GPS Speedometer with MAX and AVG speed

thingiverse

A compact and portable GPS speedometer powered by an Arduino board, featuring a large main speed display alongside maximum and average speed displays. The device is designed to be rugged and easy to assemble. Its status indicators are easily visible through its translucent case, printed using glow-in-the-dark PLA plastic. Most of the lights shine through the case without the need for additional holes. Here's a video demonstrating the GPS speedometer: https://youtu.be/PQQ9oJM29po The Bill of Materials (BOM) includes: * A GPS module from Geekstory * A 20x4 LCD screen from NOYITO * A Powerboost 1000c charger from Adafruit * A switch from Amazon * A USB breakout board from MagiDeal * Some Neopixels I used a piece of a long strip of Neopixels, but these would work better. The device requires batteries that fit within an 80mm wide and 8mm thick space. I used three 60348 900MAH cells in parallel with protection boards. There's also enough space for a single 18650 cell. On my build, I removed the plug from the Arduino Nano and connected the USB data lines to the charger plug, allowing me to program and charge the device from the same port. This is an optional modification. The source code for the Arduino is included, with pin assignments listed at the top of the file. The device uses six M3x8mm self-threading screws to close it, as well as four screws to secure the screen. I used bright LEDs for my indicators and printed a cover to diffuse them; an LCD Bezel cover is optional. There's also an optional mounting clip available, which I'm currently printing. The clip comes with a strap clip thing. Mounting holes are spaced 103x80mm apart on the back of the device, compatible with M3 self-tapping screws. The GPS speedometer uses the TinyGPS++ Library and can be modified to suit your needs. You can purchase a completed unit from Etsy or get the latest code for the project on Github. Thanks!