have any interests on this… you are free to purchase where you want.<\/p>\n\n\n\n